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參數(shù)資料
| 型號： | MAX777L |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Triple 3-Input Positive-NAND Gates 14-CDIP -55 to 125 |
| 中文描述： | 低電壓輸入，3V/3.3V/5V /可調(diào)輸出，升壓型DC - DC轉(zhuǎn)換器 |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 117K |
| 代理商： | MAX777L |
M
Low-Voltage Input, 3V /3.3V /5V /
Adjustable Output, S tep-Up DC-DC Converters
6
_______________________________________________________________________________________
A: SHDN, 2V/div
B: V
OUT
, 1V/div
V
OUT
= 3V
MAX778L
START-UP TIME
A
B
10ms/div
_____________________________Typic al Operating Charac teristic s (c ontinued)
(Circuit of Figure 1, T
A
= +25°C, unless otherwise noted.)
NAME
FUNCTION
1
ILIM
Sets switch current-limit input. Connect to IN for 1A current limit. A resistor from ILIM to IN sets lower
peak inductor currents.
2
IN
Input from battery
3
AGND
Analog ground. Not internally connected to PGND.
PIN
4
PGND
Power ground. Must be low impedance; solder directly to ground plane or star ground. Connect to
AGND, close to the device.
5
LX
Collector of 1A NPN power switch and emitter of Active Rectifier PNP.
6
OUT
Voltage output. Connect filter capacitor close to pin.
7
SHDN
Shutdown input disables power supply when low. Also disconnects load from input. Threshold is set at
V
IN
/2.
8
N.C.
(MAX777L)
No connect—not internally connected.
SEL
(MAX778L)
Selects the main output voltage. 3.3V when hard-wired to AGND, 3.0V when left open.
______________________________________________________________Pin Desc ription
FB
(MAX779L)
Feedback input for adjustable-output operation. Connect to an external voltage divider between V
OUT
and AGND.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX777LCPA | Triple 3-Input Positive-NAND Gates 14-CFP -55 to 125 |
| MAX777LCSA | Low-Voltage Input, 3V/3.3V/5V/ Adjustable Output, Step-Up DC-DC Converters |
| MAX778L | Low-Voltage Input, 3V/3.3V/5V/ Adjustable Output, Step-Up DC-DC Converters |
| MAX779L | Low-Voltage Input, 3V/3.3V/5V/ Adjustable Output, Step-Up DC-DC Converters |
| MAX777LEPA | Low-Voltage Input, 3V/3.3V/5V/ Adjustable Output, Step-Up DC-DC Converters |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX777LEPA | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX77803EWJ+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX77803EWJ+T | 制造商:Maxim Integrated Products 功能描述:- Tape and Reel |
| MAX77803GEWJ+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX77803GEWJ+T | 制造商:Maxim Integrated Products 功能描述:- Tape and Reel |
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