MAX684：3.3V输入、稳压输出5V的电荷泵 _ BDTIC 中国领先电子元器件代理商

首页 > maxim 美信 > 电源管理 > Charge Pumps 电容电荷泵 > MAX684

MAX684：3.3V输入、稳压输出5V的电荷泵

每100mA输出只需1µF电容

The MAX682/MAX683/MAX684 charge-pump regulators generate 5V from a 2.7V to 5.5V input. They are specifically designed to serve as high-efficiency auxiliary supplies in applications that demand a compact design. The MAX682, MAX683, and MAX684 deliver 250mA, 100mA, and 50mA output current, respectively. These complete 5V regulators require only one resistor and three external capacitors—no inductors are needed. High switching frequencies (externally adjustable up to 2MHz) and a unique regulation scheme allow the use of capacitors as small as 1µF per 100mA of output current. The MAX683/MAX684 are offered in a space-saving 8-pin µMAX package that is only 1.1mm high, while the MAX682 is available in an 8-pin SO.

关键特性

Ultra-Small: 1µF Capacitors per 100mA of Output Current
No Inductors Required
1.1mm Height in µMAX Package (MAX683/MAX684)
Up to 250mA Output Current (MAX682)
Regulated ±4% Output Voltage
50kHz to 2MHz Adjustable Switching Frequency
2.7V to 5.5V Input Voltage
100µA Quiescent Current in Pulse-Skipping Mode
0.1µA Shutdown Current

功能框图

产品应用

3.3V至5V本地转换应用
3V至5V GSM SIMM卡
备用电池升压转换器
电池供电应用
闪存电源
微型设备
PCMCIA卡

关键参数

Part Number

Topology

V_IN
(V)

I_CC
(mA)

Unadj. V_OUT
(V)

I_OUT
(A)

Oper. Freq.
(kHz)

Oper. Temp.
(°C)

Package/Pins

Budgetary
Price

min

max

typ

See Notes

MAX682

Regulated

2.7

5.5

0.18

0.25

1000

-40 to +85

SOIC(N)/8

$2.48 @1k

数据手册DataSheet

英文	MAX682-MAX684.pdf	Rev 1; 08/1998

订购型号

型号	状况	推荐替代产品	封装	温度	RoHS/无铅
MAX684EUA	停止供货	MAX1759EUB+	µMAX,；8引脚；15.6mm²	-40°C至+85°C	RoHS/无铅：否
MAX684EUA+	停止供货	MAX1759EUB+	µMAX,；8引脚；15.6mm²	-40°C至+85°C	RoHS/无铅：无铅
MAX684EUA+T	停止供货	MAX1759EUB+	µMAX,；8引脚；15.6mm²	-40°C至+85°C	RoHS/无铅：无铅
MAX684EUA-T	停止供货	MAX1759EUB+	µMAX,；8引脚；15.6mm²	-40°C至+85°C	RoHS/无铅：否

MAX682-MAX684.pdf MAX682

MAX682-MAX684.pdf MAX684