參數(shù)資料
型號: EN5311QI
廠商: ENPIRION INC
元件分類: 穩(wěn)壓器
中文描述: 1 A SWITCHING REGULATOR, 4000 kHz SWITCHING FREQ-MAX, QCC20
封裝: 5 X 5 MM, 1.10 MM HEIGHT, HAOLGEN FREE AND ROHS COMPLIANT, QFN-20
文件頁數(shù): 13/16頁
文件大小: 290K
代理商: EN5311QI
03799
11/24/2009
Rev:B
EN5311QI
Enpirion 2009 all rights reserved, E&OE
6
www.enpirion.com
Typical Performance Characteristics
Efficiency Vs. Load Current (Vin = 5.0V)
50
55
60
65
70
75
80
85
90
95
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Load Current (A)
E
ff
icen
cy
(
%
)
Efficiency Vs. Load Current (Vin = 3.3V)
50
55
60
65
70
75
80
85
90
95
100
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Load Current (A)
Ef
fi
c
ency
(
%
)
Top to Bottom: VOUT = 3.3 V, 2.5 V, 1.8 V, 1.5 V, 1.2 V, 0.8 V
Top to Bottom: VOUT = 2.5 V, 1.8 V, 1.5 V, 1.2 V, 0.8 V
Transient Response
Vout
50mV/Div
ILoad
500mA/Div
VIN = 5.0V
VOUT = 3.3V
Iload = 100mA to 800mA
20
μs/Div
Transient Response
Vout
50mV/Div
ILoad
500mA/Div
VIN = 5.0V
VOUT = 3.3V
Iload = 100mA to 800mA
20
μs/Div
Output Ripple: VIN = 5.0 V
Output Ripple: VIN = 3.3 V
VOUT = 1.2V, ILOAD = 1A, COUT = 1 x 10F 0805
Start up Waveform
Vout
1V/Div
Enable
1V/Div
VIN = 5.0V
VOUT = 3.3V
400
μs/Div
Start up Waveform
Vout
1V/Div
Enable
1V/Div
VIN = 5.0V
VOUT = 3.3V
400
μs/Div
Transient Response
Vout
50mV/Div
ILoad
500mA/Div
VIN = 3.3V
VOUT = 1.8V
Iload = 100mA to 800mA
20
μs/Div
Transient Response
Vout
50mV/Div
ILoad
500mA/Div
VIN = 3.3V
VOUT = 1.8V
Iload = 100mA to 800mA
20
μs/Div
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