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參數(shù)資料
| 型號： | MAX1557 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | DC/DC變換器 |
| 英文描述： | 16レA IQ, 1.2A PWM Step-Down DC-DC Converters |
| 中文描述： | 16µA IQ、1.2A PWM降壓型DC-DC轉(zhuǎn)換器 |
| 文件頁數(shù)： | 5/12頁 |
| 文件大小： | 732K |
| 代理商： | MAX1557 |
M
16μA I
Q
, 1.2A PWM DC-DC
Step-Down Converters
_______________________________________________________________________________________
5
LIGHT-LOAD SWITCHING WAVEFORMS
MAX1556/7 toc10
20mV/div
AC-COUPLED
V
LX
V
OUT
I
LX
2V/div
0
4
μ
s/div
0
200mA/div
SOFT-START/SHUTDOWN WAVEFORMS
MAX1556/7 toc11
5V/div
0
I
LX
V
SHDN
V
OUT
I
IN
500mA/div
0
0
100
μ
s/div
1V/div
0
500mA/div
C
SS
= 470pF
R
LOAD
= 4
SOFT-START RAMP TIME vs. C
SS
M
C
SS
(pF)
S
500
1000
1500
2000
1
10
0.1
0
2500
LOAD TRANSIENT
MAX1556/7 toc13
50mV/div
AC-COUPLED
500mA/div
V
OUT
I
OUT
20
μ
s/div
0
I
OUTMIN
= 20mA
LOAD TRANSIENT
MAX1556/7 toc14
50mV/div
AC-COUPLED
500mA/div
0
V
OUT
I
OUT
20
μ
s/div
I
OUTMIN
= 180mA
LINE TRANSIENT
MAX1556/7 toc15
10mV/div
AC-COUPLED
V
IN
V
OUT
I
LX
3.5V
4V
40
μ
s/div
0
200mA/div
BODE PLOT
MAX1556/7 toc16
FREQUENCY (kHz)
G
P
100
10
1
-50
-40
-30
-20
-10
0
10
20
30
40
-60
-30
0
30
60
90
120
150
180
210
240
-60
0.1
1000
0dB
PHASE MARGIN = 53
°
C
OUT
= 22
μ
F, R
LOAD
= 4
Typical Operating Characteristics (continued)
(V
IN
= V
INP
= 3.6V, D1 = D2 =
SHDN
= IN, Circuits of Figures 2 and 3, T
A
= +25°C, unless otherwise noted.)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1557ETB | 制造商:Maxim Integrated Products 功能描述:16MICROAMP QUIESCENT CURRENT 1.2A - Rail/Tube |
| MAX1557ETB+ | 制造商:Maxim Integrated Products 功能描述:CONV DC-DC SGL-OUT STEP DOWN 10TDFN EP - Rail/Tube |
| MAX1557ETB+T | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 16uA IQ 1.2A PWM Step-Down RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| MAX1557ETB-T | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 16uA IQ 1.2A PWM Step-Down RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| MAX15588GTL+ | 制造商:Maxim Integrated Products 功能描述:2-/1-PHASE+1 PHASE QUICKTUNE-PWM CONTROLLER WITH I2C INTERFA - Rail/Tube 制造商:Maxim Integrated Products 功能描述:IC PWM CTLR I2C INTERFACE QFN |
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