參數(shù)資料
型號: MAX1540AETJ
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 穩(wěn)壓器
英文描述: Dual Step-Down Controllers with Saturation Protection, Dynamic Output, and Linear Regulator
中文描述: DUAL SWITCHING CONTROLLER, 620 kHz SWITCHING FREQ-MAX, QCC32
封裝: 5 X 5 MM, 0.80 MM HEIGHT, MO-220-WHHD-2, TQFN-32
文件頁數(shù): 12/49頁
文件大?。?/td> 794K
代理商: MAX1540AETJ
M
Dual Step-Down Controllers with Saturation
Protection, Dynamic Output, and Linear Regulator
12
______________________________________________________________________________________
Typical Operating Characteristics (continued)
(MAX1541 circuit of Figure 12, V
IN
= 12V, V
DD
= V
CC
= 5V,
SKIP
= GND, TON = REF, T
A
= +25°C, unless otherwise noted.)
LINEAR-REGULATOR OUTPUT (LDOOUT)
vs. LOAD CURRENT
M
LDO LOAD CURRENT (mA)
L
80
60
20
40
3.22
3.24
3.26
3.28
3.30
3.32
3.34
3.36
3.20
0
100
V
LDOIN
= 5V
V
LDOIN
= 12V
STARTUP WAVEFORM
(HEAVY LOAD)
MAX1540A toc14
3.3V
0
2.5V
0
B
D
C
A
400
μ
s/div
4A
2A
0
0
A. ON2, 5V/div
B. INDUCTOR CURRENT,
2A/div
0.5
Ω
LOAD
C. OUT2, 2V/div
D. PGOOD2, 5V/div
STARTUP WAVEFORM
(LIGHT LOAD)
MAX1540A toc15
3.3V
0
2.5V
0
B
D
C
A
200
μ
s/div
4A
2A
0
0
A. ON2, 5V/div
B. INDUCTOR CURRENT,
2A/div
100
Ω
LOAD
C. OUT2, 2V/div
D. PGOOD2, 5V/div
SHUTDOWN WAVEFORM
(DISCHARGE MODE DISABLED)
MAX1540A toc16
3.3V
0
5V
0
B
D
C
A
10ms/div
2.5V
0
0
0
A. ON2, 5V/div
B. OUT2, 2V/div
C. INDUCTOR CURRENT,
2A/div
100
Ω
LOAD, OVP/UVP = REF OR GND
D. DL2, 5V/div
E. PGOOD2, 5V/div
5V
E
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MAX1540AETJ+ 功能描述:DC/DC 開關(guān)控制器 Dual Step-Down Ctlr w/Saturation Prot RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK
MAX1540AETJ+T 功能描述:DC/DC 開關(guān)控制器 Dual Step-Down Ctlr w/Saturation Prot RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK
MAX1540ETJ 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK
MAX1540ETJ+ 功能描述:DC/DC 開關(guān)控制器 Dual Step-Down Ctlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK
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