MOTOROLA LM2931 Series Specifications

查询LM2931/D供应商

Order this document by LM2931/D

LOW DROPOUT The LM2931 series consists of positive fixed and adjustable output VOLTAGE REGULATORS

voltage regulators that are specifically designed to maintain proper regulation with an extremely low input–to–output voltage differential. These devices are capable of supplying output currents in excess of 100 m A and

FIXED OUTPUT VOLTAGE

feature a low bias current of 0.4 m A at 10 m A output. Designed primarily to survive in the harsh automotive environment, these devices will protect all external load circuitry from input fault conditions

Z SUFFIX

caused by reverse battery connection, two battery jump starts, and

PLASTIC PACKAGE

Pin 1. Output

excessive line transients during load dump. This series also includes internal CASE 29

2. Ground

current limiting, thermal shutdown, and additionally, is able to withstand

3. Input

temporary power–up with mirror–image insertion. Due to the low dropout voltage and bias current specifications, the LM2931 series is ideally suited for battery powered industrial and consumer equipment where an extension of useful battery life is desirable. The ‘C’

T SUFFIX

suffix adjustable output regulators feature an output inhibit pin which is PLASTIC PACKAGE

extremely useful in microprocessor–based systems. CASE 221A

Input–to–Output Voltage Differential of < 0.6 V @ 100 m A Pin 1. Input

Heatsink surface

2. Ground

Output Current in Excess of 100 m A connected to Pin 2.

3. Output

Low Bias Current 60 V Load Dump Protection –50 V Reverse Transient Protection Internal Current Limiting with Thermal Shutdown Temporary Mirror–Image Protection

DT SUFFIX DT–1 SUFFIX

Ideally Suited for Battery Powered Equipment

PLASTIC PACKAGE PLASTIC PACKAGE CASE 369A CASE 369

Economical 5–Lead TO–220 Package with Two Optional Leadforms

(DPAK) (DPAK)

Available in Surface Mount SOP–8, D2PAK and DPAK Packages

High Accuracy (±2%) Reference (LM2931AC) Available D2T SUFFIX PLASTIC PACKAGE CASE 936 (D2PAK)

Heatsink surface (shown as terminal 4 in case outline drawing) is connected to Pin 2.

(See Following Page for Ordering Information.)

FIXED ADJUSTABLE OUTPUT VOLTAGE

Pin 1. Adjust

2. Output Inhibit

Gnd Gnd TH SUFFIX 3. Ground PLASTIC PACKAGE 4. Input

Input Output18

CASE 314A 5. Output

(Top View)

D SUFFIX PLASTIC PACKAGE TV SUFFIX CASE 751 PLASTIC PACKAGE

ADJUSTABLE

(SOP–8) CASE 314B D2T SUFFIX

Output

PLASTIC PACKAGE

Inhibit Adjust

CASE 936A

Gnd Gnd T SUFFIX

(D2PAK)

PLASTC PACKAGE

Input Output18

CASE 314D Heatsink surface (shown as terminal 6 in case outline

(Top View)

Heatsink surface connected to Pin 3. drawing) is connected to Pin 3.5

Motorola, Inc. 1997 Rev 4

1MOTOROLA ANALOG IC DEVICE DATA