EN5312QI 查看數據表（PDF） - Enpirion, Inc.
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EN5312QI Datasheet PDF : 16 Pages
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March 2007
Typical Performance Characteristics
EN5312QI
Efficiency vs Output Current
100
90
80
70
60
50
40
30
20
10
0
50
VIN = 5.0V
VOUT = 3.3V
150 250 350 450 550 650 750 850 950
Load Current (mA)
Efficiency vs Output Current
100
95
90
85
80
75
70
65
60
55
50
50
VIN = 2.5V
VIN = 5.0V
VIN = 3.6V
VIN = 3.3V
VOUT = 1.8V
150 250 350 450 550 650 750 850 950
Load Current (mA)
Transient Response
Vout
50mV/Div
Efficiency vs Output Current
100
95
90
85
80
75
70
65
60
55
50
50
VIN = 3.3V
VIN = 5.0V
VIN = 3.6V
150 250 350 450 550
VOUT = 2.5V
650 750 850 950
Load Current (mA)
Start up Waveform
Vout
1V/Div
Enable
1V/Div
VIN = 5.0V
VOUT = 3.3V
400µs/Div
Transient Response
Vout
50mV/Div
ILoad
500mA/Div
VIN = 5.0V
20µs/Div
VOUT = 3 .3V
Iload = 100mA to 800mA
Output Ripple
Vout
10mV/Div
ILoad
500mA/Div
VIN = 3.3V
20µs/Div
VOUT = 1 .8V
Iload = 100mA to 800mA
Output Ripple
Vout
10mV/Div
VIN = 5.0V
200ns/Div
VOUT = 3.3V
Output Cap = 10 µF 0805
VIN = 5.0V
200ns/Div
VOUT = 3.3V
Output Cap = 2 x 10 µF 0805
©Enpirion 2007 all rights reserved, E&OE
6
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