en5311qi-e Enpirion, en5311qi-e Datasheet - Page 3

• Manufacturer Part Number: en5311qi-e
• Description: 1a Synchronous Buck Regulator With Integrated Inductor
• Manufacturer: Enpirion

Functional Block Diagram
Figure 3. Functional block diagram.
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03799
ENABLE
Thermal Limit
Current Limit
Soft Start
UVLO
(+)
(-)
Generator
Sawtooth
Comp
PWM
Logic
VREF
Compensation
Network
11/24/2009
3
Error
Amp
(-)
(+)
N-Drive
P-Drive
DAC
VS0 VS1 VS2
Voltage
Switch
Select
V
IN
Package Boundry
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EN5311QI
V
GND
V
V
OUT
SENSE
FB
Rev:B