FAN5235QSC Fairchild Semiconductor, FAN5235QSC Datasheet - Page 3

• 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

Pin Description
Absolute Maximum Ratings
Note:
1. Stresses beyond "Absolute Maximum Ratings" may cause permanent device damage. Continuous exposure to absolute
Recommended Operating Conditions
Thermal Information
REV. 1.3.3 1/3/02
Pin Name
ISEN5
SW5
HSD5
CPUMP5
V
SW, ISEN Pins,SDWN Pin
CPUMP, HSD Pins
SDN, VFB, V_always pins
CPUMP to SW pins, and all other pins
The sum of the load currents on pins 2 and 6 must not exceed 60mA total
Input Voltage, V
Ambient Temperature, T
Thermal Resistance,
Thermal Resistance,
Maximum Junction Temperature
Storage Temperature Range
Maximum Lead Temperature, Soldering 10 Sec
IN
maximum rating conditions may affect device reliability. Functional operation of the device at these or any other conditions
beyond those indicated in the operational sections of the specification is not implied.
Parameter
IN
Pin Number Pin Function Description
21
22
23
24
(Continued)
JA
JC
A
Current Sense for 5V. This pin should be connected to the drain of the bottom
Mosfet using appropriate resistor and RC filter. See Application Section.
High Side Driver Source and Low Side Driver Drain Switching Node.
Switching node for 5V.
High side FET driver for 5V. Connect this pin directly to the gate of an N-channel
MOSFET. The trace from this pin to the MOSFET gate should be < 1".
Charge Pump 5V. High side Gate drive voltage for 5V. High side Gate drive
voltage for 5V. This pin is to be connected to SW5 through a 100nF cap. and to
5V-ALWAYS through a diode.
QSOP
TSSOP
1
Conditions
-65°C to 150°C
-20°C to 85°C
+5.4V to 24V
28.5°C/W
88°C/W
16°C/W
150°C
300°C
Min.
-0.3
-0.3
-0.3
-0.3
-0.3
Typ.
Max.
6.5
6.5
27
27
33
Units
FAN5235
V
V
V
V
V
3