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| EP53A7LQ Datasheet, PDF (10/17 Pages) Enpirion, Inc. – 1000mA Synchronous Buck Regulator with Integrated Inductor | |||
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Functional Block Diagram
EP53A7LQI/EP53A7HQI
LLM
PVIN
ENABLE
UVLO
Thermal Limit
Current Limit
Soft Start
(-)
PWM
Comp
(+)
Sawtooth
Generator
Mode Logic
Logic
P-Drive
N-Drive
Compensation
Network
NC(SW)
VOUT
PGND
VSENSE
(-)
Switch
Error
VFB
Amp
(+)
VREF
DAC
Voltage
Select
AVIN AGND
Package Boundry
VS0 VS1 VS2
Figure 5: Functional Block Diagram
©Enpirion 2009 all rights reserved, E&OE
01543
10
11/11/2009
www.enpirion.com
Rev:B
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