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LP38693QSDX-3.3/NOPB

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

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

LP38693QSDX-3.3/NOPB
Datasheet:

LP38693QSDX-3.3/NOPB Datasheet (PDF)
Output options:

Fixed Output
Iout (max) (A):

0.5
Vin (max) (V):

10
Vin (min) (V):

2.7
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LP38693QSDX-3.3/NOPB General 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, V_OUT = 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.

For all available packages, see the orderable addendum at the end of the data sheet.

Key Features

Wide Input Voltage Range (2.7 V to 10 V)
All WSON Options are Available as AEC-Q100 Grade 1
2% Output Accuracy (25°C)
Low Dropout Voltage: 250 mV at 500 mA (Typical,
5 V Out)
Precision (Trimmed) Bandgap Reference
Ensured Specifications for –40°C to 125°C
1-µA Off-State Quiescent Current
Thermal Overload Protection
Foldback Current Limiting
Ground Pin Current: 55 µA (typical) at full load
Enable Pin (LP38693)

Specifications

Output options	Fixed Output	Iout (max) (A)	0.5
Vin (max) (V)	10	Vin (min) (V)	2.7
Vout (max) (V)	5	Vout (min) (V)	1.8
Fixed output options (V)	1.8, 2.5, 3.3, 5	Noise (µVrms)	80
Iq (typ) (mA)	0.055	Thermal resistance θJA (°C/W)	51
Rating	Automotive	Load capacitance (min) (µF)	1
Regulated outputs (#)	1	Features	Enable, Foldback Overcurrent protection
Accuracy (%)	5	PSRR at 100 KHz (dB)	50
Dropout voltage (Vdo) (typ) (mV)	250	Operating temperature range (°C)	-40 to 125
feature-type	LDO	feature-number-of-outputs	1
feature-polarity	Positive	feature-accuracy-	±2
feature-process-technology		feature-output-type	Fixed
feature-output-voltage-v	3.3	feature-maximum-output-current-a	0.5
feature-minimum-input-voltage-v	2.7	feature-maximum-input-voltage-v	10
feature-maximum-dropout-voltage-current-v	0.11@100mA\|0.55@500mA	feature-line-regulation	0.03%/V(Typ)
feature-load-regulation	1.8%/A(Typ)	feature-maximum-power-dissipation-mw
feature-packaging	Tape and Reel	feature-rad-hard	No
feature-pin-count	6	feature-cecc-qualified	No
feature-esd-protection	Yes	feature-escc-qualified
feature-military	No	feature-aec-qualified	Yes
feature-aec-qualified-number	AEC-Q100	feature-auto-motive	Yes
feature-p-pap	Yes	feature-eccn-code	EAR99
feature-svhc	No	feature-svhc-exceeds-threshold	No