LA5677M 查看數據表（PDF） - SANYO -> Panasonic

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LA5677M

Dual Switching Regulator Control IC

SANYO -> Panasonic 

Ordering number : EN3660B

Monolithic Linear IC

LA5677M

Dual Switching Regulator Control IC

Overview

The LA5677M supports single-input control of the outputs

of two converters of arbitrary types, including step up, step

down and inverting. Since the LA5677M supports low

voltage (3.6 to 18 V) and high frequency (1 to 500 kHz)

operation, it is ideal for use in power supplies in battery

powered portable equipment.

Package Dimensions

unit: mm

3035A-MFP16

[LA5677M]

Features

• Operates at low voltages (3.6 to 18 V)

• Can be used with high frequency oscillators (1 to

500 kHz)

• Built-in low input malfunction prevention circuit

• Built-in timer-latch short circuit protection circuit

Specifications

Maximum Ratings at Ta = 25°C

Parameter

Maximum supply voltage

Error amplifier input voltage

Collector output voltage

Collector output current

Allowable power dissipation

Operating temperature

Storage temperature

Symbol

VCC max

VI

VO

IO

Pd max

Topr

Tstg

Operating Conditions at Ta = 25°C

Conditions

Parameter

Recommended supply voltage

Error amplifier input voltage

Collector output voltage

Collector output current

Feedback pin current

Feedback resistance

Timing capacitance

Timing resistance

Oscillator frequency

Symbol

VCC

VI

VO

IO

IFT

RNF

CT

RT

fOSC

Conditions

min

3.6

1.05

–0.3

100

150

5.1

1

SANYO: MFP16

Ratings

Unit

20

V

20

V

20

V

21

mA

330

mW

–20 to +85

°C

–40 to +125

°C

Ratings

typ

Unit

max

18

V

1.45

V

+18

V

20

mA

45

µA

kΩ

15000

pF

100

kΩ

500

kHz

Any and all SANYO products described or contained herein do not have specifications that can handle

applications that require extremely high levels of reliability, such as life-support systems, aircraft’s

control systems, or other applications whose failure can be reasonably expected to result in serious

physical and/or material damage. Consult with your SANYO representative nearest you before using

any SANYO products described or contained herein in such applications.

SANYO assumes no responsibility for equipment failures that result from using products at values that

exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other

parameters) listed in products specifications of any and all SANYO products described or contained

herein.

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

O3098HA (OT)/92793TS A8-8023 No. 3660-1/7

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