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| 型号： | TPS61221DCKR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 0.4 A BATTERY CHARGE CONTROLLER, PDSO6 |
| 封装： | GREEN, PLASTIC, SC-70, 6 PIN |
| 文件页数： | 1/22页 |
| 文件大小： | 1333K |
| 代理商： | TPS61221DCKR |
1
FEATURES
APPLICATIONS
DESCRIPTION
L
C
1
10 F
L
1
4.7 H
VIN
VOUT
FB
C
2
10 F
EN
GND
TPS61220
VOUT
1.8Vto5.5V
R
1
R
2
0.7VtoVOUT
VIN
0.01
0.1
1
10
100
2.8
2.3
1.8
1.3
0.8
OUT
I
-OutputCurrent-mA
IN
V
-InputV
oltage-V
≥ 90%
≥ 80%
≥ 70%
OUT
(V
=3.3V)
EfficiencyvsOutputCurrentandInputVoltage
www.ti.com ............................................................................................................................................................................................... SLVS776 – JANUARY 2009
LOW INPUT VOLTAGE STEP-UP CONVERTER IN 6 PIN SC-70 PACKAGE
Adjustable Output Voltage from 1.8 V to 5.5 V
Up to 95% Efficiency at Typical Operating
Fixed Output Voltage Versions
Conditions
Small 6-pin SC-70 Package
5.5 A Quiescent Current
Startup Into Load at 0.7 V Input Voltage
Battery Powered Applications
Operating Input Voltage from 0.7 V to 5.5 V
–
1 to 3 Cell Alkaline, NiCd or NiMH
Pass-Through Function during Shutdown
–
1 cell Li-Ion or Li-Primary
Minimum Switching Current 200 mA
Solar or Fuel Cell Powered Applications
Protections:
Consumer and Portable Medical Products
–
Output Overvoltage
Personal Care Products
–
Overtemperature
White or Status LEDs
–
Input Undervoltage Lockout
Smartphones
The TPS6122x family devices provide a power-supply solution for products powered by either a single-cell,
two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer battery. Possible output currents
depend on the input-to-output voltage ratio. The boost converter is based on a hysteretic controller topology
using synchronous rectification to obtain maximum efficiency at minimal quiescent currents. The output voltage of
the adjustable version can be programmed by an external resistor divider, or is set internally to a fixed output
voltage. The converter can be switched off by a featured enable pin. While being switched off, battery drain is
minimized. The device is offered in a 6-pin SC-70 package (DCK) measuring 2 mm x 2 mm to enable small
circuit layout size.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright 2009, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS61221DCKT | 功能描述:直流/直流开关调节器 Tiny Low Inp Vltg Boost Cnvrtr RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| TPS61222DCKR | 功能描述:直流/直流开关调节器 Tiny Low Inp Vltg Boost Cnvrtr RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| TPS61222DCKT | 功能描述:直流/直流开关调节器 Tiny Low Inp Vltg Boost Cnvrtr RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| TPS61222MDCKTEP | 功能描述:直流/直流开关转换器 Boost Converter with 5.5?A Quiescnt Crrnt RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| TPS61223DCKR | 制造商:Texas Instruments 功能描述: |
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