HIP6004E Datasheet, PDF (1/13 Pages) Intersil Corporation – Buck and Synchronous-Rectifier (PWM) Controller and Output Voltage Monitor

®
Data Sheet
July 2004
HIP6004E
FN4997.2
Buck and Synchronous-Rectifier (PWM)
Controller and Output Voltage Monitor
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
r_DS(ON) of the upper MOSFET which eliminates the need for
a current sensing resistor.
Pinout
HIP6004E
TOP VIEW
VSEN 1
OCSET 2
SS 3
VID25mV 4
VID0 5
VID1 6
VID2 7
VID3 8
COMP 9
FB 10
20 RT
19 OVP
18 VCC
17 LGATE
16 PGND
15 BOOT
14 UGATE
13 PHASE
12 PGOOD
11 GND
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 r_DS(ON)
• Small Converter Size
- Constant Frequency Operation
- 200kHz Free-Running Oscillator Programmable from
50kHz to over 1MHz
• Pb-free available
Applications
• VRM8.5 modules for Pentium III and Other
Microprocessors
• _{High-Power DC-DC Regulators}
• _{Low-Voltage Distributed Power Supplies}
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
Ordering Information
TEMP.
PART NUMBER RANGE (^oC)
PACKAGE
HIP6004ECB
0 to 70 20 Ld SOIC
HIP6004ECBZ
(See Note)
0 to 70
20 Ld SOIC
(Pb-free)
HIP6004ECV
0 to 70 20 Ld TSSOP
HIP6004ECVZ
(See Note)
0 to 70
20 Ld TSSOP
(Pb-free)
*Add “-T” suffix to part number for tape and reel packaging.
PKG.
DWG. #
M20.3
M20.3
M20.173
M20.173
NOTE: Intersil Pb-free products employ special Pb-free material sets; molding
compounds/die attach materials and 100% matte tin plate termination finish, which
is compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free
products are MSL classified at Pb-free peak reflow temperatures that meet or
exceed the Pb-free requirements of IPC/JEDEC J Std-020B.
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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