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EP53A7LQ Datasheet(PDF) 5 Page - Enpirion, Inc.

Part No. EP53A7LQ
Description  1000mA Synchronous Buck Regulator with Integrated Inductor
Download  17 Pages
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Maker  ENPIRION [Enpirion, Inc.]
Homepage  http://www.enpirion.com
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EP53A7LQ Datasheet(HTML) 5 Page - Enpirion, Inc.

 
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01543
11/11/2009
Rev:B
EP53A7LQI/EP53A7HQI
©Enpirion 2009 all rights reserved, E&OE
5
www.enpirion.com
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
LLM Pin Current
ILLM
<100
nA
Operating Frequency
FOSC
5
MHz
Soft Start Operation
Soft Start Slew Rate
ΔVSS
EP53A7LQI (VID only)
EP53A7HQI (VID only)
4
8
V/mS
Soft Start Rise Time
ΔTSS
EP53A7LQI (VFB mode); Note 2
170
225
280
μS
Note 1
: Parameter guaranteed by design
Note 2:
Measured from when VIN ≥ VUVLO_R & ENABLE pin crosses its logic High threshold.
Typical Performance Characteristics
45
50
55
60
65
70
75
80
85
90
95
10
100
1000
Load Current (mA)
Efficiency vs. Load Current: VOUT = 1.2V, VIN (from
top to bottom) = 2.5, 3.3, 3.7, 4.3, 5.0V
45
50
55
60
65
70
75
80
85
90
95
10
100
1000
Load Current (mA)
Efficiency vs. Load Current: VOUT = 1.8V, VIN (from
top to bottom) = 2.5, 3.3, 3.7, 4.3, 5.0V
45
50
55
60
65
70
75
80
85
90
95
10
100
1000
Load Current (mA)
Efficiency vs. Load Current: VOUT = 2.5V, VIN (from
top to bottom) = 3.3, 3.7, 4.3, 5.0V
45
50
55
60
65
70
75
80
85
90
95
10
100
1000
Load Current (mA)
Efficiency vs. Load Current: VOUT = 3.3V, VIN (from
top to bottom) = 3.7, 4.3, 5.0V
LLM
LLM
PWM
PWM
LLM
PWM
VOUT=1.2V
VOUT=1.8V
VOUT=2.5V
LLM
PWM
VOUT=3.3V


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