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EP5357LUI Datasheet(PDF) 5 Page - Enpirion, Inc.

Part # EP5357LUI
Description  600mA Synchronous Buck Regulator with Integrated Inductor
PDF  17 Pages
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Manufacturer  ENPIRION [Enpirion, Inc.]
Direct Link  http://www.enpirion.com
Logo ENPIRION - Enpirion, Inc.

EP5357LUI Datasheet(HTML) 5 Page - Enpirion, Inc.

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03409
September 12, 2012
Rev: D
EP5357LUI/EP5357HUI
©Enpirion 2012 all rights reserved, E&OE
5
www.enpirion.com
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
LLM Engage Headroom
Minimum VIN-VOUT to ensure
proper LLM operation
600
mV
LLM Pin Logic Low
VLLMLO
0.3
V
LLM Pin Logic High
VLLMHI
1.4
V
LLM Pin Current
ILLM
<100
nA
Operating Frequency
FOSC
5
MHz
Soft Start Operation
Soft Start Slew Rate
ΔVSS
EP5357HUI (VID MODE)
EP5357LUI (VID MODE)
8
4
V/mS
VOUT Rise Time
TRISE
Time to 90% VOUT (VFB MODE)
180
250
uSec
Note 1
: Parameter guaranteed by design
Typical Performance Characteristics
45
50
55
60
65
70
75
80
85
90
95
10
100
1000
Load Current (mA)
Efficiency vs. Load Current: VIN = 5.0V, VOUT (from
top to bottom) = 3.3, 2.5, 1.8, 1.2V
45
50
55
60
65
70
75
80
85
90
95
10
100
1000
Load Current (mA)
Efficiency vs. Load Current: VIN = 3.7V, VOUT (from
top to bottom) = 2.5, 1.8, 1.2V
45
50
55
60
65
70
75
80
85
90
95
10
100
1000
Load Current (mA)
Efficiency vs. Load Current: VIN = 3.3V, VOUT (from
top to bottom) = 2.5, 1.8, 1.2V
LLM
LLM
PWM
PWM
LLM
PWM



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