en5365 Enpirion, en5365 Datasheet - Page 4

• Manufacturer Part Number: en5365
• Description: 6a Voltage Mode Synchronous Buck Pwm Dc-dc Converter With Integrated Inductor 3-pin Vid Output Voltage Select
• Manufacturer: Enpirion

September 2007
Block Diagram
Figure 3. System block diagram.
©Enpirion 2007 all rights reserved, E&OE
56-58
PIN
53
54
55
NAME
ENABLE
PWM
M/S
NC
NC
ROCP
SS
Soft Start
PWM input/output. Used for optional master/slave configuration. When M/S pin is
asserted “low”, PWM will output the gate-drive PWM waveform. When the M/S pin is
asserted “high”, the PWM pin is configured as an input for PWM signal from the
“master” device. PWM pin can drive up to 3 slave devices.
NOTE: Leave this pin open when not using parallel mode.
NO CONNECT: These pins should not be electrically connected to each other or to
any external signal, voltage, or ground. One or more of these pins may be connected
internally.
Optional Master/Slave select pin. Asserting pin “low” places device in Master Mode
for current sharing. PWM pin (53) will output PWM drive signal. Asserting pin “high”
will place the device in Slave Mode. PWM pin (53) will be configured to input (receive)
PWM drive signal from “Master” device.
NOTE: Leave this pin open when not using parallel mode.
NO CONNECT: These pins should not be electrically connected to each other or to
any external signal, voltage, or ground. One or more of these pins may be connected
internally.
Thermal Limit
Over Voltage
UVLO
Current Limit
Generator
Sawtooth
(+)
(-)
Comp
PWM
EAOUT
Compensation
Reference
Reference
Bandgap
selector
Voltage
Error
Amp
4
(-)
(+)
FUNCTION
Power
Good
POK
Logic
P-Drive
N-Drive
EAIN
V
OUT
COMP
Selector
Voltage
AVIN
PVIN
AGND
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VSENSE
VS0
VS1
VS2
V
PGND
OUT
EN5365QI