HIP6013
Buck Pulse-Width Modulator (PWM) Controller
Key Features
- Drives N-Channel MOSFET
- Operates From +5V or +12V Input
- Simple Single-Loop Control Design
- Voltage-Mode PWM Control
- Fast Transient Response
- High-Bandwidth Error Amplifier
- Full 0% to 100% Duty Ratio
- Excellent Output Voltage Regulation
- 1.27V Internal Reference
- ±1.5% Over Line Voltage and Temperature
- Over-Current Fault Monitor
- Does Not Require Extra Current Sensing Element
- Uses MOSFET's rDS(on)
- Small Converter Size
- Constant Frequency Operation
- 200kHz Free-Running Oscillator Programmable from 50kHz to Over 1MHz
- 14 Ld, SOIC Package
- Pb-Free Plus Anneal Available (RoHS Compliant)
Description
The HIP6013 provides complete control and protection for a DC-DC converter optimized for high-performance microprocessor applications. It is designed to drive an N-Channel MOSFET in a standard buck topology. The HIP6013 integrates all of the control, output adjustment, monitoring and protection functions into a single package.
The output voltage of the converter can be precisely regulated to as low as 1.27V, with a maximum tolerance of ±1.5% over temperature and line voltage variations.
The HIP6013 provides simple, single feedback loop, voltagemode control with fast transient response. It includes a 200kHz free-running triangle-wave oscillator that is adjustable from below 50kHz to over 1MHz. The error amplifier features a 15MHz gain-bandwidth product and 6V/µs slew rate which enables high converter bandwidth for fast transient performance. The resulting PWM duty ratio ranges from 0% to 100%.
The HIP6013 protects against over-current conditions by inhibiting PWM operation. The HIP6013 monitors the current by using the rDS(ON) of the upper MOSFET which eliminates the need for a current sensing resistor.
Applications
- Power Supply for Pentium®, Pentium Pro, PowerPC™ and Alpha™ Microprocessors
- High-Power 5V to 3.xV DC-DC Regulators
- Low-Voltage Distributed Power Supplies
