FAN2315MPX Datasheet, PDF (2/19 Pages) Fairchild Semiconductor – FAN2315 TinyBuck 15 A Integrated Synchronous Buck Regulator

Typical Application Diagram
Figure 1. Typical Application
Functional Block Diagram
VIN
BOOT PVIN
PVCC
VCC
EN
SS
FB
FREQ
PGOOD
PVCC
VCC
VCC UVLO
0.8V/
2.0V
ENABLE
VCC
10µA
Modulator
VREF
FB
Comparator
x1.2
2^nd Level Over
Voltage Comparator
x1.1
1^st Level Over
Voltage Comparator
x0.9
Under Voltage
Comparator
Thermal
Shutdown
PVCC
VCC
HS Gate
Driver
Control
Logic
PFM
Comparator
PVCC
LS Gate
Driver
VCC
10µA
Current Limit
Comparator
SW
AGND
ILIM
Figure 2. Block Diagram
PGND
© 2011 Fairchild Semiconductor Corporation
FAN2315 • Rev. 1.0.4
2
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