Серия DC-DC модульных преобразователей RT6253

Richtek

Общие характеристики

 Раздел DC-DC модульные преобразователи
Возможности
Схема параллельного включения
Сертификаты медицинские
Монтаж
Входное напряжение
Напряжение 1 выхода
Ток 1 выхода
Рабочая температура

Документация на серию RT6253

RT6253A/B 17V Input, 3A, ACOT® Buck Converter with Both FETs OC Protection General Description Features The RT6253A/B is a simple, easy-to-use, 3A synchronous step-down DC-DC converter with an input supply voltage range of 4.5V to 17V. The device ⚫ ⚫ Integrated 95m and 50m FETs Continuous Current  TSOT-23-6 possesses an accurate reference voltage and integrates low RDS(ON) power MOSFETs to achieve high efficiency.  (FC) : 3A SOT-563 (FC) : 2.5A Input Supply Voltage Range : 4.5V to 17V Output Voltage Range : 0.765V to 7V ® ⚫ Advanced Constant On-Time (ACOT ) Control  Ultrafast Transient Response  Optimized for Low-ESR Ceramic Output Capacitors ⚫ High Accuracy Feedback Reference Voltage : 1% ⚫ Optional for Operation Modes : ⚫ ⚫ The RT6253A/B adopts Advanced Constant On-Time (ACOT® ) control architecture to provide an ultrafast transient response with few external components and to operate in nearly constant switching frequency over the line, load, and output voltage range. The RT6253A operates in automatic PSM that maintains high efficiency during light load operation. The RT6253B operates in Forced PWM that helps meet tight voltage regulation accuracy requirements. ⚫ The RT6253A/B senses both FETs current for a robust over-current protection (OCP). The device features cycle-by-cycle current limit protection to prevent the device from the catastrophic damage in output short circuit, over-current or inductor saturation conditions. A built-in soft-start function prevents inrush current during start-up. The device also includes input under-voltage lockout, output under-voltage protection, and overtemperature protection (OTP) to provide safe and ⚫ ⚫ ⚫ ⚫  RT6253A : Power Saving Mode (PSM)  RT6253B : Forced PWM Mode Fixed Switching Frequency : 580kHz Enable Control and Fixed Soft-Start with typ. 1ms Safe Start-Up from Pre-biased Output Input Under-Voltage Lockout (UVLO) Protection Function  Output Under-Voltage Protection (UVP) with Hiccup Mode  High- / Low-side MOSFET OCP and OTP Function smooth operation in all operating conditions. ⚫ RoHS Compliant and Halogen Free Simplified Application Circuit RT6253A/B VIN VIN RBOOT (Optional) BOOT CBOOT CIN L VOUT SW Enable EN RFB1 GND CFF COUT FB RFB2 Copyright © 2021 Richtek Technology Corporation. All rights reserved. DS6253A/B-03 October 2021 is a registered trademark of Richtek Technology Corporation. www.richtek.com 1 PDF
Документация на RT6253BHGH6F 

17V Input, 3A, ACOT® Buck Converter with Both FETs OC Protection The RT6253A/B is a simple, easy-to-use, 3A synchronous step-down DC-DC ,converter with an input supply voltage range of 4.5V to 17V. The device ,possesses an accurate refer...

Дата модификации: 23.11.2021

Размер: 1.29 Мб

31 стр.

    Товары серии RT6253

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