FAN5235QSC Fairchild Semiconductor, FAN5235QSC Datasheet - Page 4

• Manufacturer Part Number: FAN5235QSC
• Description: IC CTRLR DC/DC MOBILE PC 24QSOP
• Manufacturer: Fairchild Semiconductor

Specifications of FAN5235QSC

• Applications: Converter, Mobile PCs
• Voltage - Input: 5.4 ~ 24 V
• Number Of Outputs: 5
• Voltage - Output: 3.3V, 5V, 12V
• Operating Temperature: -20°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-QSOP
• Output Voltage: 3.3 V, 5 V
• Output Current: 50 mA
• Input Voltage: 5.4 V to 24 V
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 20 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: FAN5235QSC_NL; FAN5235QSC_NL

FAN5235
ELECTRICAL SPECIFICATIONS
Operating Conditions
Recommended Operating Conditions Unless Noted Refers to Block Diagrams
4
Parameter
Supply
V
Input Quiescent Current
Input UVLO Threshold
5V and 3.3V Main Regulators
Output Voltage Precision
Oscillator Frequency, f
HSD On-Resistance, pull up
HSD On Resistance pull down
LSD On-Resistance, pull up
LSD On Resistance pull down
HSD On Output, V
HSD Off Output, V
LSD On Output, V
LSD Off Output, V
Ramp Amplitude, pk-pk
Ramp Offset
Ramp Gain from V
Error Amplifier GBW
Current Limit Threshold
Over Voltage Threshold
Under Voltage Threshold
SDN/SS Full On Voltage Min.
SDN/SS Full Off Voltage Max.
Max Duty Cycle
Min PWM Time
VFB3.3 Input Leakage Current
12V Regulator
Output Voltage Precision
V
V
Oscillator Frequency (f
Gate Drive On-Resistance
IN
FB12
FB12
Input Supply Voltage
Input Current
5V-Always
GS
CPUMP
GS
IN
osc
osc
-V
/3)
-V
GS
GS
(DC loading only) Note 1
0.1 to 5.5A, 5.4 to 24V
and Io=0 to 150mA
(End of Soft Start)
V_5 =4.9 to 5.1V
R2, R8 = 1K
H/LSD Open
High or Low
Conditions
Rising Vbat
Shut-down
VIN = 16V
hysteresis
2µs delay
2µs delay
Stand-by
I = 10µA
I = 10µA
I = 10µA
I = 10µA
Note 2
Min.
255
110
5.4
4.3
4.2
90
70
40
85
-2
-2
2.472
Typ.
300
500
300
125
135
115
200
100
100
1.4
4.7
0.5
<1
75
94
55
7
4
6
5
2
3
6
Max.
400
345
100
100
100
100
180
120
800
200
115
5.1
REV. 1.3.3 1/3/02
24
+2
12
10
80
70
+2
12
3
5
9
8
Units
mV/V
%VO
%VO
MHz
nsec
kHz
kHz
mA
mV
mV
mV
mV
mV
mV
µA
µA
µA
µA
nA
%
%
%
V
V
V
V
V
V