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HIP6004ECBZ

Buck and Synchronous-Rectifier (PWM) Controller and Output Voltage Monitor

Manufacturer:

Intersil
Mfr.Part #:

HIP6004ECBZ
Datasheet:

HIP6004ECBZ Datasheet (PDF)
Applications:

Controller, Intel VRM8.5
Voltage - Input:

5V, 12V
Number of Outputs:

1
Voltage - Output:

1.05V ~ 1.825V
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HIP6004ECBZ General Description

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The HIP6004E 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 HIP6004E integrates all of the control, output adjustment, monitoring and protection functions into a single package. The output voltage of the converter is easily adjusted and precisely regulated. The HIP6004E includes a 5-input digital-to-analog converter (DAC) that adjusts the output voltage from 1. 05V_DC to 1. 825V_DC in 25mV increments steps. The precision reference and voltage-mode regulator hold the selected output voltage to within ±1% over temperature and line voltage variations. The HIP6004E provides simple, single feedback loop, voltage-mode 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 HIP6004E monitors the output voltage with a window comparator that tracks the DAC output and issues a Power Good signal when the output is within ±10%. The HIP6004E protects against over-current and overvoltage conditions by inhibiting PWM operation. Additional built-in overvoltage protection triggers an external SCR to crowbar the input supply. The HIP6004E 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% Over Line Voltage and Temperature
5-Bit digital-to-analog output Voltage Selection
25mV binary steps 1.05V_DC to 1.825V_DC
Power good output voltage monitor
Overvoltage and overcurrent fault monitors
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
Pb-free available

Specifications

Series	-	Applications	Controller, Intel VRM8.5
Voltage - Input	5V, 12V	Number of Outputs	1
Voltage - Output	1.05V ~ 1.825V	Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mount