IN

BIAS

GND

OUT

10 PF Ceramic

10 PF

Ceramic

1 PF

GND

GND

LP38852-ADJ

ADJ

R1

R2

SS

EN

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

LP38852-ADJ

SNVS482F – JANUARY 2007 – REVISED DECEMBER 2015

LP38852-ADJ 1.5-A Fast-Response High-Accuracy Adjustable LDO Linear Regulator With

Enable and Soft-Start

1 Features

3 Description

The LP38852-ADJ is a high-current, fast-response

1

•

regulator

which

can

maintain

output

voltage

•

regulation with extremely low input-to-output voltage

•

drop. Fabricated on a CMOS process, the device

•

Dropout Voltage of 130 mV (Typical) at 1.5-A

voltage to drive the gate of the N-MOS power

Load Current

•

Precision Output Voltage Across All Line and

supplies power to the load. The use of an external

Load Conditions:

–

voltages.

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

•

Overtemperature and Overcurrent Protection

minimum external capacitance is required to maintain

loop stability.

•

Stable with 10-µF Ceramic Capacitors

•

Available in 7-pin TO-220, 7-Pin DDPAK/TO-263,

The fast transient response of this device makes it

and 8-Pin SO PowerPAD™ Packages

suitable for use in powering DSP, microcontroller core

voltages,

and

switch-mode

power

supply

post-

•

−40°C to +125°C Operating Junction Temperature

regulators.

Range

Dropout Voltage: 130 mV (typical) at 1.5-A load

2 Applications

current.

•

ASIC Power Supplies In:

Low Ground Pin Current: 10 mA (typical) at 1.5-A

load current.

–

Desktops, Notebooks, and Graphics Cards,

Servers

Soft Start: Programmable soft-start time.

–

Gaming Set Top Boxes, Printers and Copiers

Device Information(1)

•

Server Core and I/O Supplies

PART

PACKAGE

BODY SIZE (NOM)

•

DSP and FPGA Power Supplies

NUMBER

•

SMPS Post-Regulator

DDPAK/TO-263 (7)

10.10 mm × 8.89 mm

LP38852-ADJ

TO-220 (7)

14.986 × 10.16 mm

SO PowerPAD (8)

4.89 mm × 3.90 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Typical Application Circuit

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.