Datasheet > HWD20011EUA

HWD20011EUA

更新时间： 2024-09-28 05:38:47

品牌	Logo	应用领域
其他 - ETC		转换器光电二极管
页数	文件大小	规格书
13页	799K
描述
High-Efficiency, Low-Supply-Current, Compact, Step-Up DC-DC Converters

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中文翻译

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数据手册

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HWD20011EUA 数据手册

Hig h -Effic ie n c y, Lo w -S u p p ly-Cu rre n t ,

Co m p a c t , S t e p -Up DC-DC Co n ve rt e rs

Ge n e ra l De s c rip t io n

____________________________Fe a t u re s

ꢀ 94% Efficient at 200mA Output Current

ꢀ 16µA Quiescent Supply Current

The HWD20011/HWD2001/HWD20012 compact, high

effIciency, step-up DC-DC converters fit in small MSOP

packages. They feature a built-in synchronous rectifier,

which improves efficiency and reduces size and cost

by eliminating the need for an external Schottky diode.

Quiescent supply current is only 16µA.

ꢀ Internal Synchronous Rectifier (no external diode)

ꢀ 0.1µA Logic-Controlled Shutdown

ꢀ LBI/LBO Low-Battery Detector

The input voltage ranges from 0.7V to V

, where

OUT

can be set from 2V to 5.5V. Start-up is guaran-

ꢀ Selectable Current Limit for Reduced Ripple

te e d from 1.1V inp uts . The HWD20011/HWD2001/

HWD20012 have a preset, pin-selectable output for 5V or ꢀ Low-Noise, Anti-Ringing Feature (HWD20012)

3.3V. The outputs can also be adjusted to other volt-

ages using two external resistors.

ꢀ 8-Pin and 10-Pin MSOP Packages

ꢀ Preassembled Evaluation Kit (HWD20012EVKIT)

All thre e d e vic e s ha ve a 0.3Ω N-c ha nne l MOSFET

power switch. The HWD20011 has a 1A current limit. The

HWD2001 has a 0.5A current limit, which permits the

use of a smaller inductor. The HWD20012 comes in a

10-pin MSOP package and features an adjustable cur-

rent limit and circuitry to reduce inductor ringing.

_______________Ord e rin g In fo rm a t io n

PART

TEMP. RANGE

-40°C to +85°C

PIN-PACKAGE

8 MSOP

________________________Ap p lic a t io n s

HWD20011EUA

HWD2001EUA

HWD20012EUB

Pagers

8 MSOP

Wireless Phones

Medical Devices

Hand-Held Computers

PDAs

10 MSOP

RF Tags

P in Co n fig u ra t io n s

1 to 3-Cell Hand-Held Devices

TOP VIEW

Typ ic a l Op e ra t in g Circ u it

OUT

LBI

INPUT

0.7V TO V

OUT

HWD20011

HWD2001

LBO

REF

GND

SHDN

OUTPUT

3.3V, 5V, OR

ADJ (2V TO 5.5V)

UP TO 300mA

SHDN

OFF

MSOP

HWD20011

HWD2001

OUT

LBI

10 OUT

LOW-BATTERY

DETECT IN

LOW-BATTERY

DETECT OUT

HWD20012

LBI

LBO

GND

BATT

SHDN

REF

GND

CLSEL

REF

0.1µF

MSOP

12 3 4 5 6 7...13

中文翻译

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