主页 电源管理 AC/DC & DC/DC controllers (external FET)
主页
电源管理
AC/DC & DC/DC controllers (external FET)

UCC3585

不推荐用于新设计

低压同步降压控制器

立即订购
数据表

UCC3585

不推荐用于新设计
数据表 立即订购

产品详情

Vin (min) (V) 3 Vin (max) (V) 5.5 Iout (max) (A) 0.5 Operating temperature range (°C) 0 to 85 Rating Catalog Vout (min) (V) 0.9 Vout (max) (V) 5 Iq (typ) (A) 0.0023 Duty cycle (max) (%) 100
Vin (min) (V) 3 Vin (max) (V) 5.5 Iout (max) (A) 0.5 Operating temperature range (°C) 0 to 85 Rating Catalog Vout (min) (V) 0.9 Vout (max) (V) 5 Iq (typ) (A) 0.0023 Duty cycle (max) (%) 100
SOIC (D) 16 59.4 mm² 9.9 x 6
  • VOUT Resistor Programmable Down to 0.9 V
  • 3.3-V or 5.0-V Input Supply
  • 1% DC Accuracy
  • High Efficiency Synchronous Switching
  • Drives P-Channel (High Side) and N-Channel (Low Side) MOSFETs
  • Lossless Programmable Current Limit
  • Logic Compatible Shutdown
  • APPLICATIONS
    • Local Microprocessor Core Voltage Power Supplies for Desktop and Notebook Computers
    • DSP Core or I/O Powering
    • High-Speed GTL Bus Regulation
  • VOUT Resistor Programmable Down to 0.9 V
  • 3.3-V or 5.0-V Input Supply
  • 1% DC Accuracy
  • High Efficiency Synchronous Switching
  • Drives P-Channel (High Side) and N-Channel (Low Side) MOSFETs
  • Lossless Programmable Current Limit
  • Logic Compatible Shutdown
  • APPLICATIONS
    • Local Microprocessor Core Voltage Power Supplies for Desktop and Notebook Computers
    • DSP Core or I/O Powering
    • High-Speed GTL Bus Regulation

The UCC3585 synchronous buck controller provides flexible high efficiency power conversion for output voltages as low as 0.9 V with ensured ±1% dc accuracy. With an input voltage range of 3.0 V to 5.5 V, it is the ideal choice for 3.3 V only, 5.0 V only, or other low voltage systems. The fixed frequency oscillator is capable of providing practical PWM operation to 500 kHz.

The UCC3585 drives a complementary pair of power MOSFET transistors. A P-channel on the high side, and an N-channel on the low side step down the input voltage at up to 90% efficiency.

A programmable two-level current limiting function is provided by sensing the voltage drop across the high side P-channel MOSFET. This circuit can be configured to provide pulse-by-pulse limiting, timed shutdown after seven consecutive faults, or latch-off after fault detection, allowing maximum application flexibility. The current limit threshold can be programmed over a wide range with a single resistor.

The UCC3585 also includes undervoltage lockout, a logic controlled enable, and softstart functions. The UCC3585 is offered in the 16-pin surface mount and through-hole packages.

The UCC3585 synchronous buck controller provides flexible high efficiency power conversion for output voltages as low as 0.9 V with ensured ±1% dc accuracy. With an input voltage range of 3.0 V to 5.5 V, it is the ideal choice for 3.3 V only, 5.0 V only, or other low voltage systems. The fixed frequency oscillator is capable of providing practical PWM operation to 500 kHz.

The UCC3585 drives a complementary pair of power MOSFET transistors. A P-channel on the high side, and an N-channel on the low side step down the input voltage at up to 90% efficiency.

A programmable two-level current limiting function is provided by sensing the voltage drop across the high side P-channel MOSFET. This circuit can be configured to provide pulse-by-pulse limiting, timed shutdown after seven consecutive faults, or latch-off after fault detection, allowing maximum application flexibility. The current limit threshold can be programmed over a wide range with a single resistor.

The UCC3585 also includes undervoltage lockout, a logic controlled enable, and softstart functions. The UCC3585 is offered in the 16-pin surface mount and through-hole packages.
open-in-new 查找其他 AC/DC & DC/DC controllers (external FET)
下载 观看带字幕的视频 视频

技术文档

star =有关此产品的 TI 精选热门文档
未找到结果。请清除搜索并重试。
查看全部 3
类型 标题 下载最新的英语版本 日期
* 数据表 Low Voltage Synchronous Buck Controller 数据表 (Rev. F) 2005年 1月 10日
用户指南 UCC3585 Low Voltage Synchronous Buck Converter Evaluation Board 2001年 2月 8日
应用手册 Power Supply Sequencing Solutions for Dual Supply Voltage DSPs (Rev. A) 2000年 7月 5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）。

封装 引脚 下载
SOIC (D) 16 查看选项
应遵守 TI 评估类商品的标准条款与条件。

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

视频