Product Description
The PE99153 is a radiation tolerant point-of-load buck regulator delivering high efficiency at VIN =...
Product Description
The PE99153 is a radiation tolerant point-of-load buck
regulator delivering high efficiency at VIN = 5V and output currents up to 6A continuous. This single-chip solution is perfect for Hi-Rel applications and delivers peak efficiency exceeding 93%. A minimal external component count and high switching frequency enables >10 W/in2 standard PCB designs while high efficiency minimizes thermal concerns. All power switching devices are integrated on-chip.
Fabricated in Peregrine’s patented UltraCMOS® technology, the PE99153 offers excellent power efficiency and intrinsic radiation tolerance.
Table 1. Radiation Performance
TID 100 kRad(Si)
SEL > 90 MeVcm2/mg
SEB
> 90 MeVcm2/mg
SET
> 90 MeVcm2/mg
SEFI
> 90 MeVcm2/mg
SEGR
> 90 MeVcm2/mg
SEL, SEB, SEGR, SEU, SEFI: None observed, Au/60 degrees SET: No events exceeding 30 mV transient observed @ Au, LET=90, 60 degrees and normal incidence
Figure 1. Typical Application Diagram
Product Specification PE99153
Hi-Rel 6A DC-DC Converter
Radiation Tolerant UltraCMOS® Monolithic Point-of-Load Synchronous Buck
Regulator with Integrated Switches
Features
Up to 6A continuous Output voltage range from 1.0–3.6V
by external select resistors
Input voltage range 4.6–6.0V Current mode control, pulse-by-pulse
current limit, current sharing enabled and (N+K) redundancy compatible shutdown mode
SYNC function, 100 kHz–5 MHz lock
range with selectable 500 kHz / 1 MHz free running frequency
Shutdown pin...