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TPS628521-Q1

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TPS628521-Q1

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Rating Automotive Topology Buck Iout (max) (A) 1 Vin (max) (V) 6 Vin (min) (V) 2.7 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features 1% accuracy, Enable, Forced PWM, Light load efficiency, Output discharge, Power good, Soft Start Adjustable, Synchronous Rectification, Wettable flanks package EMI & noise features Spread Spectrum Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000021 Duty cycle (max) (%) 100 TI functional safety category Functional Safety-Capable
Rating Automotive Topology Buck Iout (max) (A) 1 Vin (max) (V) 6 Vin (min) (V) 2.7 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features 1% accuracy, Enable, Forced PWM, Light load efficiency, Output discharge, Power good, Soft Start Adjustable, Synchronous Rectification, Wettable flanks package EMI & noise features Spread Spectrum Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000021 Duty cycle (max) (%) 100 TI functional safety category Functional Safety-Capable
WSON-HR (DLS) 8 3 mm² (2 mm × 1.5 mm)
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C TA
  • Wettable flanks
  • Designed for low EMI requirements
    • Optional pseudo-random spread spectrum reduces peak emissions
  • TJ = –40°C to +150°C
  • Family of 1A, 2A, and 3A (continuous) converters
  • Input voltage range: 2.7V to 6V
  • Quiescent current: 21µA typical
  • Shutdown current: 1.5µA typical
  • Output voltage from 0.6V to 5.5V
  • Output voltage accuracy ±1% (PWM operation)
  • Options of forced PWM or PWM, PFM operation
  • Switching frequency in PWM: 2.25MHz
  • Adjustable soft start-up to 10ms
  • Precise ENABLE input allows:
    • User-defined undervoltage lockout
    • Exact sequencing
  • Active output discharge
  • Foldback overcurrent protection – optional
  • Power-good output with window comparator
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C TA
  • Wettable flanks
  • Designed for low EMI requirements
    • Optional pseudo-random spread spectrum reduces peak emissions
  • TJ = –40°C to +150°C
  • Family of 1A, 2A, and 3A (continuous) converters
  • Input voltage range: 2.7V to 6V
  • Quiescent current: 21µA typical
  • Shutdown current: 1.5µA typical
  • Output voltage from 0.6V to 5.5V
  • Output voltage accuracy ±1% (PWM operation)
  • Options of forced PWM or PWM, PFM operation
  • Switching frequency in PWM: 2.25MHz
  • Adjustable soft start-up to 10ms
  • Precise ENABLE input allows:
    • User-defined undervoltage lockout
    • Exact sequencing
  • Active output discharge
  • Foldback overcurrent protection – optional
  • Power-good output with window comparator

The TPS62852x-Q1 are a family of pin-to-pin, 1A, 2A, and 3A, high efficiency, easy-to-use, synchronous step-down DC/DC converters. These devices are based on a peak current mode control topology and support tight switching frequency variation. These devices are designed for automotive applications such as infotainment and advanced driver assistance systems. Low resistive switches allow up to 3A continuous output current. In the TPS62852x-Q1, the switching frequency is internally fixed at 2.25MHz. The TPS62852x-Q1 automatically selects pulse width modulation (PWM) for higher power demand and pulse frequency mode (PFM) for power saving operation. This selection maintains high efficiency across the whole load range. The device exists also in options with forced PWM in cases where frequency stability requirements dominate. The family provides a 1% output voltage accuracy over the full temperature range in PWM mode, which helps designing power supplies for devices with very tight supply voltage accuracy requirements.

The TPS62852x-Q1 is available in an 8-pin, 2.0mm × 1.5mm, WSON package.

The TPS62852x-Q1 are a family of pin-to-pin, 1A, 2A, and 3A, high efficiency, easy-to-use, synchronous step-down DC/DC converters. These devices are based on a peak current mode control topology and support tight switching frequency variation. These devices are designed for automotive applications such as infotainment and advanced driver assistance systems. Low resistive switches allow up to 3A continuous output current. In the TPS62852x-Q1, the switching frequency is internally fixed at 2.25MHz. The TPS62852x-Q1 automatically selects pulse width modulation (PWM) for higher power demand and pulse frequency mode (PFM) for power saving operation. This selection maintains high efficiency across the whole load range. The device exists also in options with forced PWM in cases where frequency stability requirements dominate. The family provides a 1% output voltage accuracy over the full temperature range in PWM mode, which helps designing power supplies for devices with very tight supply voltage accuracy requirements.

The TPS62852x-Q1 is available in an 8-pin, 2.0mm × 1.5mm, WSON package.
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* 数据表 TPS62852x-Q1 2.7V to 6V, 1A, 2A, 3A, Automotive, Step-Down Converters in a WSON Package 数据表 (Rev. D) PDF | HTML 2026-9-29
功能安全信息 TPS628523HA-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 2025-1-23

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评估板

TPS628523HAQEVM-070 — TPS62852X-Q1 评估模块

TPS628523HAQEVM-070 旨在帮助用户轻松评估和测试 TPS628521-Q1、TPS628522-Q1 和 TPS628523-Q1 降压转换器的操作与功能。该评估模块 (EVM) 可将 2.7V 至 6V 的输入电压转换为 1.8V 的稳压输出电压，并提供高达 3A 的最大电流。EVM 上安装的 IC 是 TPS628523HAWDLSRQ1，其在整个负载电流范围内以强制 PWM 模式 (FPWM) 运行。TPS628523HAQEVM-070 及 IC 采用 2.0mm × 1.5mm QFN 封装。
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