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TPSM828511

現行

採用 QFN 封裝，且具整合式電感器的 2.7-V 至 6-V、1-A 低雜訊降壓模組

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產品規格表

TPSM828511

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Operating temperature range (°C) -40 to 125 Type Converter Iout (max) (A) 1 Vin (min) (V) 2.7 Vin (max) (V) 6 Vout (min) (V) 0.6 Vout (max) (V) 5.5 Switching frequency (min) (kHz) 4000 Switching frequency (max) (kHz) 1800 Features 1% accuracy, Enable, Forced PWM, Frequency synchronization, Light load efficiency, Output discharge, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking, UVLO adjustable Control mode current mode Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 125 Type Converter Iout (max) (A) 1 Vin (min) (V) 2.7 Vin (max) (V) 6 Vout (min) (V) 0.6 Vout (max) (V) 5.5 Switching frequency (min) (kHz) 4000 Switching frequency (max) (kHz) 1800 Features 1% accuracy, Enable, Forced PWM, Frequency synchronization, Light load efficiency, Output discharge, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking, UVLO adjustable Control mode current mode Duty cycle (max) (%) 100
QFN-FCMOD (RDY) 9 8.1 mm² 2.7 x 3
  • 2.7-V to 6-V input voltage range
  • 0.6-V to 5.5-V output voltage range
  • Family of 0.5-A, 1-A and 2-A devices
  • 20-µA typical quiescent current
  • ±1% feedback voltage accuracy (PWM operation)
  • 2.25-MHz switching frequency (PWM operation)
  • 1.8-MHz to 4-MHz external synchronization
  • Selectable forced PWM or PFM/PWM operation
  • Adjustable soft start-up to 10 ms or tracking
  • Precise ENABLE input allows
    • User-defined undervoltage lockout
    • Exact sequencing
  • 100% duty cycle mode
  • Active output discharge
  • Power-good output with window comparator
  • –40°C to 125°C operating temperature range
  • 2.7-mm × 3.0-mm QFN package with 0.5-mm pitch
  • 2.7-V to 6-V input voltage range
  • 0.6-V to 5.5-V output voltage range
  • Family of 0.5-A, 1-A and 2-A devices
  • 20-µA typical quiescent current
  • ±1% feedback voltage accuracy (PWM operation)
  • 2.25-MHz switching frequency (PWM operation)
  • 1.8-MHz to 4-MHz external synchronization
  • Selectable forced PWM or PFM/PWM operation
  • Adjustable soft start-up to 10 ms or tracking
  • Precise ENABLE input allows
    • User-defined undervoltage lockout
    • Exact sequencing
  • 100% duty cycle mode
  • Active output discharge
  • Power-good output with window comparator
  • –40°C to 125°C operating temperature range
  • 2.7-mm × 3.0-mm QFN package with 0.5-mm pitch

TPSM82851x is a family of pin-to-pin compatible, 0.5-A, 1-A, and 2-A high-efficiency and easy to use synchronous step-down DC/DC power modules with integrated inductors. The devices are based on a fixed-frequency peak current-mode control topology and they can be used in telecommunication, test and measurement, and medical applications with high power density and ease of use requirements. Low resistance switches allow up to 2-A continuous output current at high ambient temperatures. The switching frequency is internally fixed at 2.25 MHz and can also be synchronized to an external clock in the range from 1.8 MHz to 4 MHz. In PFM/PWM mode, the TPSM82851x automatically enters power save mode at light loads to maintain high efficiency across the whole load range. The TPSM82851x provides a 1% feedback voltage accuracy in PWM mode which helps design a power supply with high output voltage accuracy. The SS/TR pin sets the start-up time or tracks the output voltage to an external source. This feature allows external sequencing of different supply rails and limits the inrush current during start-up.

TPSM82851x is a family of pin-to-pin compatible, 0.5-A, 1-A, and 2-A high-efficiency and easy to use synchronous step-down DC/DC power modules with integrated inductors. The devices are based on a fixed-frequency peak current-mode control topology and they can be used in telecommunication, test and measurement, and medical applications with high power density and ease of use requirements. Low resistance switches allow up to 2-A continuous output current at high ambient temperatures. The switching frequency is internally fixed at 2.25 MHz and can also be synchronized to an external clock in the range from 1.8 MHz to 4 MHz. In PFM/PWM mode, the TPSM82851x automatically enters power save mode at light loads to maintain high efficiency across the whole load range. The TPSM82851x provides a 1% feedback voltage accuracy in PWM mode which helps design a power supply with high output voltage accuracy. The SS/TR pin sets the start-up time or tracks the output voltage to an external source. This feature allows external sequencing of different supply rails and limits the inrush current during start-up.
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類型 標題 日期
* Data sheet TPSM82851x 2.7-V to 6-V Input, 0.5-A/1-A/2-A Step-Down Power Module With Integrated Inductor datasheet PDF | HTML 2023年 11月 8日
Certificate TPSM828511EVM EU Declaration of Conformity (DoC) 2023年 6月 14日
EVM User's guide TPSM82851xEVM Evaluation Module User's Guide PDF | HTML 2023年 6月 13日

設計與開發

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開發板

TPSM828511EVM — TPSM828511 評估模組適用於具整合式電感器的 2.7-V 至 6-V、1-A 降壓轉換器

TPSM828511 評估模組 (EVM) 可幫助對 TPSM828511 的評估，其為一款採用 2.7mm × 3mm × 2mm 過壓成型 QFN 封裝的 1A 降壓式轉換器電源模組。EVM 使用 2.7V 至 6V 輸入電壓將輸出電壓調節至 1.8V。TPSM828511 裝置為針對小型解決方案尺寸與高效率進行最佳化的同步降壓式轉換器。內部補償電路可實現具小型外部元件的精巧解決方案。

使用指南: PDF | HTML
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TPSM828511 PSpice Unencrypted Transient Model

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