FAN5094MTC Fairchild Semiconductor, FAN5094MTC Datasheet - Page 3

• Manufacturer Part Number: FAN5094MTC
• Description: IC CTRLR DC/DC SYNC BUCK 28TSSOP
• Manufacturer: Fairchild Semiconductor

Specifications of FAN5094MTC

• Applications: Controller, Intel Pentium® IV
• Voltage - Input: 12V
• Number Of Outputs: 1
• Voltage - Output: 1.1 ~ 1.85 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP
• Output Voltage: 1.850 V
• Mounting Style: SMD/SMT
• Operating Temperature Range: 0 C to + 70 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: FAN5094MTC_NL; FAN5094MTC_NL

PRODUCT SPECIFICATION
Pin Definitions
Absolute Maximum Ratings
REV. 1.0.2 5/13/02
Pin Number
Parameter
Supply Voltage VCC
Supply Voltages BOOTA, BOOTB
Voltage Identification Code Inputs, VID0-VID4
VFB, ENABLE/SS, PWRGD, PHASE, CLK
SW, ISNS
PGNDA, PGNDB to AGND
Gate Drive Current, peak pulse
Junction Temperature, T
Storage Temperature
Lead Soldering Temperature, 10 seconds
Thermal Resistance Junction-to-case,
19
20
21
22
23
24
25
26
27
28
GNDA
LDRVA
VCC
PWRGD
PHASE
ISHR
DROOP/E*
ENABLE/SS
RT
VFB
Pin Name
(continued)
J
Ground A. Ground-side current sense pin. Connect directly to low-side
MOSFET source, or to sense resistor ground.
Low Side FET Driver for A. Connect this pin to the gate of an N-channel
MOSFET for synchronous operation. The trace from this pin to the MOSFET
gate should be <0.5”.
VCC. Internal IC supply. Connect to system 12V supply, and decouple with a
0.1 F ceramic capacitor.
Power Good Flag. An open collector output that will be logic LOW if the
output voltage is not within +/-5% of the nominal output voltage setpoint.
Phase Control. Connecting this pin to bypass causes a synchronized clock
signal to appear on CLK. Connecting this pin to ground allows the CLK pin to
accept a clock signal for synchronization.
Current Share. Connecting this pin to the ISHR pin of another FAN5094
enables current sharing.
Droop Control/E*-mode Control. A resistor from this pin to ground sets the
amount of droop by controlling the gain of the current sense amplifier.
Connecting this pin to bypass turns off Phase A.
Output Enable. A logic LOW on this pin will disable the output. An internal
current source allows for open collector control. This pin also doubles as soft
start.
Frequency Set. A resistor from this pin to ground sets the switching
frequency. See Apps section.
Voltage Feedback. Connect to the desired regulation point at the output of
the converter.
JA
Pin Function Description
Min.
-0.5
-55
-65
-3
Typ.
300
16
3
Max.
150
150
0.5
15
22
15
6
6
Units
C/W
FAN5094
V
V
V
V
V
V
A
C
C
C
3