EP5357LUI Datasheet, PDF (5/17 Pages) Enpirion, Inc. – 600mA Synchronous Buck Regulator with Integrated Inductor

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