Integrated Circuits (ICs)

LP38851T-ADJ

Obsolete

Texas Instruments

IC REG LIN POS ADJ 800MA TO220-7

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Integrated Circuits (ICs)

LP38851T-ADJ

Obsolete

Texas Instruments

IC REG LIN POS ADJ 800MA TO220-7

Deep-Dive with AI

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LP38851T-ADJ

Control Features	Soft Start, Enable
Current - Output	800 mA
Current - Quiescent (Iq)	300 µA
Current - Supply (Max) [Max]	9 mA
Mounting Type	Through Hole
Number of Regulators	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	TO-220-7 Formed Leads
Protection Features	Short Circuit, Over Temperature, Under Voltage Lockout (UVLO), Over Current
PSRR [Max]	72 dB
PSRR [Min]	61 dB
Supplier Device Package	TO-220-7
Voltage - Input (Max) [Max]	5.5 V
Voltage - Output (Max) [Max]	1.8 V
Voltage - Output (Min/Fixed)	0.8 V
Voltage Dropout (Max) [Max]	0.2 V

LP38851 Series

800-mA, low-VIN (0.915-V), adjustable ultra-low-dropout voltage regulator with enable

Part	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Voltage - Input (Max) [Max]	Voltage Dropout (Max) [Max]	Control Features	Output Type	Output Configuration	Protection Features	Voltage - Output (Max) [Max]	Number of Regulators	Current - Quiescent (Iq)	Mounting Type	Current - Output	Voltage - Output (Min/Fixed)	PSRR [Min]	PSRR [Max]	Current - Supply (Max) [Max]	Package / Case [y]	Package / Case [x]
Texas Instruments LP38851SX-ADJ/NOPB	D2PAK (7 Leads + Tab) TO-263-8 TO-263CA	125 °C	-40 °C	TO-263 (DDPAK-7)	5.5 V	0.2 V	Enable Soft Start	Adjustable	Positive	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	1.8 V	1	300 µA	Surface Mount	800 mA	0.8 V	61 dB	72 dB	9 mA
Texas Instruments LP38851T-ADJ	TO-220-7 Formed Leads	125 °C	-40 °C	TO-220-7	5.5 V	0.2 V	Enable Soft Start	Adjustable	Positive	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	1.8 V	1	300 µA	Through Hole	800 mA	0.8 V	61 dB	72 dB	9 mA
Texas Instruments LP38851MR-ADJ/NOPB	8-PowerSOIC	125 °C	-40 °C	8-SO PowerPad	5.5 V	0.2 V	Enable Soft Start	Adjustable	Positive	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	1.8 V	1	300 µA	Surface Mount	800 mA	0.8 V	61 dB	72 dB	9 mA	3.9 mm	0.154 in
Texas Instruments LP38851MRX-ADJ/NOPB	8-PowerSOIC	125 °C	-40 °C	8-SO PowerPad	5.5 V	0.2 V	Enable Soft Start	Adjustable	Positive	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	1.8 V	1	300 µA	Surface Mount	800 mA	0.8 V	61 dB	72 dB	9 mA	3.9 mm	0.154 in
Texas Instruments LP38851SX-ADJ	D2PAK (7 Leads + Tab) TO-263-8 TO-263CA	125 °C	-40 °C	TO-263 (DDPAK-7)	5.5 V	0.2 V	Enable Soft Start	Adjustable	Positive	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	1.8 V	1	300 µA	Surface Mount	800 mA	0.8 V	61 dB	72 dB	9 mA
Texas Instruments LP38851S-ADJ	D2PAK (7 Leads + Tab) TO-263-8 TO-263CA	125 °C	-40 °C	TO-263 (DDPAK-7)	5.5 V	0.2 V	Enable Soft Start	Adjustable	Positive	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	1.8 V	1	300 µA	Surface Mount	800 mA	0.8 V	61 dB	72 dB	9 mA

Pricing

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

Distributor	Package	Quantity	$

Description

General part information

LP38851 Series

The LP38851-ADJ is a high current, fast response regulator which can maintain output voltage regulation with extremely low input to output voltage drop. Fabricated on a CMOS process, the device operates from two input voltages: VBIASprovides voltage to drive the gate of the N-MOS power transistor, while VINis the input voltage which supplies power to the load. The use of an external bias rail allows the part to operate from ultra low VINvoltages. Unlike bipolar regulators, the CMOS architecture consumes extremely low quiescent current at any output load current. The use of an N-MOS power transistor results in wide bandwidth, yet minimum external capacitance is required to maintain loop stability.

The fast transient response of this device makes it suitable for use in powering DSP, Microcontroller Core voltages and Switch Mode Power Supply post regulators. The part is available in PSOP 8–pin, SFM 7–pin, and TO-263 7-pin packages.

Documents

Technical documentation and resources

No documents available