LP38691-Q1 Series

Automotive 500-mA, 10-V, low-dropout voltage regulator

Link to Manufacturer Page: https://www.ti.com/

Catalog

Automotive 500-mA, 10-V, low-dropout voltage regulator

Part	Output Type	Current - Supply (Max) [Max]	Protection Features	Current - Output	PSRR	Voltage - Input (Max) [Max]	Output Configuration	Grade	Number of Regulators	Supplier Device Package	Voltage Dropout (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Qualification	Current - Quiescent (Iq)	Voltage - Output (Min/Fixed)
Texas Instruments LP38691QSDX-2.5/NOPB	27.03 °C/W	100 çA	Over Temperature	500 mA	55 dB	10 V	Positive	Automotive	1	6-WSON (3x3)	0.73 V	125 °C	-40 °C	Surface Mount	AEC-Q100	55 µA	2.5 V
Texas Instruments LP38691QSD-1.8/NOPB	27.03 °C/W	100 çA	Over Temperature	500 mA	55 dB	10 V	Positive	Automotive	1	6-WSON (3x3)		125 °C	-40 °C	Surface Mount	AEC-Q100	55 µA	1.8 V
Texas Instruments LP38691QSD-5.0/NOPB	27.03 °C/W	100 çA	Over Temperature	500 mA	55 dB	10 V	Positive	Automotive	1	6-WSON (3x3)	0.45 V	125 °C	-40 °C	Surface Mount	AEC-Q100	55 µA	5 V
Texas Instruments LP38691QSDX-1.8/NOPB	27.03 °C/W	100 çA	Over Temperature	500 mA	55 dB	10 V	Positive	Automotive	1	6-WSON (3x3)		125 °C	-40 °C	Surface Mount	AEC-Q100	55 µA	1.8 V
Texas Instruments LP38691QSDX-5.0/NOPB	27.03 °C/W	100 çA	Over Temperature	500 mA	55 dB	10 V	Positive	Automotive	1	6-WSON (3x3)	0.45 V	125 °C	-40 °C	Surface Mount	AEC-Q100	55 µA	5 V
Texas Instruments LP38691QSD-3.3/NOPB	27.03 °C/W	100 çA	Over Temperature	500 mA	55 dB	10 V	Positive	Automotive	1	6-WSON (3x3)	0.55 V	125 °C	-40 °C	Surface Mount	AEC-Q100	55 µA	3.3 V
Texas Instruments LP38691QSDX-3.3/NOPB	27.03 °C/W	100 çA	Over Temperature	500 mA	55 dB	10 V	Positive	Automotive	1	6-WSON (3x3)	0.55 V	125 °C	-40 °C	Surface Mount	AEC-Q100	55 µA	3.3 V

Key Features

• Wide Input Voltage Range (2.7 V to 10 V)All WSON Options are Available as AEC-Q100 Grade 12% Output Accuracy (25°C)Low Dropout Voltage: 250 mV at 500 mA (Typical,5 V Out)Precision (Trimmed) Bandgap ReferenceEnsured Specifications for –40°C to 125°C1-µA Off-State Quiescent CurrentThermal Overload ProtectionFoldback Current LimitingGround Pin Current: 55 µA (typical) at full loadEnable Pin (LP38693)Wide Input Voltage Range (2.7 V to 10 V)All WSON Options are Available as AEC-Q100 Grade 12% Output Accuracy (25°C)Low Dropout Voltage: 250 mV at 500 mA (Typical,5 V Out)Precision (Trimmed) Bandgap ReferenceEnsured Specifications for –40°C to 125°C1-µA Off-State Quiescent CurrentThermal Overload ProtectionFoldback Current LimitingGround Pin Current: 55 µA (typical) at full loadEnable Pin (LP38693)

Description

The LP3869x low-dropout CMOS linear regulators provide tight output tolerance (2% typical), extremely low dropout voltage (250 mV at 500-mA load current, VOUT= 5 V), and excellent AC performance using ultralow equivalent series resistance (ESR) ceramic output capacitors. The low thermal resistance of the WSON, SOT-223, and TO-252 packages allow use of the full operating current even in high ambient temperature environments. The use of a PMOS power transistor means that no DC base-drive current is required to bias it, thus allowing ground pin current to remain below 100 µA regardless of load current, input voltage, or operating temperature. The LP3869x low-dropout CMOS linear regulators provide tight output tolerance (2% typical), extremely low dropout voltage (250 mV at 500-mA load current, VOUT= 5 V), and excellent AC performance using ultralow equivalent series resistance (ESR) ceramic output capacitors. The low thermal resistance of the WSON, SOT-223, and TO-252 packages allow use of the full operating current even in high ambient temperature environments. The use of a PMOS power transistor means that no DC base-drive current is required to bias it, thus allowing ground pin current to remain below 100 µA regardless of load current, input voltage, or operating temperature.