ISL78307FBEAZ-T

DATASHEET ISL78307 FN7658 Rev.4.00 Aug 8, 2019 40V, Low Quiescent Current, 50mA Linear Regulator for Automotive Applications The ISL78307 is a high voltage, low quiescent current linear regulator ideally suited for “always-on” and “keep alive” automotive applications. The ISL78307 operates from an input voltage of +6V to +40V under normal operating conditions and operates down to +3V under a cold crank. It consumes only 18µA of quiescent current at no load on the adjustable version. Features The ISL78307 is available in fixed 3.3V, 5V, and adjustable output voltage (2.5V to 12V) options. It features an EN pin that can be used to put the device into a low-quiescent current shutdown mode where it draws only 1.8µA of supply current. The device features over-temperature shutdown and current limit protection. • 40V tolerant logic level (TTL/CMOS) enable input The ISL78307 is AEC-Q100 qualified. It is rated across the -40°C to +125°C automotive temperature range and is available in an 8 Ld EPSOIC with exposed pad package. • Thermal shutdown and current limit protection • Optimized for “always-on” automotive applications • 18µA typical quiescent current • Ensured 50mA output current • Operates through cold crank down to 3V • 1.8µA of typical shutdown current • Low dropout voltage of 120mV at 50mA • Fixed +3.3V, +5.0V and adjustable output voltage options • Stable operation with 10µF output capacitor • -40°C to +125°C operating temperature range • Thermally enhanced 8 Ld exposed pad SOIC package Applications • AEC-Q100 qualified • Automotive • 6kV ESD HBM rated • Industrial • Pb-free (RoHS compliant) • Telecom Related Literature For a full list of related documents, visit our website • ISL78307 product page VIN = 14V CIN 0.1µF R1 EN (ISL78307) VIN = 14V VOUT = 12V OUT IN COUT 10µF OUT IN COUT 10µF CIN 0.1µF ADJ VOUT = 5V EN (ISL78307) R2 GND GND FIGURE 1. TYPICAL APPLICATION - ADJ VERSION FIGURE 2. TYPICAL APPLICATION - FIXED VERSION 70 QUIESCENT CURRENT (µA) 60 LOAD = 50mA 50 40 30 20 LOAD = 0mA 10 0 -50 0 50 100 150 TEMPERATURE (°C) FIGURE 3. QUIESCENT CURRENT vs LOAD CURRENT (ADJ VERSION AT UNITY GAIN). VIN = 14V FN7658 Rev.4.00 Aug 8, 2019 Page 1 of 11 ISL78307 Block Diagram VIN EN CONTROL LOGIC + THERMAL SENSOR EA FET DRIVER WITH CURRENT LIMIT REFERENCE + SOFT-START VOUT ADJ GND Pin Configuration ISL78307 (8 LD EPSOIC) TOP VIEW IN 1 8 OUT NC 2 7 ADJ/NC NC 3 6 NC EN 4 5 GND Pin Descriptions PIN NUMBER PIN NAME 1 IN Input voltage pin. A minimum 0.1µF X5R/X7R capacitor is required for proper operation. 2, 3, 6 NC Pins have internal termination and can be left unconnected. Connection to ground is optional. 4 EN High on this pin enables the device. 5 GND 7 ADJ/NC 8 OUT EPAD FN7658 Rev.4.00 Aug 8, 2019 DESCRIPTION Ground pin. In the adjustable output voltage option, this pin is connected to the external feedback resistor divider which sets the LDO output voltage. In the 3.3V and 5V options, this pin is not used and can be connected to ground. Regulated output voltage. A 10µF X5R/X7R output capacitor is required for stability. It is recommended to solder the EPAD to the ground plane. Page 2 of 11 ISL78307 Ordering Information PART NUMBER (Notes 2, 3) PART MARKING TEMP. RANGE (°C) ENABLE PIN OUTPUT VOLTAGE (V) TAPE AND REEL (UNITS) (Note 1) PACKAGE (RoHS Compliant) PKG. DWG. # ISL78307FBEAZ 78307 FBEAZ -40 to +125 Yes 3.3 - 8 Ld EPSOIC M8.15B ISL78307FBEAZ-T 78307 FBEAZ -40 to +125 Yes 3.3 2.5k 8 Ld EPSOIC M8.15B ISL78307FBEAZ-T7A 78307 FBEAZ -40 to +125 Yes 3.3 250 8 Ld EPSOIC M8.15B ISL78307FBEBZ 78307 FBEBZ -40 to +125 Yes 5.0 - 8 Ld EPSOIC M8.15B ISL78307FBEBZ-T 78307 FBEBZ -40 to +125 Yes 5.0 2.5k 8 Ld EPSOIC M8.15B ISL78307FBEBZ-T7A 78307 FBEBZ -40 to +125 Yes 5.0 250 8 Ld EPSOIC M8.15B ISL78307FBECZ 78307 FBECZ -40 to +125 Yes ADJ - 8 Ld EPSOIC M8.15B ISL78307FBECZ-T 78307 FBECZ -40 to +125 Yes ADJ 2.5k 8 Ld EPSOIC M8.15B ISL78307FBECZ-T7A 78307 FBECZ -40 to +125 Yes ADJ 250 8 Ld EPSOIC M8.15B NOTES: 1. See TB347 for details about reel specifications. 2. These Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J-STD-020. 3. For Moisture Sensitivity Level (MSL), see the ISL78307 device page. For more information about MSL, see TB363. FN7658 Rev.4.00 Aug 8, 2019 Page 3 of 11 ISL78307 Absolute Maximum Ratings Thermal Information Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +45V IN Pin to GND Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to VCC OUT Pin to GND Voltage . . . . . . . . . . . . . . . . . . . . . . . . .. . .GND - 0.3V to 16V EN Pin to GND Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to VCC Output Short-Circuit Duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Indefinite ESD Rating Human Body Model (Tested per JESD22-A114E) . . . . . . . . . . . . . . . . 6kV Machine Model (Tested per JESD-A115-A) . . . . . . . . . . . . . . . . . . . 350V Charge Device Model (Tested per AEC-Q100-011) . . . . . . . . . . . . . 2.2kV Latch-Up (Tested per JESD78B; Class II, Level A) . . . . . . . . . . . . . . . 100mA Thermal Resistance (Typical) JA (°C/W) JC (°C/W) 8 Ld EPSOIC Package (Notes 4, 5) . . . . . . . 50 9 Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C Maximum Storage Temperature Range . . . . . . . . . . . . . .-65°C to +175°C Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see TB493 Recommended Operating Conditions Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . -40°C to +125°C IN Pin to GND Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+3V to +40V OUT Pin to GND Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+2.5V to +12V EN Pin to GND Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0V to +40V CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions can adversely impact product reliability and result in failures not covered by warranty. NOTES: 4. JA is measured in free air with the component mounted on a high-effective thermal conductivity test board with “direct attach” features. See TB379. 5. For JC, the “case temp” location is the center of the exposed metal pad on the package underside. Electrical Specifications Recommended Operating Conditions, unless otherwise noted. VIN = 14V, IOUT = 1mA, CIN = 0.1μF, COUT = 10μF, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical specifications are at TA = +25°C. Boldface limits apply across the operating temperature range, -40°C to +125°C. PARAMETER Input Voltage Range SYMBOL TEST CONDITIONS VIN V Cold Crank condition 3 40 V 50 VIN = VOUT + VDO Output Voltage VOUT EN = High VIN = 14V IOUT = 0.1mA mA 3.3V version 3.267 3.3 3.333 V 5V version 4.950 5 5.050 V ADJ pin voltage 1.211 1.223 1.235 V 0.04 0.115 % 0.25 0.5 % IOUT = 1mA, VOUT = 3.3V 10 38 mV IOUT = 50mA, VOUT = 3.3V 130 340 mV Line Regulation VOUT/VIN Load Regulation VOUT/IOUT VIN = VOUT +VDO IOUT = 100µA to 50mA 3V  VIN  40V IOUT = 1mA IOUT = 1mA, VOUT = 5V 10 48 mV IOUT = 50mA, VOUT = 5V 120 350 mV 1.8 3.64 µA Shutdown Current ISHDN EN = LOW Quiescent Current IQ EN = High VIN = 14V FN7658 Rev.4.00 Aug 8, 2019 MAX (Note 8) UNIT 40 IOUT VDO TYP 6 Guaranteed Output Current Dropout Voltage (Note 6) MIN (Note 8) IOUT = 0mA, ADJ version, VOUT = VADJ 18 24 µA IOUT = 1mA, ADJ version, VOUT = VADJ 22 42 µA IOUT = 10mA, ADJ version, VOUT = VADJ 34 60 µA IOUT = 50mA, ADJ version, VOUT = VADJ 56 82 µA IOUT = 0, 3.3V and 5.0V version 22 28 µA IOUT = 1mA, 3.3V and 5.0V version 27 45 µA IOUT = 10mA, 3.3V and 5.0V version 37 65 µA IOUT = 50mA, 3.3V and 5.0V version 62 90 µA Page 4 of 11 ISL78307 Electrical Specifications Recommended Operating Conditions, unless otherwise noted. VIN = 14V, IOUT = 1mA, CIN = 0.1μF, COUT = 10μF, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical specifications are at TA = +25°C. Boldface limits apply across the operating temperature range, -40°C to +125°C. (Continued) PARAMETER Power Supply Rejection Ratio SYMBOL TEST CONDITIONS PSRR f = 100Hz; Vin_ripple = 500mVP-P; load = 50mA VEN_H VOUT = Off to On VEN_L VOUT = On to Off MIN (Note 8) TYP MAX (Note 8) UNIT 58 dB EN FUNCTION EN Threshold Voltage EN Pin Current IEN EN to Regulation Time (Note 7) tEN 1.485 0.935 VOUT = 0V V V 0.026 1.65 µA 1.93 ms PROTECTION FEATURES Output Current Limit ILIMIT VOUT = 0V Thermal Shutdown TSHDN Junction temperature rising Thermal Shutdown Hysteresis THYST 60 118 mA +165 °C +20 °C NOTES: 6. Dropout voltage is defined as (VIN - VOUT) when VOUT is 2% below the value of VOUT when VIN = VOUT + 3V. 7. Enable to Regulation is the time the output takes to reach 95% of its final value with VIN = 14V and EN is taken from VIL to VIH in 5ns. For the adjustable versions, the output voltage is set at 5V. 8. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization and are not production tested. FN7658 Rev.4.00 Aug 8, 2019 Page 5 of 11 ISL78307 Typical Performance Curves VIN = 14V, IOUT = 1mA, VOUT = 5V, TJ = +25 °C unless otherwise specified. 80 30 +125°C QUIESCENT CURRENT (µA) QUIESCENT CURRENT (µA) 70 60 50 40 +25°C 30 -40°C 20 10 0 0 10 20 30 40 20 +25°C 10 5 0 10 LOAD CURRENT (mA) FIGURE 4. QUIESCENT CURRENT vs LOAD CURRENT 20 INPUT VOLTAGE (V) 30 0.010 % OUTPUT VOLTAGE VARIATION 2.5 VIN = 40V 2.0 1.5 VIN = 14V 1.0 0.5 0 -50 0 50 100 150 TEMPERATURE (°C) 0.005 5V OPTION 0 -0.005 -0.010 -50 3.3V OPTION 0 50 100 TEMPERATURE (°C) FIGURE 6. SHUTDOWN CURRENT vs TEMPERATURE (EN = 0) FIGURE 7. OUTPUT VOLTAGE vs TEMPERATURE (LOAD = 50mA) 5.100 OUTPUT VOLTAGE (V) 5.075 EN at 500mV/DIV 5.050 +125°C +25°C 5.025 5.000 -40°C 4.975 4.950 VOUT at 1V/DIV 4.925 TIME at 500µs/DIV 4.900 40 FIGURE 5. QUIESCENT CURRENT vs INPUT VOLTAGE (NO LOAD) 3.0 SHUTDOWN CURRENT (µA) -40°C 15 0 50 +125°C 25 0 10 20 30 40 50 LOAD CURRENT (mA) FIGURE 8. OUTPUT VOLTAGE vs LOAD CURRENT FN7658 Rev.4.00 Aug 8, 2019 FIGURE 9. START-UP WAVEFORM Page 6 of 11 150 ISL78307 Typical Performance Curves VIN = 14V, IOUT = 1mA, VOUT = 5V, TJ = +25 °C unless otherwise specified. (Continued) 70 60 VOUT = 3.3V PSRR (dB) 50 40 VOUT at 100mV/DIV VOUT = 5V 30 50mA 20 IOUT at 0mA 10 0 100 TIME at 5ms/DIV 1k 10k 100k 1M FREQUENCY (Hz) FIGURE 10. POWER SUPPLY REJECTION RATIO (LOAD = 50mA) FN7658 Rev.4.00 Aug 8, 2019 FIGURE 11. LOAD TRANSIENT RESPONSE Page 7 of 11 ISL78307 Functional Description Output Voltage Setting Functional Overview For the adjustable version of the ISL78307, the output voltage is programmed using an external resistor divider as shown in Figure 12. The ISL78307 is a high performance, high voltage, low-dropout regulator (LDO) with 50mA sourcing capability. The part is qualified to operate over the -40°C to +125°C automotive temperature range. Featuring ultra-low quiescent current, it makes an ideal choice for “always-on” automotive applications. It works well under a “load-dump condition” where the input voltage could rise up to 40V. The LDO continues to operate down to 3V under a “cold-crank” condition. The device also features current limit and thermal shutdown protection. Enable Control The ISL78307 features an enable pin. When it is pulled low, the IC goes to a shutdown mode. In this condition, the device draws less than 2µA. Driving the pin high turns the device on. Current Limit Protection The ISL78307 has internal current limit functionality to protect the regulator during fault conditions. During current limit, the output sources a fixed amount of current largely independent of the output voltage. If the short or overload is removed from VOUT, the output returns to normal voltage regulation mode. Thermal Fault Protection In the event the die temperature exceeds typically +165°C, the output of the LDO will shut down until the die temperature cools down to typically +145°C. The level of power dissipated, combined with the ambient temperature and the thermal impedance of the package determine if the junction temperature exceeds the thermal shutdown temperature. See section on “Power Dissipation”. Application Information Input and Output Capacitors For the output, a ceramic capacitor (X5R or X7R) with a capacitance of 10µF is recommended for the ISL78307 to maintain stability. The ground connection of the output capacitor should be routed directly to the GND pin of the device and also placed close to the IC. A minimum of 0.1µF (X5R or X7R) is recommended at the input. FN7658 Rev.4.00 Aug 8, 2019 OUT IN CIN 0.1µF COUT 10µF R1 EN (ISL78307) ADJ R2 GND FIGURE 12. ADJUSTABLE VERSION The output voltage is calculated using Equation 1: R  V OUT = 1.223V   ------1- + 1  R2  (EQ. 1) Power Dissipation The junction temperature must not exceed the range specified in “Recommended Operating Conditions” on page 4. The power dissipation can be calculated using Equation 2: P D =  V IN – V OUT   I OUT + V IN  I GND (EQ. 2) The maximum allowable junction temperature, TJ(MAX) and the maximum expected ambient temperature, TA(MAX) determine the maximum allowable junction temperature rise (TJ), as shown in Equation 3: T J = T J  MAX  – T A  MAX  (EQ. 3) To calculate the maximum ambient operating temperature, use the junction-to-ambient thermal resistance (JA) as shown in Equation 4: T J  MAX  = P D  MAX  x  JA + T A (EQ. 4) Board Layout Recommendations A good PCB layout is important to achieve expected performance. Consideration should be taken when placing the components and routing the trace to minimize the ground impedance, and keep the parasitic inductance low. The input and output capacitors should have a good ground connection and be placed as close to the IC as possible. The feedback trace in the adjustable version should be away from other noisy traces. Connect EPAD to the ground plane for better heat dissipation. Thermal vias on the EPAD increase heat dissipation. Page 8 of 11 ISL78307 Revision History The revision history provided is for informational purposes only and is believed to be accurate, but not warranted. Please go to web to make sure you have the latest Rev. DATE REVISION Aug 8, 2019 FN6705.4 Updated links throughout document. Added Related Literature section. Updated ordering information table by adding tape and reel versions and updating notes. Removed About Intersil section. Updated POD to the latest revision changes are as follows: -Replace the graphics with standard format (removing the dimension table). -Updated L Millimeter minimum in detail A from 0.41 to 0.406. -Updated the following in the Side View: -Changed total package height Millimeter MIN and MAX values from: 1.43 MIN and 1.68 MAX to: 1.422 MIN and 1.700 MAX and Inches max from 0.066 to 0.067. -Changed A1 Inches MIN from: 0.001 to 0.0, and A1 Millimeters MIN from 0.03 to 0.0 Updated Disclaimer. Apr 7, 2015 FN6705.3 “Absolute Maximum Ratings” on page 4,Charged device Model(tested per JESD22-C101C)....2.2kV to Charged device Model(tested per AEC-Q100-011).....2.2kV Dec 7, 2013 FN7658.2 Page 9 - 2nd line of the disclaimer changed from: "Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as noted" to: "Intersil Automotive Qualified products are manufactured, assembled and tested utilizing TS16949 quality systems as noted". May 13, 2011 FN7658.1 Page 4, Removed the EN Pin Current MAX spec; added TYP spec of 0.026. FN7658 Rev.4.00 Aug 8, 2019 CHANGE Page 9 of 11 ISL78307 Package Out Line Drawing For the most recent package outline drawing, see M8.15B. M8.15B 8 Lead Narrow Body Small Outline Exposed Pad Plastic Package Rev 7, 5/19 FN7658 Rev.4.00 Aug 8, 2019 Page 10 of 11 1RWLFH  'HVFULSWLRQVRIFLUFXLWVVRIWZDUHDQGRWKHUUHODWHGLQIRUPDWLRQLQWKLVGRFXPHQWDUHSURYLGHGRQO\WRLOOXVWUDWHWKHRSHUDWLRQRIVHPLFRQGXFWRUSURGXFWV DQGDSSOLFDWLRQH[DPSOHV