DC-DC преобразователи интегральные TPS62054DGS

Синхронный понижающий импульсный стабилизатор , фиксированный, 2.7В-10В (Vin), 1.8В и 800мА, VSSOP-10

The TPS62054DGS is a synchronous Step-down DC-to-DC Converter ideally suited for systems powered from a 1- or 2-cell Li-ion battery or from a 3- to 5-cell NiCd, NiMH or alkaline battery. It is a synchronous pulse width modulation (PWM) converter with integrated N- and P-channel power MOSFET switch. Synchronous rectification increases efficiency and reduces external component count. To achieve highest efficiency over a wide load current range, the converter enters a power-saving pulse frequency modulation (PFM) mode at light load currents. Operating frequency is typically 850kHz, allowing the use of small inductor and capacitor values. The device can be synchronized to an external clock signal in the range of 600kHz to 1.2MHz. For low noise operation, the converter can be programmed into forced-fixed frequency in PWM mode. In shutdown mode, the current consumption is reduced to less than 2µA.

• High-efficiency synchronous step-down converter with up to 95% efficiency
• High-efficiency over a wide load current range in power-save mode
• 100% Maximum duty cycle for lowest dropout
• Low-noise operation in forced fixed-frequency PWM operation mode
• Internal soft-start
• Overtemperature and overcurrent protected
• Green product and no Sb/Br

Области применения

Связь и Сеть, Компьютеры и Периферия, Потребительская Электроника, Управление Питанием