Datasheet > 1269AS-H-4ZR7N

1269AS-H-4ZR7N

更新时间： 2022-06-06 06:30:33

品牌	Logo	应用领域
德州仪器 - TI		转换器输入元件升压转换器
页数	文件大小	规格书
20页	1502K
描述
LOW INPUT VOLTAGE STEP-UP CONVERTER IN THIN SOT-23 PACKAGE

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1269AS-H-4ZR7N 数据手册

TLV61220

www.ti.com

SLVSB53 –MAY 2012

LOW INPUT VOLTAGE STEP-UP CONVERTER IN THIN SOT-23 PACKAGE

Check for Samples: TLV61220

FEATURES

APPLICATIONS

•

Up to 95% Efficiency at Typical Operating

Conditions

•

Battery Powered Applications

–

1 to 3 Cell Alkaline, NiCd or NiMH

1 Cell Li-Ion or Li-Primary

•

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:

•

Solar or Fuel Cell Powered Applications

Consumer and Portable Medical Products

Personal Care Products

White or Status LEDs

Smartphones

–

Output Overvoltage

Overtemperature

Input Undervoltage Lockout

•

Adjustable Output Voltage from 1.8 V to 5.5 V

Small 6-pin Thin SOT-23 Package

DESCRIPTION

The TLV61220 provides 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 packaged in a 6-pin thin SOT-23 package (DBV).

spacer

TLV61220

L₁4.7:H

VOUT

V_OUT

1.8V to 5.5V

R₁

R₂

VBAT

C₂

V_IN

10:F

0.7V to V_OUT

C₁

10:F

GND

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.

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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