EN5335QI
Block Diagram
POK
PVIN
power
Good
Logic
UVLO
Thermal Limit
Current Limit
ROCP
Over
Voltage
VOUT
Over Voltage
P-Drive
VOUT
(-)
N-Drive
PWM
Comp
PGND
(+)
Compensation
Network
Sawtooth
Generator
VSENSE
Voltage
Selector
(-)
Error
Amp
VS0
VS1
VS2
(+)
ENABLE
Reference
Voltage
SS
Soft Start
selector
Bandgap
Reference
COMP
EAIN
EAOUT
Figure 3. System block diagram.
Absolute Maximum Ratings
CAUTION: Absolute Maximum ratings are stress ratings only. Functional operation beyond
recommended operating conditions is not implied. Stress beyond Absolute maximum ratings may
cause permanent damage to the device. Exposure to absolute maximum rated conditions for
extended periods may affect device reliability.
Maximum Electrical Ratings
Min
Max
Voltages on: VIN, VOUT
-0.3V
-0.3V
-0.3V
-0.3V
7.0V
Voltages on: VSENSE
Voltages on: VS0-VS2 (Note 1)
Voltages on: ENABLE
VIN + 0.3V
VIN + 0.3V
VIN + 0.3V
Maximum Thermal Ratings
Ambient operating range
-40°C
-65°C
+85°C
+150°C
+260°C
Storage Temperature Range
Reflow Peak Body Temperature MSL3 (10 Sec)
Note 1: VS0-VS2 pins have an internal pull-up resistor, only ground potentials should be placed on them as required.
©Enpirion 2009 all rights reserved, E&OE
www.enpirion.com
4
00846
9/18/2009
Rev:C
ENPIRION [ ENPIRION, INC. ]
