LP3856ES-ADJ/NOPB

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Texas Instruments

3-A, 7-V, ADJUSTABLE ULTRA-LOW-DROPOUT VOLTAGE REGULATOR WITH ENABLE

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LP3856ES-ADJ/NOPB

Active

Texas Instruments

3-A, 7-V, ADJUSTABLE ULTRA-LOW-DROPOUT VOLTAGE REGULATOR WITH ENABLE

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Description Specifications Series Pricing CAD Documents

Description

General part information

LP3856 Series

The LP3853/LP3856 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 LP3853/LP3856 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3853/LP3856 to operate under extremely low dropout conditions.

Dropout Voltage:Ultra low dropout voltage; typically 39mV at 300mA load current and 390mV at 3A load current.

Ground Pin Current:Typically 4mA at 3A load current.

Technical Specifications

Parameters and characteristics for this part

Specification	LP3856ES-ADJ/NOPB

Control Features	Enable
Current - Output	3 A
Current - Quiescent (Iq)	4 mA
Current - Supply (Max)	10 mA
Mounting Type	Surface Mount
Number of Regulators	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package Leads	5 Leads
Package Name	TO-263 (DDPAK-5), D2PAK
Protection Features	Over Current, Short Circuit, Over Temperature
PSRR (Maximum)	73 dB
PSRR (Minimum)	57 dB
Voltage - Input (Max)	7 V
Voltage - Output (Max)	6.5 VDC
Voltage - Output (Min/Fixed)	1.23 V
Voltage Dropout (Max)	0.6 V

LP3856 Series

3-A, 7-V, adjustable ultra-low-dropout voltage regulator with enable

Part	Voltage Dropout (Max)	Voltage - Input (Max)	Protection Features	Output Type	Number of Regulators	Current - Supply (Max)	Current - Quiescent (Iq)	Package Name	Mounting Type	Output Configuration	Control Features	Current - Output	Package / Case	Voltage - Output (Min/Fixed)	Operating Temperature (Max)	Operating Temperature (Min)	PSRR (Maximum)	PSRR (Minimum)	Package Leads	Voltage - Output (Max)
Texas Instruments LP3856ET-5.0	0.6 V	7 V	Over Current Over Temperature Short Circuit	Fixed	1	10 mA	4 mA	TO-220-5	Through Hole	Positive	Enable	3 A	TO-220-5 Formed Leads	5 V	125 °C	-40 °C	73 dB	57 dB
Texas Instruments LP3856ESX-1.8/NOPB	0.6 V	7 V	Over Current Over Temperature Short Circuit	Fixed	1	10 mA	4 mA	D2PAK TO-263 (DDPAK-5)	Surface Mount	Positive	Enable	3 A		1.8 V	125 °C	-40 °C	73 dB	57 dB	5 Leads
Texas Instruments LP3856ET-5.0	0.6 V	7 V	Over Current Over Temperature Short Circuit	Fixed	1	10 mA	4 mA	TO-220-5	Through Hole	Positive	Enable	3 A	TO-220-5 Formed Leads	5 V	125 °C	-40 °C	73 dB	57 dB
Texas Instruments LP3856ET-5.0/NOPB	0.6 V	7 V	Over Current Over Temperature Short Circuit	Fixed	1	10 mA	4 mA	TO-220-5	Through Hole	Positive	Enable	3 A	TO-220-5 Formed Leads	5 V	125 °C	-40 °C	73 dB	57 dB
Texas Instruments LP3856ES-5.0	0.6 V	7 V	Over Current Over Temperature Short Circuit	Fixed	1	10 mA	4 mA	D2PAK TO-263 (DDPAK-5)	Surface Mount	Positive	Enable	3 A		5 V	125 °C	-40 °C	73 dB	57 dB	5 Leads
Texas Instruments LP3856ET-3.3/NOPB	0.6 V	7 V	Over Current Over Temperature Short Circuit	Fixed	1	10 mA	4 mA	TO-220-5	Through Hole	Positive	Enable	3 A	TO-220-5 Formed Leads	3.3 V	125 °C	-40 °C	73 dB	57 dB
Texas Instruments LP3856ESX-2.5	0.6 V	7 V	Over Current Over Temperature Short Circuit	Fixed	1	10 mA	4 mA	D2PAK TO-263 (DDPAK-5)	Surface Mount	Positive	Enable	3 A		2.5 V	125 °C	-40 °C	73 dB	57 dB	5 Leads
Texas Instruments LP3856ES-ADJ/NOPB	0.6 V	7 V	Over Current Over Temperature Short Circuit	Adjustable	1	10 mA	4 mA	D2PAK TO-263 (DDPAK-5)	Surface Mount	Positive	Enable	3 A		1.23 V	125 °C	-40 °C	73 dB	57 dB	5 Leads	6.5 VDC
Texas Instruments LP3856ESX-3.3	0.6 V	7 V	Over Current Over Temperature Short Circuit	Fixed	1	10 mA	4 mA	D2PAK TO-263 (DDPAK-5)	Surface Mount	Positive	Enable	3 A		3.3 V	125 °C	-40 °C	73 dB	57 dB	5 Leads
Texas Instruments LP3856ESX-ADJ/NOPB	0.6 V	7 V	Over Current Over Temperature Short Circuit	Adjustable	1	10 mA	4 mA	D2PAK TO-263 (DDPAK-5)	Surface Mount	Positive	Enable	3 A		1.23 V	125 °C	-40 °C	73 dB	57 dB	5 Leads	6.5 VDC

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

LP3856-ADJ 3A Fast Response Ultra Low Dropout Linear Regulators datasheet (Rev. E)