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HM8116A データシート(PDF) 1 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

部品番号. HM8116A
部品情報  Standoff 42V 1.2A 800KHz Sync Step-Down Regulator
ダウンロード  13 Pages
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メーカー  HMSEMI [Shenzhen Huazhimei Semiconductor Co., Ltd]
ホームページ  http://www.hmsemi.com/
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HM8116A Datasheet(HTML) 1 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

 
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Standoff 42V 1.2A 800KHz Sync Step-Down Regulator
Features
Wide 4V to 38V Operating Input Range
Standoff Voltage: 42V
1.2A Continuous Output Current
800KHz Switching Frequency
Short Protection with Foldback-Mode
Built-in Over Current Limit
Built-in Over Voltage Protection
Support PSM Mode
Internal Soft-Start
250mΩ/150mΩ Low RDS(ON) Internal Power
MOSFETs
Output Adjustable from 0.8V
No Schottky Diode Required
Integrated internal compensation
Thermal Shutdown
Available in SOT23-6 Package
-40°C to +85°C Temperature Range
Applications
Battery-Powered Equipment
Portable Media Players
Industrial Distributed Power Applications
Portable Hand-Held Instruments
General Description
The
device is high-efficiency, synchronous step-down DC/DC regulators. With a wide input range, it is
suitable for a wide range of applications, such as power conditioning from unregulated sources. It features a low
RDSON (250mΩ/150mΩ typical) internal switch for maximum efficiency (92% typical). Supports PSM mode, the
operating frequency is fixed at 800kHz, allowing the use of small external components while still being able to have
low output voltage ripple. With OVP function, the IC can stand off input voltage as high as 42V. The HM8116A
supports 1.2A continuous output current, and it has a 0.8V nominal feedback voltage.
Additional features include: thermal shutdown, VIN undervoltage lockout, and gate drive undervoltage lockout. The
HM8116A is available in a low-profile SOT23-6 package.
Typical Application Circuit
L1
COUT
R1
R2
CIN
IN
SW
EN
FB
GND
VIN
VOUT
C1
BS
ON/
OFF
CFF
Basic Application Circuit
HM8116A


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