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TPS40222

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TPS40222

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产品详情

Rating Catalog Iout (max) (A) 1.6 Vin (max) (V) 8 Vin (min) (V) 4.5 Vout (max) (V) 7 Vout (min) (V) 0.8 Control mode current mode Features UVLO fixed Duty cycle (max) (%) 90 Iq (typ) (A) 0.001 Number of phases 1 Operating temperature range (°C) -40 to 125
Rating Catalog Iout (max) (A) 1.6 Vin (max) (V) 8 Vin (min) (V) 4.5 Vout (max) (V) 7 Vout (min) (V) 0.8 Control mode current mode Features UVLO fixed Duty cycle (max) (%) 90 Iq (typ) (A) 0.001 Number of phases 1 Operating temperature range (°C) -40 to 125
VSON (DRP) 6 9 mm² (3 mm × 3 mm)
  • Input Voltage Range 4.5 VDC to 8 VDC
  • Output Voltage (0.8 V to 90% VIN)
  • 0 A to 1.6 A Current Capability
  • Fixed 1.25-MHz Switching Frequency
  • Reference 0.8 V ±1%
  • Internal 250 m N-Channel MOSFET Switch
  • Current Mode Control with Internal Slope Compensation
  • Internal Soft-Start
  • Internal Loop Compensation
  • Short Circuit Protection
  • Thermal Shutdown
  • High Efficiency Up to 92%
  • Small 3 mm × 3 mm SON Package
  • APPLICATIONS
    • Disk Drives
    • Set Top Box
    • Point of Load Power
    • ASIC Power Supplies
  • Input Voltage Range 4.5 VDC to 8 VDC
  • Output Voltage (0.8 V to 90% VIN)
  • 0 A to 1.6 A Current Capability
  • Fixed 1.25-MHz Switching Frequency
  • Reference 0.8 V ±1%
  • Internal 250 m N-Channel MOSFET Switch
  • Current Mode Control with Internal Slope Compensation
  • Internal Soft-Start
  • Internal Loop Compensation
  • Short Circuit Protection
  • Thermal Shutdown
  • High Efficiency Up to 92%
  • Small 3 mm × 3 mm SON Package
  • APPLICATIONS
    • Disk Drives
    • Set Top Box
    • Point of Load Power
    • ASIC Power Supplies

The TPS40222 is a fixed-frequency, current-mode, non-synchronous buck converter optimized for applications powered by a 5-V distributed source. With internally determined operating frequency, soft-start time, and control loop compensation, the TPS40222 provides many features with a minimum of external components.

The TPS40222 operates at 1.25 MHz and supports up to 1.6-A output loads. The output voltage can be programmed to as low as 0.8 V. The TPS40222 utilizes pulse-by-pulse current limit as well as frequency foldback to protect the converter during a catastrophic short circuited output condition.

The TPS40222 is a fixed-frequency, current-mode, non-synchronous buck converter optimized for applications powered by a 5-V distributed source. With internally determined operating frequency, soft-start time, and control loop compensation, the TPS40222 provides many features with a minimum of external components.

The TPS40222 operates at 1.25 MHz and supports up to 1.6-A output loads. The output voltage can be programmed to as low as 0.8 V. The TPS40222 utilizes pulse-by-pulse current limit as well as frequency foldback to protect the converter during a catastrophic short circuited output condition.
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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 1.6-A, 1.25-MHz BUCK CONVERTER 数据表 (Rev. A) 2005-12-30
用户指南 Using the TPS40222, a 5-V Input 1.6-A Output Nonsynchronous Buck Converter 2006-4-18

设计与开发

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仿真模型

TPS40222 TINA-TI Average Reference Design

SLVM010.ZIP (214 KB) - TINA-TI 参考设计
支持的产品和硬件
仿真模型

TPS40222 TINA-TI Average Spice Model

SLVM011.ZIP (4 KB) - TINA-TI Spice 模型
支持的产品和硬件
仿真模型

TPS40222 TINA-TI Transient Reference Design (Rev. C)

SLVC166 (96 KB) - TINA-TI 参考设计
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仿真模型

TPS40222 TINA-TI Transient Spice Model

SLVM009.ZIP (11 KB) - TINA-TI Spice 模型
支持的产品和硬件
仿真模型

TPS40222 Unencrypted PSpice Model Package (Rev. D)

SLVC158D.ZIP (138 KB) - PSpice 模型
支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
VSON (DRP) 6 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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