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See Technical Specifications

LP3966ES-ADJ/NOPB

Packaged in a 6-pin TO-263 package with tab for better thermal dissipation

Manufacturer:

Texas Instruments
Mfr.Part #:

LP3966ES-ADJ/NOPB
Datasheet:

LP3966ES-ADJ/NOPB Datasheet (PDF)
Output options:

Adjustable Output, Fixed Output
Iout (max) (A):

3
Vin (max) (V):

7
Vin (min) (V):

2.5
EDA/CAD Models:

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LP3966ES-ADJ/NOPB General Description

The LP3963/LP3966 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V input supply. Wide range of preset output voltage options are available. These ultra low dropout linear regulators respond very quickly to step changes in load which makes them suitable for low voltage microprocessor applications. The LP3963/LP3966 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3963/LP3966 to operate under extremely low dropout conditions.

Dropout Voltage: Ultra low dropout voltage; typically 80mV at 300mA load current and 800mV at 3A load current.

Ground Pin Current: Typically 6mA at 3A load current.

Shutdown Mode: Typically 15µA quiescent current when the shutdown pin is pulled low.

Error Flag: Error flag goes low when the output voltage drops 10% below nominal value (for LP3963).

SENSE: Sense pin improves regulation at remote loads. (For LP3966)

Precision Output Voltage: Multiple output voltage options are available ranging from 1.2V to 5.0V and adjustable (LP3966), with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature).

Key Features

Ultra Low Dropout Voltage
Low Ground Pin Current
Load Regulation of 0.06%
15µA Quiescent Current in Shutdown Mode
Specified Output Current of 3A DC
Available in DDPAK/TO-263 and TO-220 Packages
Output Voltage Accuracy ± 1.5%
Error Flag Indicates Output Status (LP3963)
Sense Option Improves Load Regulation (LP3966)
Minimum Output Capacitor Requirements
Overtemperature/Overcurrent Protection
−40°C to +125°C Junction Temperature Range

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Specifications

Output options	Adjustable Output, Fixed Output	Iout (max) (A)	3
Vin (max) (V)	7	Vin (min) (V)	2.5
Vout (max) (V)	5	Vout (min) (V)	1.215
Fixed output options (V)	1.8, 2.5, 3.3	Noise (µVrms)	150
Iq (typ) (mA)	5	Thermal resistance θJA (°C/W)	50
Rating	Catalog	Load capacitance (min) (µF)	33
Regulated outputs (#)	1	Features	Enable, Power good
Accuracy (%)	1	PSRR at 100 KHz (dB)	32
Dropout voltage (Vdo) (typ) (mV)	800	Operating temperature range (°C)	-40 to 125
feature-type	LDO	feature-number-of-outputs	1
feature-polarity	Positive	feature-accuracy-	±1.5
feature-process-technology		feature-output-type	Adjustable
feature-output-voltage-v	1.2 to 5	feature-maximum-output-current-a	3
feature-minimum-input-voltage-v	2.5	feature-maximum-input-voltage-v	7
feature-maximum-dropout-voltage-current-v	0.1@300mA\|1@3A	feature-line-regulation	0.02%(Typ)
feature-load-regulation	0.06%(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