PE99155 Datasheet PDF - Peregrine Semiconductor
| Part Number | PE99155 | |
| Description | Hi-Rel 10A DC-DC Converter | |
| Manufacturers | Peregrine Semiconductor | |
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Product Description
The PE99155 is a radiation tolerant point-of-load buck
regulator delivering high efficiency at VIN = 5V and output
currents up to 10A 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 PE99155 offers excellent power efficiency and intrinsic
radiation tolerance.
Table 1. Radiation Performance
TID 100 kRad(Si)
SEL > 90 MeV•cm2/mg
SEB
> 90 MeV•cm2/mg
SET
> 90 MeV•cm2/mg
SEFI
SEGR
> 90 MeV•cm2/mg
> 90 MeV•cm2/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
PE99155
Hi-Rel 10A DC-DC Converter
Radiation Tolerant UltraCMOS®
Monolithic Point-of-Load Synchronous
Buck Regulator with Integrated Switches
Features
Up to 10A continuous
Output voltage range from 1.0V to
3.6V by external select resistors
Input voltage range 4.6V–6.0V
Current mode control, pulse-by-pulse
current limit, current sharing enabled
and (N+K) redundancy compatible
shutdown mode
SYNC function, 100 kHz to 5 MHz lock
range with selectable 500 kHz / 1 MHz
free running frequency
Shutdown pin, power good output
pin for supply sequencing
Better than 1% typical initial accuracy
(+25 °C)
Control inputs compatible with TTL,
LVTTL, LVCMOS (2.5V and 3.3V)
and 5V CMOS
Available in ceramic hermetic
packaging and in die form
Figure 2. Package Type
32-lead CQFP
Document No. DOC-29514-6 │ www.e2v-us.com
©2011–2015 Peregrine Semiconductor Corp. All rights reserved.
Page 1 of 15
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PE99155
Product Specification
Typical Performance Characteristics
Figure 4. Efficiency Curves Over Output
Load Current and Temperature
100
95
90
85
80
75
70
65
60
55
50
0
PE99155 Efficiency versus Output Current
VIN=5V, VOUT=2.5V, Fsw=1MHz
Tc = ‐55°C
Tc = +25°C
Tc = +125°C
123456789
Output Current (A)
10
Figure 5. Efficiency Curves Over Typical
Output Voltages
100
95
90
85
80
75
70
65
60
55
50
0
PE99155 Efficiency versus Output Current
Vin=5V, Fsw=1MHz, T=+25°C
Vout=3.3V
Vout=2.5V
Vout=1.5V
Vout=1.0V
123456789
Output Current (A)
10
Thermal Derating Curve
The thermal derating curve plots the case temper-
ature against the maximum current allowed while
maintaining safe electrical operation below the
maximum junction temperature. Reliability guide-
lines require the continuous or average output
current to remain below 10A at +125 °C junction
temperature. At full load and +125 °C case tem-
perature, the die temperature will approach
+145 °C. The output current should be derated
starting at +105 °C case based on the specific
application’s worst-case time averaged current
analysis using Figure 6.
Figure 6. Thermal Derating Curve
ILOAD (max continuous / average) derating for Tcase
12
11
10
9
8
7
6
5
4
3
2
1
0
-50
-25
0 25 50 75
Case Temperature (oC)
100 125
The PE99155 meets the maximum allowable
requirement of MIL-PRF-38535 (<2 × 105 A / cm2)
by achieving a current density of <1.5 × 105 A / cm2.
Document No. DOC-29514-6 │ www.e2v-us.com
©2011–2015 Peregrine Semiconductor Corp. All rights reserved.
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for PE99155 electronic component. |
| Information | Total 15 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ PE99155.PDF Datasheet ] | |
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