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TPS6734

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固定 12V 120MA 升压转换器电源

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TPS61089 正在供货 采用 2.0mm x 2.5mm VQFN 封装的 12.6V、7A 全集成同步升压转换器 Wider operating range, smaller solution size and higher efficiency and lower quiescent current

TPS6734

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产品详情

Vin (min) (V) 2.7 Vin (max) (V) 12 Topology Boost Type Converter Switching frequency (min) (kHz) 170 Switching frequency (max) (kHz) 170 Features Enable Vout (min) (V) 12 Vout (max) (V) 12 Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.0012
Vin (min) (V) 2.7 Vin (max) (V) 12 Topology Boost Type Converter Switching frequency (min) (kHz) 170 Switching frequency (max) (kHz) 170 Features Enable Vout (min) (V) 12 Vout (max) (V) 12 Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.0012
PDIP (P) 8 92.5083 mm² 9.81 x 9.43 SOIC (D) 8 29.4 mm² 4.9 x 6
  • Pin-for-Pin Compatible With MAX734
  • Programming Voltage for Flash Memory
  • 2.7-V to 11-V Input Operating Range
  • Output Current of 120 mA or Greater From 3.75-V or Higher Input
  • 3-uA Maximum Supply Current in Shutdown
  • Only 5 External Components Required
  • High Efficiency...85% Typical (5-V Input, 120-mA Output)
  • 8-Pin SOIC and DIP Packages
  • - 40°C to 85°C Free-Air Operating Temperature Range
  • Pin-for-Pin Compatible With MAX734
  • Programming Voltage for Flash Memory
  • 2.7-V to 11-V Input Operating Range
  • Output Current of 120 mA or Greater From 3.75-V or Higher Input
  • 3-uA Maximum Supply Current in Shutdown
  • Only 5 External Components Required
  • High Efficiency...85% Typical (5-V Input, 120-mA Output)
  • 8-Pin SOIC and DIP Packages
  • - 40°C to 85°C Free-Air Operating Temperature Range

The TPS6734 is a fixed 12-V output boost converter capable of delivering 120 mA from inputs as low as
3.75 V. The device is pin-for-pin compatible with the MAX734 regulator and offers the following advantages: lower supply current, wider operating input-voltage range, and higher output currents. As shown in Figure 1, the only external components required are: an inductor, a Schottky rectifier, an output filter capacitor, an input filter capacitor, and a small capacitor for loop compensation. The entire converter occupies less than 0.7 in2 of PCB space when implemented with surface-mount components. An enable input is provided to shut down the converter and reduce the supply current to 3 uA when 12 V is not needed.

The TPS6734 is a 170-kHz current-mode PWM ( pulse-width modulation) controller with an n-channel MOSFET power switch. Gate drive for the switch is derived from the 12-V output after start-up to minimize the die area needed to realize the 0.7- MOSFET and improve efficiency at input voltages below 5 V. Soft start is accomplished with the addition of one small capacitor. A 1.22-V reference (pin 2) is brought out for external use.

High efficiency at low supply voltages and low supply current in shutdown make the TPS6734 particularly attractive for flash memory programming supplies, PCMCIA cards, and operational amplifiers in battery-powered equipment. The TPS6734 is available in 8-pin DIP and SOIC packages and operates over a free-air temperature range of -40°C to 85°C.


Figure 1. Typical Operating Circuit

The D package is available taped and reeled. Add the suffix R
to the device type (e.g., TPS6734IDR).

The TPS6734 is a fixed 12-V output boost converter capable of delivering 120 mA from inputs as low as
3.75 V. The device is pin-for-pin compatible with the MAX734 regulator and offers the following advantages: lower supply current, wider operating input-voltage range, and higher output currents. As shown in Figure 1, the only external components required are: an inductor, a Schottky rectifier, an output filter capacitor, an input filter capacitor, and a small capacitor for loop compensation. The entire converter occupies less than 0.7 in2 of PCB space when implemented with surface-mount components. An enable input is provided to shut down the converter and reduce the supply current to 3 uA when 12 V is not needed.

The TPS6734 is a 170-kHz current-mode PWM ( pulse-width modulation) controller with an n-channel MOSFET power switch. Gate drive for the switch is derived from the 12-V output after start-up to minimize the die area needed to realize the 0.7- MOSFET and improve efficiency at input voltages below 5 V. Soft start is accomplished with the addition of one small capacitor. A 1.22-V reference (pin 2) is brought out for external use.

High efficiency at low supply voltages and low supply current in shutdown make the TPS6734 particularly attractive for flash memory programming supplies, PCMCIA cards, and operational amplifiers in battery-powered equipment. The TPS6734 is available in 8-pin DIP and SOIC packages and operates over a free-air temperature range of -40°C to 85°C.


Figure 1. Typical Operating Circuit

The D package is available taped and reeled. Add the suffix R
to the device type (e.g., TPS6734IDR).
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技术文档

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类型 标题 下载最新的英语版本 日期
* 数据表 Fixed 12-V 120-mA Boost-Converter Supply 数据表 (Rev. A) 1999年 1月 19日
应用手册 Understanding Inverting Buck-Boost Power Stages in Switch Mode Power Supplies (Rev. B) 2019年 3月 12日
应用手册 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A) 最新英语版本 (Rev.B) 2005年 11月 7日
应用手册 了解开关模式电源中的升压功率级 1999年 3月 4日
应用手册 了解开关模式电源中的降压功率级 1999年 3月 4日

设计和开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

计算工具

TPS6734CALC — TPS6734 External Resistor Divider Calculator

This spreadsheet shows the effects of an external resistor divider network on the TPS6734 fixed 12 V boost converter.

支持的产品和硬件

支持的产品和硬件

产品
AC/DC & DC/DC converters (integrated FET)
TPS6734 — 固定 12V 120MA 升压转换器电源
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封装 引脚 下载
PDIP (P) 8 查看选项
SOIC (D) 8 查看选项
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订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

支持和培训

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