ホーム パワー・マネージメント AC/DC と DC/DC の各コントローラ (外部 FET)
ホーム
パワー・マネージメント
AC/DC と DC/DC の各コントローラ (外部 FET)

UCC3585

新規設計での使用を推奨しません

低電圧、同期整流降圧コントローラ

ご注文はこちら
データシート

UCC3585

新規設計での使用を推奨しません
データシート ご注文はこちら

製品詳細

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 Features Enable Iq (typ) (µA) 2300 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 Features Enable Iq (typ) (µA) 2300 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.
filter その他の AC/DC と DC/DC の各コントローラ (外部 FET) を検索
ダウンロード

技術資料

star =TI が選定したこの製品の主要ドキュメント
結果が見つかりませんでした。検索条件をクリアしてから、再度検索を試してください。
1 をすべて表示
種類 タイトル 最新の英語版をダウンロード 日付
* データシート Low Voltage Synchronous Buck Controller データシート (Rev. F) 2005年 1月 10日

購入と品質

記載されている情報：
  • RoHS
  • REACH
  • デバイスのマーキング
  • リード端子の仕上げ / ボールの原材料
  • MSL 定格 / ピーク リフロー
  • MTBF/FIT 推定値
  • 使用原材料
  • 認定試験結果
  • 継続的な信頼性モニタ試験結果
記載されている情報：
  • ファブの拠点
  • 組み立てを実施した拠点