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EP53A7LQ Datasheet(PDF) 3 Page - Enpirion, Inc.

Part No. EP53A7LQ
Description  1000mA Synchronous Buck Regulator with Integrated Inductor
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Maker  ENPIRION [Enpirion, Inc.]
Homepage  http://www.enpirion.com
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EP53A7LQ Datasheet(HTML) 3 Page - Enpirion, Inc.

 
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01543
11/11/2009
Rev:B
EP53A7LQI/EP53A7HQI
©Enpirion 2009 all rights reserved, E&OE
3
www.enpirion.com
PIN
NAME
FUNCTION
9, 10,
11
VS2, VS1,
VS0
Output voltage select. VS2 = pin 9, VS1 = pin 10, VS0 = pin 11.
EP53A7LQI: Selects one of seven preset output voltages or an external resistor divider.
EP53A7HQI: Selects one of eight preset output voltages.
(Refer to section on output voltage select for more details.)
12
ENABLE
Output Enable. Enable = logic high; Disable = logic low
13
AVIN
Input power supply for the controller circuitry. Connect to PVIN through a 100 Ohm resistor.
14
PVIN
Input Voltage for the MOSFET switches.
Absolute Maximum Ratings
CAUTION: Absolute Maximum ratings are stress ratings only. Functional operation beyond the
recommended operating conditions is not implied. Stress beyond the absolute maximum ratings may
cause permanent damage to the device.
Exposure to absolute maximum rated conditions for
extended periods may affect device reliability.
PARAMETER
SYMBOL
MIN
MAX
UNITS
Input Supply Voltage
VIN
-0.3
6.0
V
Voltages on: ENABLE, VSENSE, VSO – VS2
-0.3
VIN+ 0.3
V
Voltages on: VFB (EP53A7LQI)
-0.3
2.7
V
Maximum Operating Junction Temperature
TJ-ABS
150
°C
Storage Temperature Range
TSTG
-65
150
°C
Reflow Temp, 10 Sec, MSL3 JEDEC J-STD-020C
260
°C
ESD Rating (based on Human Body Mode)
2000
V
Recommended Operating Conditions
PARAMETER
SYMBOL
MIN
MAX
UNITS
Input Voltage Range
VIN
2.4
5.5
V
Operating Ambient Temperature
TA
- 40
+85
°C
Operating Junction Temperature
TJ
- 40
+125
°C
Thermal Characteristics
PARAMETER
SYMBOL
TYP
UNITS
Thermal Resistance: Junction to Ambient –0 LFM (Note 1)
θJA
85
°C/W
Thermal Overload Trip Point
TJ-TP
+155
°C
Thermal Overload Trip Point Hysteresis
25
°C
Note 1
: Based on a four layer copper board and proper thermal design per JEDEC EIJ/JESD51 standards


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