Specification	LP38691QSDX-3.3/NOPB

Current - Output	500 mA
Current - Quiescent (Iq)	55 µA
Current - Supply (Max) [Max]	100 çA
Grade	Automotive
Mounting Type	Surface Mount
Number of Regulators	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	1.81 mOhm
Protection Features	Over Temperature
PSRR	55 dB
Qualification	AEC-Q100
Supplier Device Package	6-WSON (3x3)
Voltage - Input (Max) [Max]	10 V
Voltage - Output (Min/Fixed)	3.3 V
Voltage Dropout (Max) [Max]	0.55 V

LP38691-ADJ-Q1 Series

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

Part	Output Type	Output Configuration	Mounting Type	Number of Regulators	Voltage - Input (Max) [Max]	Package / Case	Protection Features	Operating Temperature [Max]	Operating Temperature [Min]	PSRR	Supplier Device Package	Current - Quiescent (Iq)	Voltage - Output (Min/Fixed)	Voltage Dropout (Max) [Max]	Current - Supply (Max) [Max]	Current - Output	Qualification	Grade
Texas Instruments LP38691DT-5.0	1.81 mOhm	Positive	Surface Mount	1	10 V	DPAK (2 Leads + Tab) SC-63 TO-252-3	Over Temperature	125 °C	-40 °C	55 dB	TO-252-3	55 µA	5 V	0.45 V	100 çA	500 mA
Texas Instruments LP38691DTX-5.0/NOPB	1.81 mOhm	Positive	Surface Mount	1	10 V	DPAK (2 Leads + Tab) SC-63 TO-252-3	Over Temperature	125 °C	-40 °C	55 dB	TO-252-3	55 µA	5 V	0.45 V	100 çA	500 mA
Texas Instruments LP38691SDX-1.8/NOPB	1.81 mOhm	Positive	Surface Mount	1	10 V		Over Temperature	125 °C	-40 °C	55 dB	6-WSON (3x3)	55 µA	1.8 V		100 çA	500 mA	AEC-Q100	Automotive
Texas Instruments LP38691SDX-3.3	1.81 mOhm	Positive	Surface Mount	1	10 V		Over Temperature	125 °C	-40 °C	55 dB	6-WSON (3x3)	55 µA	3.3 V	0.55 V	100 çA	500 mA	AEC-Q100	Automotive
Texas Instruments LP38691DT-3.3	1.81 mOhm	Positive	Surface Mount	1	10 V	DPAK (2 Leads + Tab) SC-63 TO-252-3	Over Temperature	125 °C	-40 °C	55 dB	TO-252-3	55 µA	3.3 V	0.55 V	100 çA	500 mA
Texas Instruments LP38691SD-2.5/NOPB	1.81 mOhm	Positive	Surface Mount	1	10 V		Over Temperature	125 °C	-40 °C	55 dB	6-WSON (3x3)	55 µA	2.5 V	0.73 V	100 çA	500 mA	AEC-Q100	Automotive
Texas Instruments LP38691QSDX-3.3/NOPB	1.81 mOhm	Positive	Surface Mount	1	10 V		Over Temperature	125 °C	-40 °C	55 dB	6-WSON (3x3)	55 µA	3.3 V	0.55 V	100 çA	500 mA	AEC-Q100	Automotive
Texas Instruments LP38691QSDX-1.8/NOPB	1.81 mOhm	Positive	Surface Mount	1	10 V		Over Temperature	125 °C	-40 °C	55 dB	6-WSON (3x3)	55 µA	1.8 V		100 çA	500 mA	AEC-Q100	Automotive
Texas Instruments LP38691SD-1.8/NOPB	1.81 mOhm	Positive	Surface Mount	1	10 V		Over Temperature	125 °C	-40 °C	55 dB	6-WSON (3x3)	55 µA	1.8 V		100 çA	500 mA	AEC-Q100	Automotive
Texas Instruments LP38691DT-2.5/NOPB	1.81 mOhm	Positive	Surface Mount	1	10 V	DPAK (2 Leads + Tab) SC-63 TO-252-3	Over Temperature	125 °C	-40 °C	55 dB	TO-252-3	55 µA	2.5 V	0.73 V	100 çA	500 mA

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 1.80
		10	$ 1.61
		25	$ 1.52
		100	$ 1.30
		250	$ 1.22
		500	$ 1.07
		1000	$ 0.88
	Digi-Reel®	1	$ 1.80
		10	$ 1.61
		25	$ 1.52
		100	$ 1.30
		250	$ 1.22
		500	$ 1.07
		1000	$ 0.88
	Tape & Reel (TR)	4500	$ 0.82
		9000	$ 0.79
Texas Instruments	LARGE T&R	1	$ 1.35
		100	$ 1.12
		250	$ 0.80
		1000	$ 0.60

Description

General part information

LP38691-ADJ-Q1 Series

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.

Documents

Technical documentation and resources

LP3869x/-Q1 500-mA Low-Dropout CMOS Linear Regulators Stable With Ceramic Output Capacitors datasheet (Rev. O)

Data sheet