Power

来自Jack's Lab
2019年11月14日 (四) 23:26Comcat (讨论 | 贡献)的版本

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目录

1 AC to DC

1.1 MP155

Mp155-ref-sch.png



1.2 F7298

主控非隔离电源芯片 F7298 典型应用电路:

F7298.refer.sch.png



1.3 12V

220V switch to 12V constant voltage power supply model, rated 12W and 1A current output



2 DC to DC

2.1 WL2803E

Feature
  • 500mA CMOS LDO
  • Ultra low dropout, 130mV (Typ.) @ 500mA load current
  • The quiescent current is typically 150uA
  • Vin MAX = 6.5V
  • SOT23-5 small package
  • Output 3.3V is marking WS33/YYWW (YY - Year code, WW - Week code)


Wl2803-pin-app.png



2.2 AP2112

Feature
  • 600mA CMOS LDO
  • Low Dropout Voltage (3.3V): 250mV (Typ.) @ 600mA
  • Low Quiescent Current: 55μA (Typ.)
  • Low Standby Current: 0.01μA (Typ.)
  • Vin MAX = 6.5V
  • Provides SOT-23-5, SOT-89-5, and SOIC-8 packages


AP2112-pin-app.png



2.3 WL2803G

需要低 dropout voltage 的场合,替换 AMS1117

Feature
  • 1000mA CMOS LDO
  • Dropout voltage : 260mV @ Iout = 800mA load current
  • The quiescent current is typically 150uA
  • Vin MAX = 6.5V
  • SOT-223-3L package
  • Output 3.3V is marking 2803G**/YYWW [ ** - Voltage code (33: 3.3V), YY - Year code, WW - Week code ]


Wl2803g-pin-app.png



2.4 AMS1117-3.3

Feature
  • 1000mA LDO
  • Dropout voltage : 1.1V @ Iout = 800mA load current
  • The quiescent current is typically 5mA
  • Vin MAX = 15V
  • SOT-223-3L package


AMS1117-pin.png



2.5 TPS63001

  • Input Voltage Range: 1.8 V to 5.5 V
  • Fixed and Adjustable Output Voltage Options from 1.2 V to 5.5 V
  • Up to 96% Efficiency
  • 1200-mA Output Current at 3.3 V in Step-Down Mode (VIN = 3.6 V to 5.5 V)
  • Up to 800-mA Output Current at 3.3 V in Boost Mode (VIN > 2.4 V)
  • Automatic Transition Between Step-Down and Boost Mode
  • Device Quiescent Current less than 50 μA
  • Power-Save Mode for Improved Efficiency at Low Output Power
  • Load Disconnect During Shutdown
  • Overtemperature Protection
  • Small 3mm × 3mm 10-Pin VSON Package (QFN)


TPS63001-APP-SCH.png


TPS63001-APP-Layout.png



2.6 MC34063

1.5 A, Step-Up/Down/ Inverting Switching Regulators

  • Operation from 3.0 V to 40 V Input
  • Low Standby Current
  • Current Limiting
  • Output Switch Current to 1.5 A
  • Output Voltage Adjustable
  • Frequency Operation to 100 kHz
  • Precision 2% Reference
  • NCV Prefix for Automotive


> MC34063 Datasheet


2.7 BQ27441



ESP8266/ESP8285 chip、MY9291/MY9231 chip、SPI Flash chip are all 3.3V power.

2.8 MP1470

  • Wide 4.7V to 16V Operating Input Range
  • Fixed 500kHz Switching Frequency
  • Over-Current Protection and Hiccup
  • Thermal Shutdown
  • Output Adjustable from 0.8V
  • Available in a 6-pin TSOT-23 package


Mp1470-typical.jpg


MP1470 Datasheet



2.9 MP2104

  • High Efficiency: Up to 95%
  • 1.7MHz Constant Switching Frequency
  • 600mA Available Load Current
  • 2.5V to 6V Input Voltage Range
  • Output Voltage as Low as 0.6V
  • 100% Duty Cycle in Dropout
  • Short Circuit Protection
  • Thermal Fault Protection
  • <0.1µA Shutdown Current
  • 1.5V and 1.8V Fixed Output Versions
  • Space Saving 5-Pin TSOT23 and 6-pin thin QFN Packages


MP2104 Datasheet



2.10 MP2359

  • Wide 4.5V to 24V Operating Input Range
  • 1.2A Peak Output Current
  • 0.35Ω Internal Power MOSFET Switch
  • Stable with Low ESR Output Ceramic Capacitors
  • Up to 92% Efficiency
  • 0.1μA Shutdown Mode
  • Fixed 1.4MHz Frequency
  • Thermal Shutdown
  • Cycle-by-Cycle Over Current Protection
  • Output Adjustable from 0.81V to 15V


Mp2359-sch.jpg



2.11 MP2307

宽电压输入、至少 90% 转换效率


典型应用电路:

Power-mp2307.png

R1 的大小,控制输出电压的值


CAMGO-Power-SCH.png



2.12 L5973

  • 2.5 A internal switch
  • Operating input voltage from 4 V to 36 V
  • 3.3 V / (±2%) reference voltage
  • Output voltage adjustable from 1.235 V to 35 V




3 Step-Up

3.1 LM2577



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