5V/12V Synchronous-Rectified Buck Controller
Description
uP6101
5V/12V Synchronous-Rectified Buck Controller
General Description
The uP6101 is a compact synchronous-rectified buck controller specifically designed to operate from 5V or 12 supply voltage and to deliver high quality output voltage as low as 0.
6V (uP6101A) or 0.
8V (uP6101B/C).
This (P)SOP8 device operates at fixed 300kHz (uP6101A/B) or 200kHz (uP6101C) frequency and provides an optimal level of integration to reduce size and cost of the power supply.
This controller integrates internal MOSFET drivers that support 12V+12V bootstrapped voltage for high efficiency power conversion.
The bootstrap diode is built-in to simplify the circuit design and minimize external part count.
Other features include internal softstart, under voltage protection, over current protection and shutdown function.
With aforementioned functions, this part provides customers a compact, high efficiency, well-protected and cost-effective solutions.
This part comes to SOP-8 and PSOP-8 packages.
Features
Operates from 5V or 12V Supply Voltage 3.
3V to 12V VIN Input Range 0.
6V or 0.
8V to 80% of VIN Output Range 0.
6V or 0.
8V Internal Reference 1.
5% Over Line Voltage and Temperature Simple Single-Loop Control Design Voltage-Mode PWM Control Fast Transient Response High-Bandwidth Error Amplifier 0% to 80% Duty Cycle Lossless, Programmable Overcurrent Protection Uses Lower MOSFET RDS(ON) 300/200kHz Fixed Frequency Oscillator Internal SoftStart Integrated Boot Diode
Applications
Power Supplies for Microprocessors or Subsystem Power Supplies Cable Modems, Set Top Boxes, and DSL Modems Industrial Power Supplies; General Purpose Supplies 5V or 12V Input DC-DC Regulators Low-Voltage Distributed Power Supplies
Order Number uP6101AS8 uP6101BS8 uP6101BS8-A uP6101BU8 uP6101CSA8 SOP-8 SOP-8 SOP-8 PSOP-8 SOP-8
Ordering Information
P a ck a g e Remark 0.
6V reference voltage; 300kHz switching frequency 0.
8V reference voltage; 300kHz switching frequency 0.
8V reference ...
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