HIP6012

Buck and Synchronous-Rectifier Pulse-Width Modulator (PWM) Controller

Device is no longer available or supported, and production has been discontinued.

Product Status: EOL

OVERVIEW

The HIP6012 provides complete control and protection for a DC-DC converter optimized for high-performance microprocessor applications. It is designed to drive two N-Channel MOSFETs in a synchronous-rectified buck topology. The HIP6012 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 HIP6012 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 HIP6012 protects against overcurrent conditions by inhibiting PWM operation. The HIP6012 monitors the current by using the rDS(ON) of the upper MOSFET which eliminates the need for a current sensing resistor.

KEY FEATURES

  • Drives Two N-Channel MOSFETs
  • 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
  • Overcurrent Fault Monitor
  • Does Not Require Extra Current Sensing Element
  • Uses MOSFETs rDS(ON)
  • Small Converter Size
  • Constant Frequency Operation
  • 200kHz Free-Running Oscillator Programmable from 50kHz to Over 1MHz
  • 14 Pin, SOIC and TSSOP Packages
  • Pb-Free Available (RoHS Compliant)

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
HIP6012
Basic Information
Production Status
EOL
Input Voltage Min (V)
2.5
Input Voltage Max (V)
12
Output Voltage Min (V)
1.3
Output Voltage Max (V)
12
Output Current Max (A)
25
VBIAS (min)
12 V
VBIAS (max) (V)
12
IS (typ)
5 mA
Qualification Level
Standard
Bias Voltage Range (V)
12
Temperature Range
0 to +70

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