en5366 Enpirion, en5366 Datasheet - Page 4

• Manufacturer Part Number: en5366
• Description: 6a Voltage Mode Synchronous Buck Pwm Dc-dc Converter With Integrated Inductor External Output Voltage Programming
• 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
PWM
M/S
NC
NC
ENABLE
ROCP
XOV
SS
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.
Soft Start
Thermal Limit
Current Limit
UVLO
Over Voltage
Generator
Sawtooth
(+)
(-)
Comp
PWM
EAOUT
Compensation
Reference
Reference
Bandgap
Network
selector
Voltage
Error
Amp
4
Voltage
(-)
(+)
Over
N-Drive
P-Drive
power
Good
Logic
POK
FUNCTION
EAIN
V
OUT
Selector
Voltage
COMP
PVIN
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V
PGND
XFB
OUT
EN5366QI