BCT2038EUK33-TR

BCT2038 Low Power, Low Dropout RF-Linear Regulators BCT2038 Low Power, Low Dropout, RF-Linear Regulators GENERAL DESCRIPTION FEATURES The BCT2038 series low-power, low-dropout, CMOS linear voltage regulators operate from a 1.6V to 5.5V input voltage and deliver up to 500mA output current. They are the perfect choice for low voltage, low power applications. A low ground current makes this part attractive for battery operated power systems. The BCT2038 series also offer low dropout voltage to prolong battery life in portable electronics. Systems requiring a quiet voltage source, such as RF applications, will benefit from the BCT2038 series low output noise and high PSRR.  Low Dropout Voltage  Thermal Overload Protection  Built-In Fold Back Protection Circuit  20μA Low Supply Current  10nA Logic-Controlled Shutdown  1.6V to 5.5V Input Voltage Range  Fixed Outputs of 1.2V, 1.8V, 2.8V, 3.0V,and 3.3V  Adjustable Output from 0.8V to 5.0V  Short Auto-Discharge Function  500mA Output Current Other features include a 10nA logic-controlled shutdown mode, short current limit and thermal shutdown protection. The BCT2038 has auto-discharge function to quickly discharge VOUT in the disable status. The BCT2038 is available in Green SOT23-3, SOT23-5,SC70-5, SOT89-3 packages. It operates over an ambient temperature range of -40℃ to +85°C .  High Output Voltage Accuracy  Quick Start-Up Time  -40℃ to +85℃ Operating Temperature Range Available in Green SOT23-3,SOT23-5, SC70-5, SOT89-3 Packages. APPLICATIONS Cellular Telephones Cordless Telephones PCMCIA Cards Modems MP3 Player Hand-Held Instruments Palmtop Computers Electronic Planners Portable/Battery-Powered Equipment REV1.4 www.broadchip.com Copyright © BROADCHIP TECHNOLOGY CO., LTD 1 BCT2038 Low Power, Low Dropout RF-Linear Regulators ORDERING INFORMATION Order Number VOUT(V) Package Type Temperature Range Marking QTY/Reel BCT2038EUR12-TR 1.2 SOT23-3 -40°C to +85°C U2XX 3000 BCT2038EUR18-TR 1.8 SOT23-3 -40°C to +85°C 3000 BCT2038EUR28-TR 2.8 SOT23-3 -40°C to +85°C U8XX _ U8XX BCT2038EUR30-TR 3.0 SOT23-3 -40°C to +85°C U0XX 3000 BCT2038EUR33-TR 3.3 SOT23-3 -40°C to +85°C U3XX 3000 BCT2038EUK12-TR 1.2 SOT23-5 -40°C to +85°C U2XX 3000 BCT2038EUK18-TR 1.8 SOT23-5 -40°C to +85°C 3000 BCT2038EUK28-TR 2.8 SOT23-5 -40°C to +85°C U8XX _ U8XX BCT2038EUK30-TR 3.0 SOT23-5 -40°C to +85°C U0XX 3000 BCT2038EUK33-TR 3.3 SOT23-5 -40°C to +85°C U3XX 3000 BCT2038EUKAJ-TR ADJ SOT23-5 -40°C to +85°C UJXX 3000 BCT2038EXK12-TR 1.2 SC70-5 -40°C to +85°C U2XX 3000 BCT2038EXK18-TR 1.8 SC70-5 -40°C to +85°C 3000 BCT2038EXK28-TR 2.8 SC70-5 -40°C to +85°C U8XX _ U8XX BCT2038EXK30-TR 3.0 SC70-5 -40°C to +85°C U0XX 3000 BCT2038EXK33-TR 3.3 SC70-5 -40°C to +85°C U3XX 3000 BCT2038EXKAJ-TR ADJ SC70-5 -40°C to +85°C UJXX 3000 BCT2038EJR12-TR 1.2 SOT89-3 -40°C to +85°C BCT2038EJR18-TR 1.8 SOT89-3 -40°C to +85°C BCT2038EJR28-TR 2.8 SOT89-3 -40°C to +85°C BCT2038EJR30-TR 3.0 SOT89-3 -40°C to +85°C BCT2038EJR33-TR 3.3 SOT89-3 -40°C to +85°C 2038 12XXX 2038 18XXX 2038 28XXX 2038 30XXX 2038 33XXX 3000 3000 3000 3000 3000 3000 3000 3000 Note: "U in Marking is product short code for BCT2038 "XXX" in Marking will be appeared as the batch code. REV1.4 www.broadchip.com Copyright © BROADCHIP TECHNOLOGY CO., LTD 2 BCT2038 Low Power, Low Dropout RF-Linear Regulators ABSOLUTE MAXIMUM RATINGS OVERSTRESS CAUTION Stresses beyond those listed under “Absolute Maximum Ratings” IN to GND......................................................-0.3V to 6.0V may cause permanent damage to the device. These are stress Output Short-Circuit Duration....................................Infinite ratings only, and functional operation of the device at these or any EN to GND……………....................................-0.3V to 6.0V other conditions beyond those indicated in the operational OUT,BP/FB to GND............................-0.3V to (VIN +0.3V) sections of the specifications is not implied. Exposure to absolute Power Dissipation, PD@TA=25℃ maximum rating conditions for extended periods may affect device SOT23-3....................................................................0.42W reliability. SOT23-5....................................................................0.48W SC70-5......................................................................0.38W SOT89-3………........................................................ 1.25W ESD SENSITIVITY CAUTION Package Thermal Resistance SOT23-3................................................................300℃/W This integrated circuit can be damaged by ESD if you don’t SOT23-5, θJA.........................................................260℃/W pay attention to ESD protection. Broadchip recommends SC70-5, θJA...........................................................330℃/W that all integrated circuits be handled with appropriate SOT89-3, θJA …............................................ .......100℃/W precautions. Failure to observe proper handling and Junction Temperature................................................150℃ installation procedures can cause damage. ESD damage Storage Temperature Range.......................-65℃ to 150℃ can range from subtle performance degradation to Lead Temperature (Soldering, 10 sec)......................260℃ complete device failure. Precision integrated circuits may ESD Susceptibility be more susceptible to damage because very small HBM..........................................................................4000V parametric changes could cause the device not to meet its MM..............................................................................400V published specifications. RECOMMENDED OPERATING CONDITIONS DISCLAIMER Broadchip reserves the right to make any change in circuit Operating Voltage Range.........................................1.6V to 5.5V design, specification or other related things if necessary Operating Temperature Range ............................-40℃ to +85℃ without notice at any time. Please contact Broadchip sales office to get the latest datasheet. REV1.4 www.broadchip.com Copyright © BROADCHIP TECHNOLOGY CO., LTD 3 BCT2038 Low Power, Low Dropout RF-Linear Regulators PIN CONFIGURATION (TOP VIEW) GND 1 2 GND 2 EN 3 SOT23-3 5 OUT 4 GND 1 IN 2 BP/FB OUT MARKING IN 1 MARKING MARKING OUT 3 IN 3 SOT89-3 SOT23-5/SC70-5 PIN DESCRIPTION PIN SOT23-3 NAME SOT23-5 SOT89-3 SC70-5 FUNCTION 1 2 1 GND Ground. 2 5 3 OUT Regulator Output. 3 1 2 IN Regulator Input. Supply voltage can range from 1.6V to 5.5V. Bypass with a 1μF capacitor to GND. EN Enable Pin. This pin has an internal pull-down resistor. A logic low reduces the supply current to less than 1μA Connect to IN for normal operation. BP Reference-Noise Bypass Pin (fixed voltage version only). Bypass with a low-leakage 0.01μF ceramic capacitor for reduced noise at the output. The capacitor is recommended to be placed very close to the pin for high PSRR. FB Adjustable Voltage Version Only. This is used to set the output voltage of the device. - - 3 4 - - REV1.4 www.broadchip.com Copyright © BROADCHIP TECHNOLOGY CO., LTD 4 BCT2038 Low Power, Low Dropout RF-Linear Regulators ELECTRICAL CHARACTERISTICS (VIN= VOUT(NOMINAL)+0.5V or 1.6V, whichever is greater, Full = -40℃ to +85℃, unless otherwise noted.) PARAMETER Input Voltage SYMBOL TEMP MIN +25℃ IOUT = 0.1mA IOUT = 0.1mA, BCT2038-ADJ VIN Output Voltage Accuracy Feedback Voltage CONDITIONS VFB Maximum Output Current (1) Current Limit Ground Pin Current Dropout Voltage (2) Line Regulation ILIM IQ VDROP VOUT VIN VOUT No Load, VEN = VIN UNITS 1.6 5.5 V +25℃ -2.5 +2.5 % +25℃ 0.78 0.82 V +25℃ 500 +25℃ 560 0.8 mA 800 mA 20 26 1.2V ≤ VOUT < 1.8V +25℃ 945 1280 1.8V ≤ VOUT < 2.5V +25℃ 510 670 2.5V ≤ VOUT < 3.0V +25℃ 345 450 3.0V ≤ VOUT < 3.6V +25℃ 305 400 1.8V ≤ VOUT ≤ 3.3V +25℃ 0.01 0.06 +25℃ 0.01 0.1 40 VIN = 1.6V or (VOUT + IOUT = 1mA MAX +25℃ IOUT = 500mA 0.5V) to 5.5V, TYP µA mV %/V VOUT < 1.8V or VOUT > 3.3V Load Regulation ΔVOUT IOUT = 0.1mA to 500mA +25℃ 12 Short Current Limit ISHORT VOUT = 0V +25℃ 320 f = 217Hz +25℃ 80 f = 1kHz +25℃ 70 mV mA CBP = 0µF, IOUT = 30mA, COUT = 1μF, VIN = 2.8V, VOUT = 1.8V , ∆VRIPPLE = 0.2VP-P Power Supply Rejection Ratio PSRR dB CBP = 0.01μF, IOUT = 30mA, COUT = 1μF, VIN = 2.8V, f = 217Hz +25℃ 82 f = 1kHz +25℃ 75 IOUT = 0mA +25℃ 70 IOUT = 30mA +25℃ 100 IOUT = 0mA +25℃ 25 IOUT = 30mA +25℃ 65 VOUT = 1.8V , ∆VRIPPLE = 0.2VP-P CBP = 0µF, f = 10Hz to 100kHz,COUT = 1µF, VIN = 2.8V,VOUT = 1.8V Output Voltage Noise en µVRMS CBP = 0.01µF, f = 10Hz to 100kHz, COUT = 1µF, VIN = 2.8V, VOUT = 1.8V Output Voltage Temperature Coefficient (3) VOUT TA VOUT IOUT = 0.1mA Full 30 ppm/℃ REV1.4 www.broadchip.com Copyright © BROADCHIP TECHNOLOGY CO., LTD 5 BCT2038 Low Power, Low Dropout RF-Linear Regulators ELECTRICAL CHARACTERISTICS (VIN= VOUT(NOMINAL)+0.5V or 1.6V, whichever is greater, Full = -40℃ to +85℃, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS TEMP MIN Full 1.5 TYP MAX UNITS SHUTDOWN EN Input Threshold VIH V VIN = 1.6V to 5.5V VIL Full 0.4 IBH VEN = 5.5V Full 0.8 2 IBL VEN = 0V Full 0.01 1 Shutdown Supply Current ISHDN VEN = 0V Full 0.01 1 Start-Up Time (4) tSTR COUT = 1μF, No Load, CBP = 0µF +25℃ 30 µs VIN = 4.0V, VEN = 0V +25℃ 50 Ω TSHDN 140 ℃ ΔTSHDN 15 ℃ EN Input Bias Current µA RON of Discharge MOSFET µA THERMAL PROTECTION Thermal Shutdown Temperature Thermal Shutdown Hysteresis NOTES: 1. Maximum output current is affected by the PCB layout, size of metal trace, the thermal conduction path between metal layers, ambient temperature and the other environment factors of system. Attention should be paid to the dropout voltage when VIN < VOUT + VDROP. 2. The dropout voltage is defined as VIN - VOUT, when VOUT is 100mV below the value of VOUT. 3. Output voltage temperature coefficient is defined as the worst-case voltage change divided by the total temperature range. 4. Time needed for VOUT to reach 90% of final value. REV1.4 www.broadchip.com Copyright © BROADCHIP TECHNOLOGY CO., LTD 6 BCT2038 Low Power, Low Dropout RF-Linear Regulators TYPICAL APPLICATION CIRCUIT INPUT 1.6V to 5.5V 1 VOUT IN OUTPUT 5 COUT 1uF BCT2038 3 EN OFF CBP 0.01uF OUTPUT CIN 1uF COUT 1uF BCT2038 ADJ 3 ON OFF GND SOT23-3/SOT89-3 5 VOUT IN COUT 1uF 4 GND BP SOT23-5/SC70-5 1 CIN 1uF BCT2038 2 INPUT 1.6V to 5.5V OUTPUT VOUT IN CIN 1uF ON INPUT 1.6V to 5.5V EN R1 4 GND FB 2 R2 SOT23-5/SC70-5 NOTES: Choose R2 = 160kΩ to maintain a 5μA minimum load. Calculate the value for R1 using the following equation: V  R 1  R 2   OUT - 1  0.8V  REV1.4 www.broadchip.com Copyright © BROADCHIP TECHNOLOGY CO., LTD 7 BCT2038 Low Power, Low Dropout RF-Linear Regulators TYPICAL PERFORMANCE CHARACTERISTICS VEN = VIN, CIN = 1μF, COUT = 1μF, CBP = 0µF ,TA = +25℃, unless otherwise noted. Output Voltage vs. Input Voltage Output Voltage（V） 4 3.5 3 2.5 2 1.5 1 0.5 0 Output Voltage（V） Output Voltage vs. Input Voltage IOUT=0.1mA VOUT=1.8V 0 1 2 3 4 5 4 3.5 3 2.5 2 1.5 1 0.5 0 IOUT=0.1mA VOUT=3.3V 0 6 3 4 5 6 30 Supply Pin Current（uA） 30 Supply Pin Current（uA） 2 Supply Pin Current vs.Input Voltage Supply Pin Current vs. Input Voltage 25 20 15 10 IOUT=0mA VOUT=1.8V 5 25 20 15 10 IOUT=0mA VOUT=3.3V 5 0 0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Input Voltage（V） Input Voltage（V） Dropout Voltage vs. Output Current Dropout Voltage vs. Output Current 500 500 VOUT=1.8V 400 Dropout Voltage（mV） Dropout Voltage（mV） 1 Input Voltage（V） Input Voltage（V） 300 200 100 0 VOUT=3.3V 400 300 200 100 0 0 100 200 300 400 Output Current（mA） 500 0 100 200 300 400 500 Output Current（mA） REV1.4 www.broadchip.com Copyright © BROADCHIP TECHNOLOGY CO., LTD 8 BCT2038 Low Power, Low Dropout RF-Linear Regulators TYPICAL PERFORMANCE CHARACTERISTICS（continued） VEN = VIN, CIN = 1μF, COUT = 1μF, CBP = 0µF ,TA = +25℃, unless otherwise noted. Ground Pin Current vs. Output Current Ground Pin Current vs. Output Current 300 VIN=2.8V 250 Ground Pin Current（uA） Ground Pin Current（uA） 300 VOUT=1.8V 200 150 100 50 0 VIN=4.3V 250 VOUT=3.3V 200 150 100 50 0 0 100 200 300 400 500 0 100 Output Current（mA） Power Supply Rejection Ratio vs. Frequency 400 500 100 CBP=0.01uF 60 40 VIN=2.8V IOUT=30mA VOUT=1.8V 20 CBP=0.01uF 80 PSRR（dB） 80 CBP=0uF 60 40 VIN=4.3V IOUT=30mA VOUT=3.3V 20 0 CBP=0uF 0 0.01 0.1 1 10 100 0.01 0.1 Frequency（KHz） 1 10 100 Frequency（KHz） Output Voltage vs. Temperature Output Voltage vs. Temperature 1.810 3.315 VIN=2.3V IOUT=1mA VOUT=1.8V 1.807 1.804 Outpt Voltage（V） Outpt Voltage（V） 300 Power Supply Rejection Ratio vs. Frequency 100 PSRR（dB） 200 Output Current（mA） 1.801 1.798 1.795 VIN=3.8V IOUT=1mA VOUT=3.3V 3.311 3.307 3.303 3.299 3.295 -40 -15 10 35 60 85 -40 -15 Temperature（℃） 10 35 60 85 Temperature（℃） REV1.4 www.broadchip.com Copyright © BROADCHIP TECHNOLOGY CO., LTD 9 BCT2038 Low Power, Low Dropout RF-Linear Regulators TYPICAL PERFORMANCE CHARACTERISTICS（continued） VEN = VIN, CIN = 1μF, COUT = 1μF, CBP = 0µF ,TA = +25℃, unless otherwise noted. Start up from EN（VOUT=3.3V） Start up from EN（VOUT=1.8V） VEN VOUT VIN=4.3V 2V/div VIN=2.8V 1V/div VOUT 2V/div 2V/div VEN IOUT=0mA IOUT=0mA Time 20us/div Time 20us/div Shutdown from EN（VOUT=3.3V） Shutdown from EN（VOUT=1.8V） VEN 2V/div 2V/div VEN VOUT VOUT VIN=4.3V IOUT=0mA IOUT=0mA Time 40us/div Time 40us/div REV1.4 www.broadchip.com Copyright © BROADCHIP TECHNOLOGY CO., LTD 10 2V/div 1V/div VIN=2.8V BCT2038 Low Power, Low Dropout RF-Linear Regulators TYPICAL PERFORMANCE CHARACTERISTICS（continued） VEN = VIN, CIN = 1μF, COUT = 1μF, CBP = 0µF ,TA = +25℃, unless otherwise noted. Line Transient Response（VOUT=3.3V） Line Transient Response（VOUT=1.8V） VIN VIN=4.3V to 5.3V IOUT=50mA VOUT Time 40us/div Time 40us/div Load Transient Response（VOUT=1.8V） Load Transient Response（VOUT=3.3V） VIN=2.8V VIN=4.3V VOUT VOUT 200mA/div 200mA/div IOUT IOUT=1mA to 500mA 200mV/div 200mV/div IOUT=1mA to 500mA IOUT Time 100us/div Time 100us/div Load Transient Response（VOUT=1.8V） Load Transient Response（VOUT=3.3V） VIN=4.3V 100mV/div IOUT=50mA to 300mA VOUT IOUT=50mA to 300mA VOUT 100mA/div 100mA/div IOUT 100mV/div VIN=2.8V IOUT Time 100us/div Time 100us/div REV1.4 www.broadchip.com 50mV/div IOUT=50mA VOUT 50mV/div VIN=2.8V to 3.8V 1V/div 1V/div VIN Copyright © BROADCHIP TECHNOLOGY CO., LTD 11 BCT2038 Low Power, Low Dropout RF-Linear Regulators PACKAGE OUTLINE DIMENSIONS SOT23-3 Symbol A Dimensions In Millimeters Min Max 2.82 3.02 e 0.95(BSC) b 0.28 0.45 B 1.50 1.70 B1 2.75 3.05 C 1.05 1.15 C1 0.03 0.15 C2 0.12 0.23 L 0.35 0.55 θ 0° 8° SOT23-3 Surface Mount Package REV1.4 www.broadchip.com Copyright © BROADCHIP TECHNOLOGY CO., LTD 12 BCT2038 Low Power, Low Dropout RF-Linear Regulators SOT23-5 Symbol Dimensions In Millimeters Min Max A 1.05 1.15 A1 0.03 0.15 B 1.5 1.7 b 0.28 0.45 C 2.75 3.05 D 2.82 3.02 e 0.95(BSC) H 0.12 0.23 L 0.35 0.55 SOT23-5 Surface Mount Package REV1.4 www.broadchip.com Copyright © BROADCHIP TECHNOLOGY CO., LTD 13 BCT2038 Low Power, Low Dropout RF-Linear Regulators SC70-5 SC70-5 Surface Mount Package REV1.4 www.broadchip.com Copyright © BROADCHIP TECHNOLOGY CO., LTD 14 BCT2038 Low Power, Low Dropout RF-Linear Regulators SOT89-3 SOT89-3 Surface Mount Package REV1.4 www.broadchip.com Copyright © BROADCHIP TECHNOLOGY CO., LTD 15 BCT2038 Low Power, Low Dropout RF-Linear Regulators LAND PATTERN DATA SOT23-5 RECOMMENDED PCB LAYOUT PATTERN (Unit: mm) REV1.4 www.broadchip.com Copyright © BROADCHIP TECHNOLOGY CO., LTD 16 BCT2038 Low Power, Low Dropout RF-Linear Regulators SOT23-3 RECOMMENDED PCB LAYOUT PATTERN (Unit: mm) SC70-5 RECOMMENDED PCB LAYOUT PATTERN (Unit: mm) REV1.4 www.broadchip.com Copyright © BROADCHIP TECHNOLOGY CO., LTD 17 BCT2038 Low Power, Low Dropout RF-Linear Regulators SOT89-3 RECOMMENDED PCB LAYOUT PATTERN (Unit: mm) REV1.4 www.broadchip.com Copyright © BROADCHIP TECHNOLOGY CO., LTD 18