參數(shù)資料
型號(hào)： MAX1843
廠商： Maxim Integrated Products, Inc.
英文描述： 2.7A, 1MHz, Low-Voltage, Step-Down Regulator with Internal Synchronous Rectification in QFN Package
中文描述： 2.7A、1MHz、低電壓、降壓型穩(wěn)壓器，內(nèi)置同步整流，TQFN封裝
文件頁(yè)數(shù)： 5/13頁(yè)
文件大小： 366K
代理商： MAX1843
M
2.7A, 1MHz, Low-Voltage, Step-Down Regulator with
Internal Synchronous Rectification in QFN Package
_______________________________________________________________________________________
5
0
150
100
50
200
250
300
350
400
450
500
0
30
20
10
40
50
60
70
80
90
100
0
2
1
3
4
5
6
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX1843 toc01
V
IN
(V)
N
I
C
(
μ
A
S
I
C
(
NO LOAD
SHUTDOWN
Typical Operating Characteristics (continued)
(Circuit of Figure 1, T
A
= +25
°
C, unless otherwise noted.)
0
1.0
0.5
2.0
1.5
3.0
2.5
3.5
4.5
4.0
5.0
0
100 150 200
50
250 300 350
R
TOFF
(k
)
450
400
500
OFF-TIME vs. R
TOFF
M
t
O
μ
s
LOAD-TRANSIENT RESPONSE
V
50mV/div
I
2A/div
10
μ
s/div
0
LINE-TRANSIENT RESPONSE
V
2V/div
V
OUTPUT
20mV/div
AC-COUPLED
MAX1843 toc10
20
μ
s/div
I
OUT
= 2.5A, V
OUT
= +1.5V
R
TOFF
= 100k
μ
H
0
400
200
800
600
1000
1200
0
1.0
OUTPUT CURRENT (A)
1.5
0.5
2.0
2.5
3.0
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
STARTUP AND SHUTDOWN
V
SS
2V/div
MAX1843 toc08
V
5V/div
R
OUT
= 0.5
, R
TOFF
= 56k
V
IN
= +3.3V, V
OUT
= +1.5V
I
1A/div
V
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
MAX1843EGI 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
MAX1843EGI+ 制造商:Maxim Integrated Products 功能描述:2.7A, 1MHZ, INTERNAL SWITCH STEP DOWN REGULATOR - Rail/Tube
MAX1843EGI+T 制造商:Maxim Integrated Products 功能描述:CONV DC-DC SGL-OUT STEP DOWN 28QFN EP - Tape and Reel
MAX1843EGI-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
MAX1843ETI+ 功能描述:直流/直流開關(guān)調(diào)節(jié)器 2.7A 1MHz Step-Down 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
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