LP38690DT-3.3/NOPB National Semiconductor, LP38690DT-3.3/NOPB Datasheet

LP38690DT-3.3/NOPB

Manufacturer Part Number

LP38690DT-3.3/NOPB

Description

IC REG LDO 1A 3.3V TO-252

Manufacturer

National Semiconductor

Series

PowerWise®r

Datasheets

1.LP38690DTX-3.3NOPB.pdf (20 pages)

2.LP38692MP-3.3NOPB.pdf (15 pages)

Specifications of LP38690DT-3.3/NOPB

Regulator Topology

Positive Fixed

Voltage - Output

3.3V

Voltage - Input

Up to 10V

Voltage - Dropout (typical)

0.65V @ 1A

Number Of Regulators

Current - Output

Operating Temperature

-40°C ~ 125°C

Mounting Type

Surface Mount

Package / Case

TO-252-2, DPak (2 Leads + Tab), TO-252AA, SC-63

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Current - Limit (min)

Other names

*LP38690DT-3.3
*LP38690DT-3.3/NOPB
LP38690DT-3.3

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

LP38690DT-3.3/NOPB

Manufacturer:

TI/德州仪器

Quantity:

20 000

Current page: 1 of 15
Download datasheet (821Kb)

LP38690/LP38692

1A Low Dropout CMOS Linear Regulators

Stable with Ceramic Output Capacitors

General Description

The LP38690/2 low dropout CMOS linear regulators provide

tight output tolerance (2.5% typical), extremely low dropout

voltage (450mV

lent AC performance utilizing ultra low ESR ceramic output

capacitors.

The low thermal resistance of the LLP, SOT-223 and T0-252

packages allow the full operating current to be used even in

high ambient temperature environments.

The use of a PMOS power transistor means that no DC base

drive current is required to bias it allowing ground pin current

to remain below 100 µA regardless of load current, input

voltage, or operating temperature.

Dropout Voltage: 450 mV (typ)

Ground Pin Current: 55 µA (typ) at full load.

Precision Output Voltage: 2.5% (25˚C) accuracy.

Typical Application Circuits

Note: * Minimum value required for stability.

**LLP package devices only.

1A load current, V

1A (typ. 5V out).

OUT

DS201266

= 5V), and excel-

Features

n 2.5% output accuracy (25˚C)

n Low dropout voltage: 450mV

n Wide input voltage range (2.7V to 10V)

n Precision (trimmed) bandgap reference

n Guaranteed specs for -40˚C to +125˚C

n 1µA off-state quiescent current

n Thermal overload protection

n Foldback current limiting

n T0-252, SOT-223 and 6-Lead LLP packages

n Enable pin (LP38692)

Applications

n Hard Disk Drives

n Notebook Computers

n Battery Powered Devices

n Portable Instrumentation

20126601

20126602

1A (typ, 5V out)

www.national.com

May 2005

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