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參數(shù)資料
| 型號： | MAX1966ESA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Low-Cost Voltage-Mode PWM Step-Down Controllers |
| 中文描述： | 1 A SWITCHING CONTROLLER, 127 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 0.150 INCH, SOIC-8 |
| 文件頁數(shù)： | 6/15頁 |
| 文件大?。?/td> | 404K |
| 代理商： | MAX1966ESA |
M
Low-Cost Voltage-Mode PWM
Step-Down Controllers
6
_______________________________________________________________________________________
M
I
OUT
V
IN
= 5.0V
V
= 1.8V
L = 22
μ
F
Typical Operating Characteristics (continued)
(T
A
= +25
°
C, unless otherwise noted.)
1A/div
1V/div
2V/div
INDUCTOR
CURRENT
VOUT
VIN
10ms/div
SHUTDOWN WAVEFORMS
M
NO LOAD
Pin Description
PIN
MAX1966
MAX1967
NAME
FUNCTION
1
10
BST
Positive Supply of DH Driver. Connect 0.1μF ceramic capacitor between BST and LX.
Compensation Pin. Pulling COMP/EN low with an open-collector or open-drain device
turns off the output.
Feedback Input. Connect a resistive divider network to set V
OUT
. F
B
threshold is 0.8V.
Internal Chip Supply. Connect to VL via a 10
resistor.
Power Supply for LDO Regulator in the MAX1967 and Chip Supply for the MAX1966.
Bypass with a ceramic capacitor to ground (see application circuit).
2
1
COMP/EN
3
—
2
3
FB
VCC
4
4
VIN
—
5
VL
Output of Internal 5V LDO. Bypass with a 2.2μF capacitor to GND, or if VIN < 5.5,
connect VL to VIN and bypass with a 0.1μF capacitor to GND.
5
6
6
7
DL
GND
Low-Side External MOSFET Gate-Driver Output. D
L
swings from V
L
to GND.
Ground and Negative Current-Sense Input
Inductor Switching Node. L
X
is used for both current limit and the return supply of the
D
H
driver.
High-Side External MOSFET Gate-Driver Output. D
H
swings from BST to L
X
.
7
8
LX
8
9
DH
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1966ESA+ | 功能描述:電壓模式 PWM 控制器 Voltage-Mode PWM Step-Down RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| MAX1966ESA+T | 功能描述:電壓模式 PWM 控制器 Voltage-Mode PWM Step-Down RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| MAX1966ESA-T | 功能描述:電壓模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| MAX1966EVKIT | 功能描述:電壓模式 PWM 控制器 Evaluation Kit for the MAX1966 MAX1967 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| MAX1967EUB | 功能描述:電壓模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
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