LDR3325

更新时间： 2024-11-17 22:31:27

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		稳压器
页数	文件大小	规格书
13页	389K
描述
VERY LOW DROP DUAL VOLTAGE REGULATOR

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中文翻译

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数据手册

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LDR3325 数据手册

LDRxxyy

VERY LOW DROP

DUAL VOLTAGE REGULATOR

■

OUTPUT CURRENT 1 UP TO 500mA

OUTPUT CURRENT 2 UP TO 1.0A

LOW DROPOUT VOLTAGE 1

(0.3V @ I =500mA)

■

LOW DROPOUT VOLTAGE 2

(0.4V @ I =1A)

VERY LOW SUPPLY CURRENT (TYP.50µA

IN OFF MODE, 1.6mA MAX IN ON MODE)

LOGIC-CONTROLLED ELECTRONIC

SHUTDOWN

OUTPUT VOLTAGE AVAILABILITY FOR

EACH REGULATOR: 1.8V, 2.5V, 3.3V

INTERNAL CURRENT AND THERMAL LIMIT

STABLE WITH LOW VALUE (MIN 4.7µF)

AND LOW E.S.R. OUTPUT CAPACITORS

SUPPLY VOLTAGE REJECTION: 70dB (TYP.)

TEMPERATURE RANGE (-40°C TO 125°C)

SPAK-7L

PPAK

(0.5V) and the very low supply current make it

particularly suitable for low noise and low power

applications such as PDA, MICRODRIVE and

other data storage applications while the used

high voltage technology makes this device

suitable for consumer applications such as

■

MONITORS AND SET-TOP-BOX. For each V

Shutdown Logic Control function is available (TTL

compatible) to decrease the total power

consumption.

DESCRIPTION

The LDRxxyy is a Very Low Drop Dual Voltage

Regulator available in PPAK for the version

without inhibit and in SPAK-7L for the version with

the shutdown feature. The very low drop-voltage

Figure 1: Block Diagram

POWER 1

VI1

V_O1

BAND GAP 1

DRIVER 1

START UP 1

INH1

ERROR

AMPLIFIER 1

THERMAL 1

THERMAL 2

ERROR

AMPLIFIER 2

BAND GAP 2

START UP 2

INH2

DRIVER 2

POWER 2

VI2

VO2

Rev. 2

1/13

August 2004

12 3 4 5 6 7...13

中文翻译

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