PE99155 Datasheet, PDF (4/15 Pages) Peregrine Semiconductor – Radiation Hardened UltraCMOS Monolithic Point-of-Load Synchronous Buck Regulator with Integrated Switches

PE99155
Product Specification
Figure 3. Pin Layout (Top View)
Table 4. Operating Ranges
Symbol
Parameter/Conditions
Min Max Units
V_IN
Power supply voltage
4.6 6.0
V
T_c
Operating temperature range
(case)
-55 125
o_C
Note: Operation should be restricted to the limits in the Operating Ranges table
Package Mechanical Details
500 mil x 500 mil CQFP hermetic with gullwing leads
32 pins, 50 mil lead pitch
Alumina body, Kovar lid
Table 3. Pin Descriptions
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12, 15, 16,
17, 18, 24,
25, 29
13, 14, 26,
27, 28
19, 20, 21,
22, 23
30
31
32
Paddle
Pin Name
AGND
VREF
EAINP
EAINM
EAOUT
ISET
ICOMP
RSET
SYNCOb
PGOOD
RSEL
Description
Analog ground
1.000V reference output, loop to EAINP
Additional low pass filtering may be
necessary
Error Amplifier (+) input, loop to VREF
Error Amplifier (-) input, load feedback
Error Amplifier output/loop to ISET
Current Set-point input/loop to EAOUT
Variable current compensation/resistor
to VOUT
Resistor to set reference current
Loop-through complement output
Power Good flag output
Reference resistor selection
GND
Input power/signal ground
VIN
OUT
SDb
SYNC
SScap
GND
Input power supply
Switch power output
Shutdown (L)/enable input
Oscillator sync input or int. osc freq
select
Soft Start timing cap input
Ground for proper operation
©2011-2012 Peregrine Semiconductor Corp. All rights reserved.
Page 4 of 15
Table 5. Absolute Maximum Ratings
Symbol
Parameter/Conditions
Min Max Units
V_IN Power supply voltage
-0.5 6.5
V
T_J
Operating temperature range
(junction)
-55 145 ^oC
T_ST
Storage temperature range
(case)
-65 150 ^oC
I_I
DC into any signal input
-10 10 mA
I_O
DC into any signal output
-50 50 mA
I_P
DC into any single power pin
-2
2
A
Exceeding absolute maximum ratings may cause
permanent damage. Operation between maximum
operating ranges and absolute maximum
operating ranges for extended periods may
reduce reliability.
Table 6. Electrostatic Discharge (ESD) Ratings
Model
Parameter/Conditions
Min Max Units
HBM V_ESD All pins
1000
V
Note: Human Body Model ESD Voltage (HBM, MIL_STD 883 Method 3015.7)
Electrostatic Discharge (ESD) Precautions
When handling this UltraCMOS^® device, observe
the same precautions that you would use with other
ESD-sensitive devices. Although this device
contains circuitry to protect it from damage due to
ESD, precautions should be taken to avoid
exceeding the specified rating.
Latch-Up Avoidance
Unlike conventional CMOS devices, UltraCMOS^®
devices are immune to latch-up.
ELDRS
The UltraCMOS^® process does not exhibit
enhanced low-dose-rate sensitivity since bipolar
minority carrier elements are not used.
Document No. 70-0307-07 │ UltraCMOS^® Power Management Solutions