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See Technical Specifications

LP38501TS-ADJ/NOPB

3-A, adjustable ultra-low-dropout voltage regulator with enable

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

LP38501TS-ADJ/NOPB
Datasheet:

LP38501TS-ADJ/NOPB Datasheet (PDF)
Output options:

Adjustable Output
Iout (max) (A):

3
Vin (max) (V):

5.5
Vin (min) (V):

2.7
EDA/CAD Models:

Request Free CAD Models for LP38501TS-ADJ/NOPB

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LP38501TS-ADJ/NOPB General Description

TIs FlexCap low-dropout (LDO) linear regulators feature unique compensation that allow use of any type of output capacitor with no limits on minimum or maximum equivalent series resistance (ESR). The LP38501 and LP38503 series of LDOs operate from a 2.7-V to 5.5-V input supply. These ultra-low-dropout linear regulators respond very quickly to step changes in load, making them suitable for low-voltage microprocessor applications. Developed on a CMOS process (utilizing a PMOS pass transistor) the LP38501-ADJ and LP38503-ADJ have low quiescent currents that change little with load current.

GND Pin Current: Typically 2 mA at 3-A load current.
Disable Mode: Typically 25-nA quiescent current when the EN pin is pulled low.
Simplified Compensation: Stable with any type of output capacitor, regardless of ESR.
Precision Output: grade versions available with 1.5% V_ADJ tolerance (25°C) and 3% over line, load, and temperature.

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Key Features

Input Voltage: 2.7 V to 5.5 V
Adjustable Output Voltage: 0.6 V
to 5 V
FlexCap: Stable with Ceramic, Tantalum,
or Aluminum Capacitors
Stable With 10-µF Input and
Output Capacitors
Low Ground-Pin Current
25-nA Quiescent Current in Shutdown Mode
Ensured Output Current of 3 A
Ensured V_ADJ Accuracy of
±1.5% at 25°C (A Grade)
Ensured Accuracy of ±3.5% at
25°C (STD)
Overtemperature and Overcurrent Protection
ENABLE (EN) Pin (LP38501 only)
–40°C to +125°C Operating
Temperature Range

Specifications

Output options	Adjustable Output	Iout (max) (A)	3
Vin (max) (V)	5.5	Vin (min) (V)	2.7
Vout (max) (V)	5	Vout (min) (V)	0.6
Noise (µVrms)	100	Iq (typ) (mA)	2
Thermal resistance θJA (°C/W)	33	Rating	Catalog
Load capacitance (min) (µF)	10	Regulated outputs (#)	1
Features	Enable	Accuracy (%)	2
PSRR at 100 KHz (dB)	25	Dropout voltage (Vdo) (typ) (mV)	420
Operating temperature range (°C)	-40 to 125	feature-type	LDO
feature-number-of-outputs	1	feature-polarity	Positive
feature-accuracy-	±3.5	feature-process-technology	CMOS
feature-output-type	Adjustable	feature-output-voltage-v	0.6 to 5
feature-maximum-output-current-a	3	feature-minimum-input-voltage-v	2.7
feature-maximum-input-voltage-v	5.5	feature-maximum-dropout-voltage-current-v	0.55@3A
feature-line-regulation	0.04%/V(Typ)	feature-load-regulation	0.12%/A(Typ)
feature-maximum-power-dissipation-mw		feature-packaging	Tube
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	No	feature-aec-qualified-number
feature-eccn-code	EAR99	feature-svhc	Yes
feature-svhc-exceeds-threshold	Yes

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