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TPS54227

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采用 HSOP 和 VSON 封装的 4.5V 至 18V 输入、2A 同步降压转换器

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TPS562211 正在供货 采用 SOT583 封装且具有 1% 精度、PG/SS 和 PFM/强制 PWM 的 4.2V 至 18V、2A 同步降压转换器 This product has improved performance, selectable power good or soft start feature

产品详情

Rating Catalog Topology Buck Iout (max) (A) 2 Vin (max) (V) 18 Vin (min) (V) 4.5 Vout (max) (V) 7 Vout (min) (V) 0.76 Features Enable, Soft-start adjustable, Synchronous rectification Control mode D-CAP2 Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.0008 Duty cycle (max) (%) 65
Rating Catalog Topology Buck Iout (max) (A) 2 Vin (max) (V) 18 Vin (min) (V) 4.5 Vout (max) (V) 7 Vout (min) (V) 0.76 Features Enable, Soft-start adjustable, Synchronous rectification Control mode D-CAP2 Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.0008 Duty cycle (max) (%) 65
VSON (DRC) 10 9 mm² (3 mm × 3 mm) HSOIC (DDA) 8 29.4 mm² (4.9 mm × 6 mm)
  • D-CAP2™ Mode Enables Fast Transient
    Response
  • Low Output Ripple and Allows Ceramic Output
    Capacitor
  • Wide VIN Input Voltage Range: 4.5 V to 18 V
  • Output Voltage Range: 0.76 V to 7 V
  • Highly-Efficient Integrated FETs Optimized
    for Lower Duty Cycle Applications
    • 155 mΩ (High-Side) and 108 mΩ (Low-Side)
  • High Efficiency, Less Than 10 µA at Shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft-Start
  • Prebiased Soft-Start
  • 700-kHz Switching Frequency (fSW)
  • Cycle-By-Cycle Overcurrent Limit
  • D-CAP2™ Mode Enables Fast Transient
    Response
  • Low Output Ripple and Allows Ceramic Output
    Capacitor
  • Wide VIN Input Voltage Range: 4.5 V to 18 V
  • Output Voltage Range: 0.76 V to 7 V
  • Highly-Efficient Integrated FETs Optimized
    for Lower Duty Cycle Applications
    • 155 mΩ (High-Side) and 108 mΩ (Low-Side)
  • High Efficiency, Less Than 10 µA at Shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft-Start
  • Prebiased Soft-Start
  • 700-kHz Switching Frequency (fSW)
  • Cycle-By-Cycle Overcurrent Limit

The TPS54227 device is an adaptive ON-time D-CAP2 mode synchronous buck converter. The TPS54227 enables system designers to complete the bus regulators for a suite of various end equipment with a cost-effective, low component count, low standby current solution. The main control loop for the TPS54227 uses the D-CAP2 mode control which provides a fast transient response with no external compensation components. The TPS54227 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 7 V. The device also features an adjustable soft-start time. The TPS54227 is available in the 8-pin HSOP package and 10-pin VSON, and is designed to operate from –40°C to 85°C.

The TPS54227 device is an adaptive ON-time D-CAP2 mode synchronous buck converter. The TPS54227 enables system designers to complete the bus regulators for a suite of various end equipment with a cost-effective, low component count, low standby current solution. The main control loop for the TPS54227 uses the D-CAP2 mode control which provides a fast transient response with no external compensation components. The TPS54227 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 7 V. The device also features an adjustable soft-start time. The TPS54227 is available in the 8-pin HSOP package and 10-pin VSON, and is designed to operate from –40°C to 85°C.

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技术文档

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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 TPS54227 4.5-V to 18-V Input, 2-A Synchronous Step-Down Converter 数据表 (Rev. C) PDF | HTML 2015-12-30
选择指南 电源管理指南 2018 2018-7-31
应用手册 基于带有纹波注入谷底检测定导通时间频域分析的D-CAP2™频率响应模型 英语版 2015-9-2

设计与开发

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评估板

TPS54227EVM-686 — 用于 TPS54227 同步降压转换器的评估模块

TPS54227EVM-686 是一款组装完备且经过测试的电路,用于评估 TPS54227 同步降压转换器。TPS54227EVM-686 在 4.5V 至 18V 输入电压范围内运行,且可在最高 2A 的负载下提供 1.05V 的输出电压。TPS54227 的主控制环路采用 D-CAP2™ 模式控制,无需在相位补偿中使用外部组件即可实现超快的瞬态响应。

用户指南: PDF | HTML
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仿真模型

TPS54227 TINA-TI Transient Reference Design

SLVM384.TSC (654 KB) - TINA-TI 参考设计
支持的产品和硬件
仿真模型

TPS54227 TINA-TI Transient Spice Model

SLVM383.ZIP (41 KB) - TINA-TI Spice 模型
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仿真模型

TPS54227 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM145A.ZIP (43 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 (DRC) 10 Ultra Librarian
HSOIC (DDA) 8 Ultra Librarian

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