Серия DC-DC интегральных преобразователей RT7251

Richtek

Общие характеристики

 Раздел DC-DC преобразователи интегральные
Корпус DFN-8 UDFN8
Режим преобразования
Максимальный выходной ток
Встроенные возможности
Рабочая температура

Документация на серию RT7251

® RT7251A/B 1.5A, 17V, 340/800kHz Synchronous Step-Down Converter General Description Features The RT7251A/B is a high efficiency, monolithic synchronous step-down DC-DC converter that can operate at 340kHz/800kHz, while delivering up to 1.5A output current from a 4V to 17V input supply. The RT7251A/B's current mode architecture allows the transient response to be optimized. Cycle-by-cycle current limit provides protection against shorted outputs and soft-start eliminates input current surge during start-up. Fault conditions also include output under voltage protection, output over voltage protection and thermal shutdown. The low current (<5μA) shutdown mode provides output disconnection, enabling easy power management in battery-powered systems. The RT7251A/B is available in a WDFN-8L 2x2 package.  4V to 17V Input Voltage Range  1.5A Output Current Internal N-MOSFETs Current Mode Control Fixed Frequency Operation : 340kHz/800kHz Output Adjustable from 0.8V to 12V Up to 95% Efficiency Internal Compensation Stable with Low ESR Ceramic Output Capacitors Cycle-by-Cycle Over Current Protection Input Under Voltage Lockout Output Under Voltage Protection Output Over Voltage Protection Power Good Indicator Thermal Shutdown Protection RoHS Compliant and Halogen Free             Ordering Information  RT7251A/B  Package Type QW : WDFN-8L 2x2 (W-Type) Lead Plating System Z : ECO (Ecological Element with Halogen Free and Pb free) Note : A : 340kHz B : 800kHz Richtek products are :     Industrial and Commercial Low Power Systems Computer Peripherals LCD Monitors and TVs Green Electronics/Appliances Point of Load Regulation for High-Performance DSPs, FPGAs, and ASICs RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.   Pin Configuration Suitable for use in SnPb or Pb-free soldering processes. Marking Information RT7251AZQW 03 : Product Code 03W (TOP VIEW) SW VIN BOOT EN 1 2 3 4 GND  Applications 9 8 7 6 5 GND GND PGOOD FB WDFN-8L 2x2 W : Date Code RT7251BZQW 70 : Product Code 70W W : Date Code Copyright © 2018 Richtek Technology Corporation. All rights reserved. DS7251A/B-02 June 2018 is a registered trademark of Richtek Technology Corporation. www.richtek.com 1 PDF
Документация на RT7251AZQW 

1.5A, 17V, 340/800kHz Synchronous Step-Down Converter The RT7251A/B is a high efficiency, monolithic synchronous step-down DC-DC ,converter that can operate at 340kHz/800kHz, while delivering up to 1.5A output ,current from a 4V to 17V i...

Дата модификации: 04.10.2018

Размер: 218.2 Кб

14 стр.

    Товары серии RT7251

    Наименование i Упаковка F преобр
    RT7251AZQW (RICHTEK)
     
     
    RT7251BZQW (RICHTEK)
     
     
    		 25 шт