Datasheet > SS6611COTR

SS6611COTR

更新时间： 2024-11-21 06:13:59

品牌	Logo	应用领域
其他 - ETC		转换器
页数	文件大小	规格书
16页	535K
描述
High Efficiency Syncronous Step-up DC/DC Converter

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SS6611COTR 数据手册

SS6610/11

High Efficiency Synchronous

Step-up DC/DC Converter

DESCRIPTION

FEATURES

High efficiency. (93% when VIN=2.4V, VOUT=3.3V,

The SS6610/SS6611 are high-efficiency step-up

DC/DC converters, with a start-up voltage as low

as 0.8V, and an operating voltage down to 0.7V.

Consuming only 20µA of quiescent current,

these devices include a built-in synchronous rec-

tifier that reduces size and cost by eliminating

the need for an external Schottky diode, and

improves overall efficiency by minimizing

losses.

I_OUT=200mA)

Output current up to 500mA. (SS6610 at VIN=2.4V

and V_OUT=3.3V)

Quiescent supply current of 20µA.

Power-saving shutdown mode (0.1µA typical).

Internal synchronous rectifier (no external diode

required).

On-chip low-battery detector.

Low battery hysteresis

Space-saving package: MSOP-8

The switching frequency can range up to

500KHz depending on the load and input volt-

age. The output voltage can be easily set; by

two external resistors or 1.8V to 5.5V; con-

necting FB to OUT to get 3.3V; or connecting

to GND to get 5.0V. The peak current of the

internal switch is fixed at 1.0A (SS6610) or

0.65A (SS6611) for design flexibility.

APPLICATIONS

Palmtop & Notebook Computers.

ꢀ

PDAs

ꢀ

Wireless Phones

ꢀ

Pocket Organizers.

ꢀ

Digital Cameras.

ꢀ

Hand-Held Devices with 1 to 3 Cells of

ꢀ

NiMH/NiCd Batteries.

TYPICAL APPLICATION CIRCUIT

47µF

22µH

OFF

Output 3.3V, 5.0V

or Adj. (1.8V to

5.5V) up to

300mA

SHDN

SS6610

OUT

47µF

SS6611

Low Battery

Detection

LBI

Low-battery

Detect Out

LBO

REF

GND

0.1µF

Rev.2.01 11/06/2003

www.SiliconStandard.com

1 of 16

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