SC21152 반도체 회로 부품 판매점
Tiny 1.2A Synchronous Buck Regulator
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 Semtech |
POWER MANAGEMENT
Features
Input voltage range — 2.3V to 5.5V
1.2A continuous output current
4MHz switching frequency
Adjustable Output Voltage
1% output voltage accuracy
Adaptive On-Time architecture
Up to 100% duty cycle
Up to 96% peak efficiency
Power Save mode for efficient light load operation
>90% efficiency 30mA to 75mA
0.1μA shutdown current
21μA quiescent current
Power Good Indicator
Pre-bias startup protection
Internal soft start
1.5mm x 2mm, 6-Lead MLPD package
WEEE and RoHS compliant and halogen-free
Applications
Tablet PCs
GPS devices
Battery powered equipment
Portable devices
Smart Phones
Wearable Electronics
Typical Application Circuit
SC21152
Tiny 1.2A Synchronous Buck
Regulator with Power Good
Description
The SC21152 is an ultra high efficiency 1.2A DC/DC buck
regulator available in a small MLPD package. These fea-
tures make the SC21152 perfect for small form factor con-
sumer applications where high efficiency is essential.
SC21152 is an Adaptive On-Time 4MHz switching regula-
tor at full load conditions. Under light load conditions it
transitions into PFM Power Save Mode and reduces switch-
ing frequency thus saving energy. High switching fre-
quency operation allows the use of a very small 0.47μH
inductor along with small input and output capacitors to
minimize overall circuit size.
The SC21152 is highly configurable with a wide range of
factory options including internal soft start time, fixed or
adjustable output voltage, automatic output discharge,
and switching frequency.
The SC21152 is offered in a small 6-Lead 1.5mm x 2mm
MLPD package.
2.3V-5.5V Supply
Power
Good
4.7µF
Fixed Output Voltage
VIN LX
SC21152
1.2A
0.47µH Output
10µF
PG FB
EN
EN GND
Adjustable Output Voltage
2.3V-5.5V Supply
Power
Good
4.7µF
VIN LX
SC21152
1.2A
0.47µH Output
10µF
PG FB
EN
EN GND
Rev 1.0
© 2015 Semtech Corporation
SC21152
Ordering Information
Device (1)(2)
Output(3)
Options(3)
Soft Start(3) Output Discharge(3)
Package
SC21152AULTRC Adjustable
100μs
Automatic
1.5mm x 2mm 6-Lead MLPD
SC21152EVB
Evaluation Board 1.5mm x 2.0mm 6-Lead MLPD
Notes:
(1) Available in tape and reel only. A reel contains 3,000 devices.
(2) Lead-free packaging only. Device is WEEE and RoHS compliant and halogen-free.
(3) For other device options not shown contact Semtech Marketing.
The following options can be made available:
VOUT options : adustable and fixed output voltage from 0.8V to 3.6V in 50mV increments.
Soft Start options: internal 100μs, 200μs, 400μs, or 800μs.
Output Discharge options: Automatic Discharge and No Discharge.
Frequency: The default operating frequency is 4MHz with options of 2.2MHz, 3MHz, or 6MHz.
Pin Configuration
Marking Information
1 6 TOP VIEW
2 5 6-Lead MLPD
3
1.5x2.0 (m m )
4
Pin Assignments 6-Lead MLPD
Pin #
Name
1 VIN
2 PG
3 EN
4 FB
5 GND
6 LX
PAD PAD
RCA
oyw
TOP VIEW
1.5x2.0 (m m )
6-Lead MLPD
1.5x2.0 (mm) 6-Lead MLPD Marking Diagram
RCA = Device Marking Code
oyw = Pin 1 Indicator and Date Code
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PDF 파일 내의 페이지 : 총 18 페이지
제조업체: Semtech
( semtech )
SC21152 regulator
데이터시트 다운로드 :
[ SC21152.PDF ]
[ SC21152 다른 제조사 검색 ]
국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
관련 데이터시트
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Tiny 1.2A Synchronous Buck Regulator - Semtech
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Tiny 1.2A Synchronous Buck Regulator - Semtech