058080912c
Affected files: 电源/DCDC/升压.md 电源/DCDC/升降压.md
1.1 KiB
1.1 KiB
title | updated | created | tags | |||
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升降压 | 2022-01-12 09:03:31Z | 2022-01-08 13:18:04Z |
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#国产化 #电源 #dcdc
SC8721
国产
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Integrated Switches, 10 m for Q1/4, 20 m for Q2/3
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Wide VIN Range: 2.7 V to 22 V, 25V sustainable
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Wide VOUT Range: 2.7 V to 22 V, 25V sustainable
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输出电压可调(电阻调、IIC调),电流可达10A
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可模块化,输入,输出,使能,Trim,SCL,SDA,CSO
电阻调:
VOUT = VFB_REF x (1+ RUP/RDOWN ),VFB_REF is the internal reference voltage 1V,分辨率1mV
IIC调:
VOUT_SET =5±(VOUT_SET_MSB x4+VOUT_SET_LSB) x 20mV,分辨率20mV
IIC限流:
IOUT_ILIM = (CSO_SET+1)4mV2kR/(Rs*RCSO),Rs=5mR,RCSO=32kR时分辨率50mA
2021.06
6块/片,可做数控电源
实测效率很高,单电(3-4.2V)输入,输出3.3V时效率不低于95%
SC8815/SC8802
TPS63070
HX4002B
sot-23-6封装。1.8-5转3.3,适合单锂供电。静态电流较大,约1.8mA,低功耗使用续带开关