FAN5231 Datasheet, PDF (3/17 Pages) Fairchild Semiconductor – Precision Dual PWM Controller And Linear Regulator for Notebook CPUs

Pinout
LG ATE2 1
PGND2 2
BOOT2 3
UGATE2 4
PHASE2 5
ISEN2 6
VI D4 7
VI D3 8
VI D2 9
VI D1 10
VI D0 11
VSEN2 12
V3I N 13
VOUT3 14
28 VCC
27 LGATE1
26 PGND1
25 BOOT1
24 UGATE1
23 PHASE1
22 ISEN1
21 PGOOD
20 EN
19 VI N
18 SOFT
17 VSEN1
16 VRET1
15 GND
FAN5231
Absolute Maximum Ratings
Parameter
Supply Voltage, V_CC
Input Voltage, Vin
V3in
PHASE1,2
BOOT1,2
BOOT1,2 with respect to PHASE1,2
PGOOD, RT/FAULT, and GATE Voltage
Core Output or I/O Voltage
ESD Classification
Min.
GND - 0.3
GND - 0.3
Max.
+ 6.5
+ 29.0
+ 6.5
+ 29.0
+ 29.0
+ 6.5
V_CC + 0.3
+ 6.5
Class 2
Units
V
V
V
V
V
V
V
V
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a
stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections
of this specification is not implied.
Recommended Operating Conditions
Parameter
Supply Voltage, V_CC
Input Voltage, Vin
V3in
Ambient Temperature Range
Junction Temperature Range
Min.
+7.5
-20
-20
Max.
+5.0 ±5%
22.0
+3.3 ±10%
85
125
Units
V
V
V
°C
°C
Thermal Information
Parameter
Thermal Resistance (Typical, Note 1)
QSOP Package
QSOP Package (with 3 in² of copper)
Maximum Junction Temperature (Plastic Package)
Maximum Storage Temperature Range
Maximum Lead Temperature (Soldering 10s)
(QSOP - Lead Tips Only)
Min.
-65
Note
1. θ_JA is measured with the component mounted on an evaluation PC board in free air.
Max.
θ _JA
55
TBD
150
150
300
Units
(°C/W)
°C
°C
°C
REV. 1.1.1 8/15/01
3