LD39200PUR

LD39200 Datasheet 2 A high PSRR ultra low drop linear regulator with reverse current protection Features • • • • • • • • • • • Input voltage from 1.25 V to 6.0 V Ultra low drop: 130 mV (typ.) at 2 A load 1 % output accuracy at 25 °C, 2 % in full temperature range High PSRR: 70 dB at 1 kHz Reverse current protection 2 A guaranteed output current Available in fixed and adjustable output voltage version from 0.5 V with 100 mV step Power Good Internal current and thermal limit Operating junction temperature range: -40 °C to 125 °C DFN6 (3 x 3 mm) and DFN8 (4 x 4 mm) packages Applications • • Telecom infrastructure Medium power POL Description Maturity status link LD39200 The LD39200 provides 2 A of maximum current with an input voltage range from 1.25 V to 6.0 V, and a typical dropout voltage of 130 mV. It is stable with ceramic capacitors on the output (10 µF). Typical power supply rejection ratio is 70 dB at 1 kHz and starts to roll off at 20 kHz. The enable logic control function puts the LD39200 in shutdown mode, reducing the total current consumption to 10 nA (typ.). Power Good flag is available on a dedicated pin. The device also includes reverse current protection, short-circuit constant current limit and thermal protection. Typical applications are for Telecom infrastructure and consumer. DS10079 - Rev 3 - September 2018 For further information contact your local STMicroelectronics sales office. www.st.com LD39200 Block diagram 1 Block diagram Figure 1. Block diagram VIN Power good VREF PG VFB Bandgap reference R1 500mV R2 RC filter Reverse current protection 500mV VFB OPAMP PMOS VOUT R3 EN Enable Internal enable R4 AM13907V1 DS10079 - Rev 3 page 2/29 LD39200 Pin configuration and description 2 Pin configuration and description Figure 2. Pin configuration (top view) OUT IN ADJ/S ENS E EN GND PG OUT IN OUT IN ADJ/S ENS E EN GND PG AM13909V1 Table 1. DFN6 (3 x 3 mm) package pin description Pin name Pin number Description IN 6 Input voltage GND 3 Ground EN 5 Enable pin. The device is in OFF state when this pin is pulled low ADJ/sense (1) 2 Adjustable pin on ADJ version can be connected to external resistor divider to set the output voltage. Output sense pin on the fixed version has to be connected to VOUT OUT 1 Output voltage PG 4 Power Good GND Exposed pad Exposed pad should be connected to GND 1. The output sense pin of the fixed version has to be connected to the output pin for proper operation. Table 2. DFN8 (4 x 4 mm) package pin description Pin name Pin number IN (1) 7, 8 GND 4 Ground EN 6 Enable pin. The device is in OFF state when this pin is pulled low ADJ/sense (2) 3 Adjustable pin on ADJ version can be connected to external resistor divider to set the output voltage. Description Input voltage Output sense pin on the fixed version has to be connected to VOUT OUT (3) 1, 2 PG 5 GND Output voltage Power Good Exposed pad Exposed pad should be connected to GND 1. Both of input pins have to be connected together on the board. 2. The output sense pin of the fixed version has to be connected to the OUT pin for proper operation. 3. Both of output pins have to be connected together on the board. DS10079 - Rev 3 page 3/29 LD39200 Typical application 3 Typical application Figure 3. LD39200 typical application schematic OUT IN CIN COUT LD39200 OUT IN R1 CBYP CIN LD39200 COUT (optional) ADJ EN ON GND PG OFF SENSE EN R2 ON GND PG OFF Adjustable version Fixed version AM13909V1 Note: DS10079 - Rev 3 R1 and R2 are calculated according to the following formula: R1 = R2 x (VOUT / VADJ - 1). Recommended value for CIN and COUT is 10 μF. page 4/29 LD39200 Maximum ratings 4 Maximum ratings Table 3. Absolute maximum ratings Symbol VIN VADJ VOUT /VSENSE Value Unit Input supply voltage -0.3 to 7 V Adjustable voltage -0.3 to 2 V Output voltage/output sense voltage -0.3 to 7 V Internally limited A IOUT Output current EN Enable pin voltage -0.3 to 7 V PG Power Good pin voltage -0.3 to 7 V PD Power dissipation Internally limited W ESD Charge device model ±500 Human body model ±2000 V TJ-OP Operating junction temperature -40 to 125 °C TJ-MAX Maximum junction temperature 150 °C -55 to 150 °C TSTG Note: Parameter Storage temperature Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. Table 4. Thermal data Symbol DS10079 - Rev 3 Parameter DFN6 (3 x 3 mm) DFN8 (4 x 4 mm) RTHJC Junction-to-case thermal resistance 10 4 RTHJA Junction-to- ambient thermal resistance 55 40 Unit °C/W page 5/29 LD39200 Electrical characteristics 5 Electrical characteristics (TJ = 25 °C, VIN = VOUT+1 V; VOUT = VADJ; CIN = 10 µF; COUT = 10 µF; IOUT = 10 mA; VEN = VIN) Table 5. Electrical characteristics, adjustable version Symbol VIN Parameter Test conditions Operating input voltage range Min. 1.25 Adjustable pin voltage VADJ IADJ Adjustable pin voltage accuracy Adjustable pin current ∆VADJ%/ ∆VIN Static line regulation ∆VADJ%/ ∆IOUT Static load regulation V V 1.0 -40 °C < TJ < 125 °C -2.0 2.0 -40 °C < TJ < 125 °C 100 VOUT + 1 V < VIN < 6.0 V; TJ = 25 °C 0.01 -40 °C < TJ < 125 °C 0 mA < IOUT < 2 A; TJ = 25 °C VIN = 2.5 V; IOUT = 2 A; -40 °C < TJ < 125 °C VOUT = VADJ ; f = 10 Hz to 100 kHz % nA 0.2 0.1 -40 °C < TJ < 125 °C -40 °C < TJ < 125 °C Output noise voltage 6.0 -1.0 VIN = 5.3 V; IOUT = 2 A; eN Unit TJ = 25 °C -40 °C < TJ < 125 °C Dropout voltage (1) Max. 0.5 VIN = 1.4 V; IOUT = 1 A; VDROP Typ. 0.4 120 250 135 250 110 250 %/V %/A mV 45 µVRMS / VOUT 24 µVRMS VIN = VOUT + 0.4 V, IOUT = 700 mA; CIN = COUT = 10 µF, R2 = 10 kΩ, eN Output noise voltage R1 = (VOUT – 0.5) x 20 kΩ, Cbyp = 470 nF VOUT = 1.8 V; VIN = VOUT+0.5 V; COUT = 10 µF; IOUT = 10 mA; 70 TJ = 25 °C; f = 1 kHz dB VOUT = 1.8 V; VIN = VOUT + 0.5 V; COUT = 10 µF; IOUT = 10 mA; SVR Supply voltage rejection 50 TJ = 25 °C; f = 100 kHz VOUT = 1.8 V; VIN = VOUT + 0.5 V; COUT = 10 µF; IOUT = 10 mA; 50 TJ = 25 °C; f = 500 kHz dB VOUT = 1.8 V; VIN = VOUT + 0.5 V; COUT = 10 µF; IOUT = 10 mA; 40 TJ = 25 °C; f = 1 MHz DS10079 - Rev 3 page 6/29 LD39200 Electrical characteristics Symbol Parameter Test conditions Min. IOUT = 0 A IQ Typ. 100 IOUT = 0 A; -40 °C < TJ < 125 °C Quiescent current Max. Unit µA 300 IOUT = 2 A; 1 mA IOUT = 2 A; -40 °C < TJ < 125 °C 3 Shutdown current Ven = 0, Vin = 6 V 10 nA ISC Short-circuit current VOUT = 0 V 3.5 A IMIN Minimum output current VEN IEN PG Enable input logic low 1.25 V < VIN < 6.0 V Enable input logic high -40 °C < TJ < 125 °C Enable pin input current VEN = VIN; 1.25 < VIN < 6.0 V Power Good output threshold Rising edge 0.92* Vout Falling edge 0.8*Vout Power Good output voltage low TSHDN 0 A 0.5 V 1.2 10 nA Isink = 6 mA open drain output V 0.4 Thermal shutdown 170 Hysteresis 20 °C 1. Dropout voltage is the input-to-output voltage difference at which the output voltage is 100 mV below its nominal value; this specification does not apply to nominal output voltages below 1.2 V. (TJ = 25 °C, VIN = VOUT+1 V; CIN = 10 µF; COUT = 10 µF; IOUT = 10 mA; VEN = VIN) Table 6. Electrical characteristics, fixed version Symbol Parameter VIN Operating input voltage range VOUT Output voltage accuracy Test conditions Max. Unit 1.25 6.0 V TJ = 25 °C -1.0 1.0 -40 °C < TJ < 125 °C -2.0 2.0 VOUT + 1 V < VIN < 6.0 V; ∆VADJ%/ ∆VIN Static line regulation TJ = 25 °C Min. Typ. 0.01 -40 °C < TJ < 125 °C ∆VADJ%/ ∆IOUT VDROP eN DS10079 - Rev 3 Static load regulation Dropout voltage Output noise voltage 0 mA < IOUT < 2 A; TJ = 25 °C -40 °C < TJ < 125 °C VOUT = 2.5 V; f = 10 Hz to 100 kHz %/V 0.1 0.05 -40 °C < TJ < 125 °C VOUT = 3.3 V; IOUT = 2 A; % 0.4 130 40 250 %/A mV µVRMS /VOUT page 7/29 LD39200 Electrical characteristics Symbol Parameter Test conditions Min. Typ. Max. Unit VOUT = 1.8 V; VIN = VOUT + 0.5 V; COUT = 10 µF; IOUT = 10 mA; 70 TJ = 25 °C; f = 1 kHz VOUT = 1.8 V; VIN = VOUT + 0.5 V; COUT = 10 µF; IOUT = 10 mA; SVR Supply voltage rejection 50 TJ = 25 °C; f = 100 kHz dB VOUT = 1.8 V; VIN = VOUT + 0.5 V; COUT = 10 µF; IOUT = 10 mA; 50 TJ = 25 °C; f = 500 kHz VOUT = 1.8 V; VIN = VOUT + 0.5 V; COUT = 10 µF; IOUT = 10 mA; 40 TJ = 25 °C; f = 1 MHz IOUT = 0 A IQ Quiescent current 100 IOUT = 0 A; -40 °C < TJ < 125 °C 300 IOUT = 2 A; 1 IOUT = 2 A; -40 °C < TJ < 125 °C mA 3 Shutdown current Ven = 0, Vin = 6 V 50 nA ISC Short-circuit current VOUT = 0 V 3.5 A IMIN Minimum output current VEN IEN 1.25 V < VIN < 6.0 V Enable input logic high -40 °C < TJ < 125 °C Enable pin input current VEN = VIN; 1.25 < VIN < 6.0 V PG Power Good output voltage low TSHDN 0 Enable input logic low Power Good output threshold DS10079 - Rev 3 µA 0.5 1.2 10 Rising edge 0.92*VOUT Falling edge 0.8*VOUT Isink = 6 mA open drain output A V nA V 0.4 Thermal shutdown 170 Hysteresis 20 °C page 8/29 LD39200 Application information 6 Application information 6.1 Thermal and short-circuit protections The LD39200 is self-protected from short-circuit conditions and overtemperature. When the output load is higher than the one supported by the device, the output current rises until the limit of typically 3.5 A is reached; at this point the current is kept constant even when the load impedance is zero. The thermal protection acts when the junction temperature reaches 170 °C. The IC enters the shutdown status. As soon as the junction temperature falls again below 150 °C the device starts working again. In order to calculate the maximum power the device can dissipate, keeping the junction temperature below TJ-OP , the following formula is used: PDMAX = 125 − TAMB / RTHJ − A 6.2 (1) Output voltage setting for ADJ version In the adjustable version, the output voltage can be set from 0.5 V up to the input voltage minus the voltage drop across the pass transistor (dropout voltage), by connecting a resistor divider between the ADJ pin and the output, allowing remote voltage sensing. The resistor divider can be selected using the following equation: VOUT = VADJ 1 + R1/ R2 , witℎ VADJ = 0.5 V typ. 6.3 (2) Enable pin The LD39200 features an enable function. When the EN voltage is higher than 1.2 V the device is ON, and if it is lower than 0.5 V the device is OFF. In shutdown mode, the total current consumption is 10 nA (typ). The EN pin does not have an internal pull-up, therefore it cannot be left floating if it is not used. 6.4 Power Good pin (PG) Some applications require a flag showing that the output voltage is in the correct range. Power Good threshold depends on the output voltage. When the output voltage is higher than 0.92 * VOUT(nom), the PG pin goes to high impedance. If the output voltage is below 0.80 * VOUT(nom) the PG pin goes to low impedance. If the device works well, the PG pin is at high impedance. 6.5 Reverse current protection The device avoids the reverse current to flow from the output to the input during any operating condition (EN = 0 or EN = 1, VIN > VOUT + VDROP). During fast turn-on/off this function prevents a big current from flowing to the input. Moreover it is used to avoid the reverse current to flow from the output pin to the input one, when other power supplies, providing a voltage higher than the input voltage, are connected to the output pin. If a power supply, providing a voltage lower than LDO output voltage, is connected to OUT pin, LDO works in current protection, causing high power dissipation inside the device. When the device is disabled (EN = low) and VOUT > 0 V, a small current (few µA) is sunk from the OUT pin. DS10079 - Rev 3 page 9/29 LD39200 Typical performance characteristics 7 Typical performance characteristics (The following plots are referred to the typical application circuit and, unless otherwise noted, at TA = 25 °C) Figure 5. Dropout voltage vs. temperature (Vin = 1.4 V, Iout = 1 A) Figure 4. Dropout voltage vs. temperature (Vin = 1.3 V, Iout = 1 A) 250 200 200 150 150 mV mV 250 100 100 50 50 0 0 -40 -25 0 25 55 85 -40 125 -25 0 25 55 85 125 Temperature ºC Temperature ºC AM13910V1 AM13911V1 Figure 7. Dropout voltage vs. temperature (Vin = 1.5 V, Iout = 1 A) Figure 6. Dropout voltage vs. temperature (Vin = 1.4 V, Iout = 2 A) 250 500 450 200 400 350 mV mV 300 250 150 100 200 150 50 100 50 0 0 -40 -25 0 25 55 85 125 Temperature ºC -25 0 25 55 85 125 Temperature ºC AM13912V1 DS10079 - Rev 3 -40 AM13913V1 page 10/29 LD39200 Typical performance characteristics Figure 8. Dropout voltage vs. temperature (Vin = 1.5 V, Iout = 2 A) Figure 9. Dropout voltage vs. temperature (Vin = 2.5 V, Iout = 1 A) 500 140 450 120 400 100 350 80 mV mV 300 250 60 200 150 40 100 20 50 0 0 -40 -25 0 25 55 85 -40 125 -25 Temperature ºC 0 25 55 85 Temperature ºC AM13914V1 AM13915V1 Figure 11. Reference voltage vs. temperature (Vin = 1.5 V, Iout = 10 mA) Figure 10. Dropout voltage vs. temperature (Vin = 2.5 V, Iout = 2 A) 300 0.55 250 0.53 Vadj [V] 200 mV 125 150 0.51 0.49 100 0.47 50 0 -40 -25 0 25 55 85 125 0.45 -40 -25 0 25 55 85 AM13916V1 Figure 12. Quiescent current vs. temperature (Vin = 1.5 V, Iout = 0 mA) AM13917V1 Figure 13. Quiescent current vs. temperature (Vin = 1.5 V, Iout = 2 A) 2 Quiescent current [mA] 0.3 Quiescent current [mA] 125 Temperature ºC Temperature ºC 0.25 0.2 0.15 0.1 0.05 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 0 0 -40 -25 0 25 55 85 125 AM13918V1 DS10079 - Rev 3 -40 -25 0 25 55 85 125 Temperature ºC Temperature ºC AM13919V1 page 11/29 LD39200 Typical performance characteristics Figure 15. Line regulation vs. temperature (1.5 V ≤ Vin ≤ 6 V, Iout = 10 mA) Figure 14. Quiescent current vs. output current 1.4 Quiescent current [mA] 0.1 1.2 Line regulation [%/V] 0.09 1 0.8 0.6 0.4 0.2 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 0 1 10 100 500 1000 1250 1500 1750 0 2000 -40 Output current [mA] -25 0 25 55 85 125 Temperature ºC AM13920V2 AM13920V1 Figure 16. Load regulation vs. temperature (Vin = 1.5 V, 0 < Iout < 2 A) Figure 17. SVR vs. frequency 100.0 0.45 80.0 0.4 70.0 0.35 60.0 SVR [dB] Load regulation [%/A] VIN = 2.3V + Vripple 90.0 0.5 0.3 0.25 0.2 50.0 40.0 0.15 30.0 0.1 20.0 0.05 VIN = 4.0V + Vripple 10.0 0 -40 -25 0 25 55 85 0.0 125 100 Temperature ºC 1000 10000 f [Hz] 100000 AM13922V1 AM13921V1 Figure 18. Noise spectral density (no Cbyp) Figure 19. Noise spectral density (Cbyp = 470 nF) 10.0 10.0 VIN = 1.6V VOUT = 1.2V CBP = 0 ILOAD = 0.7A 9.0 VIN = 1.6V VOUT = 1.2V CBP = 470nF ILOAD = 0.7A VIN = 3.7V VOUT = 3.3V CBP = 0 ILOAD = 0.7A 9.0 VIN = 3.7V VOUT = 3.3V CBP = 470nF ILOAD = 0.7A VIN = 5.4V VOUT = 5.0V CBP = 0 ILOAD = 0.7A VIN = 5.4V VOUT = 5.0V CBP = 470nF ILOAD = 0.7A 8.0 eN [uV/SQRT(Hz)] eN [uV/SQRT(Hz)] 8.0 7.0 6.0 5.0 4.0 7.0 6.0 5.0 4.0 3.0 3.0 2.0 2.0 1.0 1.0 0.0 10 100 1000 f [Hz] DS10079 - Rev 3 1000000 10000 100000 AM13923V1 0.0 10 100 1000 f [Hz] 10000 100000 AM13924V1 page 12/29 LD39200 Typical performance characteristics Figure 20. Stability plan Figure 21. Enable startup, Vin = 1.25 V, Iout = 2 A ESR @100KHz[Ω] 10 1 STABILITY AREA 0.1 0.01 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 COUT [µF] (nominal value) AM13925V1 Figure 22. Enable startup, Vin = 6 V, Iout = 2 A Figure 23. Enable startup, no Cbyp VOUT VEN VIN = 3.7 V, V EN = from 0 to 2 V, I OUT = 100 mA, VOUT = 3.3 V, C IN = COUT = 10 µF, C BYP = 0 GIPG080420141550MT Figure 25. Line transient Figure 24. Enable startup, Cbyp = 470 nF VOUT VEN VIN VOUT VIN = 3.7 V, V OUT = 3.3 V, V EN = from 0 to 2V, I OUT = 100 mA, CIN = COUT = 10 µF, C BYP = 470 VIN = VEN = from 1.5 to 5.5 V, I OUT = 10 mA, NO CIN = COUT = 10 µF, T RISE = TFALL = 10 µs GIPG080420141552MT GIPG140420141401MT DS10079 - Rev 3 page 13/29 LD39200 Typical performance characteristics Figure 26. Load transient, no Cbyp VOUT VOUT VIN VIN VIN = 3.7 V, V OUT = 3.3 V, I LOAD = 10 mA to 2 A, CBYP = 0 GIPG140420141403MT DS10079 - Rev 3 Figure 27. Load transient, Cbyp = 470 nF VIN = 3.7 V, V OUT = 3.3 V, I LOAD = 10 mA to 2 A, CBYP = 470 nF GIPG140420141405MT page 14/29 LD39200 Package mechanical data 8 Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. DS10079 - Rev 3 page 15/29 LD39200 DFN6 (3 x 3 mm) mechanical data 8.1 DFN6 (3 x 3 mm) mechanical data Figure 28. DFN6 (3 x 3 mm) package outline 7946637_C DS10079 - Rev 3 page 16/29 LD39200 DFN6 (3 x 3 mm) mechanical data Table 7. DFN6 (3 x 3 mm) mechanical data Dim. mm Min. A 0.80 A1 0 A3 Max. 1 0.02 0.05 0.20 b 0.23 D 2.90 D2 2.23 E 2.90 E2 1.50 e L Typ. 0.45 3 3.10 2.50 3 3.10 1.75 0.95 0.30 0.40 0.50 Figure 29. DFN6 (3 x 3 mm) recommended footprint (all dimensions are in mm) 7946637_C DS10079 - Rev 3 page 17/29 LD39200 DFN6 (3 x 3 mm) tape and reel mechanical data 8.2 DFN6 (3 x 3 mm) tape and reel mechanical data Figure 30. DFN6 (3 x 3 mm) tape outline 7875978_N DS10079 - Rev 3 page 18/29 LD39200 DFN6 (3 x 3 mm) tape and reel mechanical data Figure 31. DFN6 (3 x 3 mm) reel outline 7875978_N Table 8. DFN6 (3 x 3 mm) tape and reel mechanical data Dim. DS10079 - Rev 3 mm Min. Typ. Max. A0 3.20 3.30 3.40 B0 3.20 3.30 3.40 K0 1 1.10 1.20 page 19/29 LD39200 DFN8 (4 x 4 mm) mechanical data 8.3 DFN8 (4 x 4 mm) mechanical data Figure 32. DFN8 (4 x 4 mm) package outline DS10079 - Rev 3 page 20/29 LD39200 DFN8 (4 x 4 mm) mechanical data Table 9. DFN8 (4 x 4 mm) mechanical data Dim. mm Min. Typ. Max. A 0.80 0.90 1 A1 0 0.02 0.05 A3 0,20 b 0.23 0.30 0.38 D 3.90 4 4.10 D2 2.82 3 3.23 E 3.90 4 4.10 E2 2.05 2.20 2.30 e L 0.80 0.40 0.50 0.60 Figure 33. DFN8 (4 x 4 mm) recommended footprint (all dimensions are in mm) AM11889v1 DS10079 - Rev 3 page 21/29 LD39200 DFN8 (4 x 4 mm) reel mechanical data 8.4 DFN8 (4 x 4 mm) reel mechanical data Figure 34. DFN8 (4 x 4 mm) tape outline (all dimensions are in mm) 7279936 DS10079 - Rev 3 page 22/29 LD39200 DFN8 (4 x 4 mm) reel mechanical data Figure 35. DFN8 (4 x 4 mm) reel outline Table 10. DFN8 (4 x 4 mm) reel mechanical data Dim. mm Min. Typ. A DS10079 - Rev 3 330 C 12.8 D 20.2 N 60 T Max. 13.0 13.2 22.4 page 23/29 LD39200 Ordering information 9 Ordering information Table 11. Order codes DFN6 (3 x 3 mm) DFN8 (4 x 4 mm) Output voltage LD39200PUR LD39200DPUR ADJ LD39200PU33R DS10079 - Rev 3 3.3 V page 24/29 LD39200 Revision history Table 12. Document revision history DS10079 - Rev 3 Date Revision 08-Jul-2014 1 06-Jul-2017 2 17-Sep-2018 3 Changes Initial release. Updated Table 11: "Order codes". Minor text changes. Updated note Section 3 Typical application. page 25/29 LD39200 Contents Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 2 Pin configuration and description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 Typical application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 4 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 5 Electrical characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 6 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6.1 Thermal and short-circuit protections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6.2 Output voltage setting for ADJ version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6.3 Enable pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6.4 Power Good pin (PG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6.5 Reverse current protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 7 Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 8 Package information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 9 8.1 DFN6 (3 x 3 mm) package information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 8.2 DFN6 (3 x 3 mm) packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 8.3 DFN8 (4 x 4 mm) package information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 8.4 DFN8 (4 x 4 mm) packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 DS10079 - Rev 3 page 26/29 LD39200 List of tables List of tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Table 10. Table 11. Table 12. DFN6 (3 x 3 mm) package pin description . . . . . DFN8 (4 x 4 mm) package pin description . . . . . Absolute maximum ratings . . . . . . . . . . . . . . . Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . Electrical characteristics, adjustable version . . . Electrical characteristics, fixed version . . . . . . . DFN6 (3 x 3 mm) mechanical data . . . . . . . . . . DFN6 (3 x 3 mm) tape and reel mechanical data DFN8 (4 x 4 mm) mechanical data . . . . . . . . . . DFN8 (4 x 4 mm) reel mechanical data . . . . . . . Order codes . . . . . . . . . . . . . . . . . . . . . . . . . Document revision history . . . . . . . . . . . . . . . . DS10079 - Rev 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 . 3 . 5 . 5 . 6 . 7 17 19 21 23 24 25 page 27/29 LD39200 List of figures List of figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Figure 18. Figure 19. Figure 20. Figure 21. Figure 22. Figure 23. Figure 24. Figure 25. Figure 26. Figure 27. Figure 28. Figure 29. Figure 30. Figure 31. Figure 32. Figure 33. Figure 34. Figure 35. DS10079 - Rev 3 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pin configuration (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LD39200 typical application schematic . . . . . . . . . . . . . . . . . . . . . Dropout voltage vs. temperature (Vin = 1.3 V, Iout = 1 A) . . . . . . . . . Dropout voltage vs. temperature (Vin = 1.4 V, Iout = 1 A) . . . . . . . . . Dropout voltage vs. temperature (Vin = 1.4 V, Iout = 2 A) . . . . . . . . . Dropout voltage vs. temperature (Vin = 1.5 V, Iout = 1 A) . . . . . . . . . Dropout voltage vs. temperature (Vin = 1.5 V, Iout = 2 A) . . . . . . . . . Dropout voltage vs. temperature (Vin = 2.5 V, Iout = 1 A) . . . . . . . . . Dropout voltage vs. temperature (Vin = 2.5 V, Iout = 2 A) . . . . . . . . . Reference voltage vs. temperature (Vin = 1.5 V, Iout = 10 mA) . . . . . Quiescent current vs. temperature (Vin = 1.5 V, Iout = 0 mA) . . . . . . Quiescent current vs. temperature (Vin = 1.5 V, Iout = 2 A). . . . . . . . Quiescent current vs. output current . . . . . . . . . . . . . . . . . . . . . . . Line regulation vs. temperature (1.5 V ≤ Vin ≤ 6 V, Iout = 10 mA) . . . Load regulation vs. temperature (Vin = 1.5 V, 0 < Iout < 2 A). . . . . . . SVR vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Noise spectral density (no Cbyp) . . . . . . . . . . . . . . . . . . . . . . . . . Noise spectral density (Cbyp = 470 nF) . . . . . . . . . . . . . . . . . . . . . Stability plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Enable startup, Vin = 1.25 V, Iout = 2 A . . . . . . . . . . . . . . . . . . . . . Enable startup, Vin = 6 V, Iout = 2 A . . . . . . . . . . . . . . . . . . . . . . . Enable startup, no Cbyp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Enable startup, Cbyp = 470 nF . . . . . . . . . . . . . . . . . . . . . . . . . . . Line transient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Load transient, no Cbyp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Load transient, Cbyp = 470 nF . . . . . . . . . . . . . . . . . . . . . . . . . . . DFN6 (3 x 3 mm) package outline . . . . . . . . . . . . . . . . . . . . . . . . . DFN6 (3 x 3 mm) recommended footprint (all dimensions are in mm). DFN6 (3 x 3 mm) tape outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . DFN6 (3 x 3 mm) reel outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . DFN8 (4 x 4 mm) package outline . . . . . . . . . . . . . . . . . . . . . . . . . DFN8 (4 x 4 mm) recommended footprint (all dimensions are in mm). DFN8 (4 x 4 mm) tape outline (all dimensions are in mm). . . . . . . . . DFN8 (4 x 4 mm) reel outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 . 3 . 4 10 10 10 10 11 11 11 11 11 11 12 12 12 12 12 12 13 13 13 13 13 13 14 14 16 17 18 19 20 21 22 23 page 28/29 LD39200 IMPORTANT NOTICE – PLEASE READ CAREFULLY STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. © 2018 STMicroelectronics – All rights reserved DS10079 - Rev 3 page 29/29 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: STMicroelectronics: LD39200DPUR LD39200PU33R LD39200PUR