參數(shù)資料
型號(hào)： MAX1742EEE
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： Replaced by TMS320C6410 :
中文描述： 4.7 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO16
封裝： QSOP-16
文件頁數(shù)： 7/16頁
文件大小： 597K
代理商： MAX1742EEE
M
1A/2.7A, 1MHz, Step-Down Regulators with
Synchronous Rectification and Internal Switches
_______________________________________________________________________________________
7
Typical Operating Characteristics (continued)
(Circuit of Figure 1, T
A
= +25
°
C, unless otherwise noted.)
0.001
0.01
0.1
1
10
MAX1842
EFFICIENCY vs. OUTPUT CURRENT
(V
IN
= 5.0V, L = 2.5
μ
H)
M
OUTPUT CURRENT (A)
V
OUT
= 1.5V, R
TOFF
= 1OOk
,
f
PWM
= 770kHz
V
OUT
= 1.8V, R
TOFF
= 75k
,
f
PWM
= 910kHz
V
OUT
= 2.5V, R
TOFF
= 47k
,
f
PWM
= 1070kHz
100
95
90
85
80
70
65
60
55
50
75
E
0.001
0.01
0.1
1
10
MAX1842
EFFICIENCY vs. OUTPUT CURRENT
(V
IN
= 3.3V, L = 1.5
μ
H)
M
OUTPUT CURRENT (A)
MAX1842
NORMALIZED OUTPUT ERROR
vs. OUTPUT CURRENT
V
OUT
= 2.5V, R
TOFF
= 56k
,
f
PWM
= 1000kHz
V
OUT
= 2.5V, R
TOFF
= 39k
,
f
PWM
= 610kHz
V
OUT
= 1.8V, R
TOFF
= 43k
,
f
PWM
= 1050kHz
100
95
90
85
80
70
65
60
55
50
75
E
0.001
0.01
0.1
1
10
MAX1842
EFFICIENCY vs. OUTPUT CURRENT
(f
PWM
= 270kHz)
M
I
OUT
(A)
V
= 3.3V, V
OUT
= 1.8V,
L = 4.7
μ
H, R
TOFF
= 160k
100
95
90
85
80
70
65
60
55
50
75
E
V
IN
= 5V, V
OUT
= 1.8V, L = 5.6
μ
H,
R
TOFF
= 240k
M
0.001
0.01
0.1
1
10
OUTPUT CURRENT (A)
V
IN
= 3.3V, V
OUT
= 1.5V, L = 1.5
μ
H
V
IN
= 5V, V
OUT
= 1.5V, L = 2.5
μ
H
0.1
0
-0.1
-0.2
-0.3
-0.4
N
0
400
200
800
600
1000
1200
0
1.0
OUTPUT CURRENT (A)
1.5
0.5
2.0
2.5
3.0
MAX1842
SWITCHING FREQUENCY
vs. OUTPUT CURRENT
M
F
V
IN
= 5V, V
OUT
= 2.5V, L = 2.5
μ
H
V
IN
= 3.3V, V
OUT
= 1.5V, L = 1.5
μ
H
V
IN
= 5V, V
OUT
= 1.5V, L = 2.5
μ
H
0
0
0
0
MAX1842
STARTUP AND SHUTDOWN
V
2V/div
MAX1842 toc16
V
SHDN
5V/div
R
OUT
= 0.5
, R
TOFF
= 56k
V
IN
= 3.3V, V
OUT
= 1.5V
I
INPUT
1A/div
V
OUTPUT
1V/div
1ms/div
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1742EEE+ 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1A/2.7A 1MHz Step Down Regulator RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
MAX1742EEE+T 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1A/2.7A 1MHz Step Down Regulator RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
MAX1742EEE-T 功能描述:直流/直流開關(guān)調(diào)節(jié)器 RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
MAX1742EVKIT 功能描述:直流/直流開關(guān)調(diào)節(jié)器 Evaluation Kit for the MAX1742 MAX1842 RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
MAX17434GTL+ 制造商:Maxim from Components Direct 功能描述:THE MAXIM MAX17434GTL+ IS A PWM REGULATOR. - Rail/Tube 制造商:Maxim 功能描述:The Maxim MAX17434GTL+ is a PWM Regulator.
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