RP-HL4.DEC–Harris
Switching regulator power ICs break 1-MHz barrier
Devices can switch up to 10 A at 60 Vdc in less than 3 ns
The HIP5060/62/63 switching regulator power ICs are offered as the first
such devices to break the 1-MHz barrier. At 1 MHz, the three chips can
switch up to 10 A at 60-Vdc in less than 3 ns with ultra-low switching
losses (6 W) in power supply applications up to 100 W. According to the
company, the highest performance previously available from a one-chip
power supply with MOS outputs was 500 kHz, with a capability of switching
10 A in 50 ns with 18 W of power dissipation. The new devices let
designers employ current-mode controlled PWM (pulse-width modulation)
fixed-frequency switching techniques–instead of resonant-mode
techniques–to produce miniaturized power supplies exceeding 1 MHz. The
HIP5060 and HIP5063 each incorporate a 60-V 10-A lateral DMOS transistor,
and operate from 27 to 45 V and 10 to 45 V, respectively. The HIP5062
provides 26 to 42-V operation and includes two 60-V 5-A DMOS transistors.
The HIP5060/62 also include on-chip over-temperature and overvoltage
protection capability. All the devices are available in die form. (The
HIP5060/62/63 are $6.18, $7.33, and $4.33 ea/1,000, respectively–stock.)
Harris Semiconductor Corp. Melbourne, FL Information 800-4-HARRIS, ext.
7048
CAPTION:
The HIP5060/62/63 power control ICs allow designers to use PWM
fixed-frequency switching techniques to produce miniaturized power
supplies exceeding 1 MHz.
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