Datasheet > TPS61220_15

TPS61220_15

更新时间： 2024-11-16 01:12:15

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
27页	1512K
描述
TPS6122x Low Input Voltage, 0.7V Boost Converter With 5.5Î¼A Quiescent Current

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TPS61220, TPS61221, TPS61222

SLVS776B –JANUARY 2009–REVISED NOVEMBER 2014

TPS6122x Low Input Voltage, 0.7V Boost Converter With 5.5μA Quiescent Current

1 Features

3 Description

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.

•

Up to 95% Efficiency at Typical Operating

Conditions

•

5.5 μA Quiescent Current

Startup Into Load at 0.7 V Input Voltage

Operating Input Voltage from 0.7 V to 5.5 V

Pass-Through Function during Shutdown

Minimum Switching Current 200 mA

Protections:

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.

–

Output Overvoltage

Overtemperature

Input Undervoltage Lockout

•

Adjustable Output Voltage from 1.8 V to 6 V

Fixed Output Voltage Versions

Device Information⁽¹⁾

Small 6-pin SC-70 Package

PART NUMBER

TPS61220

PACKAGE

BODY SIZE (NOM)

2 Applications

•

Battery Powered Applications

TPS61221

SC-70 (6)

2.00mm x 1.25mm

TPS61222

–

1 to 3 Cell Alkaline, NiCd or NiMH

1 cell Li-Ion or Li-Primary

(1) For all available packages, see the orderable addendum at

the end of this document.

•

Solar or Fuel Cell Powered Applications

Consumer and Portable Medical Products

Personal Care Products

White or Status LEDs

Smartphones

4 Simplified Schematic

L₁

VOUT

OUT

= 3.3V)

OUT

Efficiency vs Output Current and Input Voltage

4.7

C₂

10µF

1.8 V to 6 V

R₁

R₂

0.8

VIN

≥ 70%

0.7 V to V

OUT

C₁

1.3

1.8

2.3

2.8

10µF

≥

80%

GND

TPS61220

≥ 90%

0.01

0.1

100

- Output Current - mA

OUT

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...27

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与TPS61220_15相关器件

型号	品牌	获取价格	描述	数据表
TPS61220DCKR	TI	获取价格	具有 5.5μA 静态电流的 0.7V 输入电压、可调节输出电压升压转换器 \| DCK \|
TPS61220DCKT	TI	获取价格	具有 5.5μA 静态电流的 0.7V 输入电压、可调节输出电压升压转换器 \| DCK \|
TPS61221	TI	获取价格	TPS6122x Low Input Voltage, 0.7V Boost Conver
TPS61221DCKR	TI	获取价格	具有 5.5μA 静态电流的 0.7V 输入电压、3.3V 固定输出电压升压转换器 \| D
TPS61221DCKT	TI	获取价格	具有 5.5μA 静态电流的 0.7V 输入电压、3.3V 固定输出电压升压转换器 \| D
TPS61222	TI	获取价格	TPS6122x Low Input Voltage, 0.7V Boost Conver
TPS61222DCK	TI	获取价格	LOW INPUT VOLTAGE STEP-UP CONVERTER IN 6 PIN SC-70 PACKAGE
TPS61222DCKR	TI	获取价格	5V output voltage, tiny low input voltage boost converter 6-SC70 -40 to 85
TPS61222DCKT	TI	获取价格	5V output voltage, tiny low input voltage boost converter 6-SC70 -40 to 85
TPS61222-EP	TI	获取价格	具有 5.5μA 静态电流的 0.7V 输入电压、5V 固定输出电压升压转换器

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