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参数资料
| 型号： | MAX1806 |
| 厂商： | Maxim Integrated Products, Inc. |
| 元件分类： | 基准电压源/电流源 |
| 英文描述： | 3A Fixed Low Dropout Linear Regulator (LDO) |
| 中文描述： | 3A固定低压差线性稳压器（LDO） |
| 文件页数： | 6/10页 |
| 文件大小： | 263K |
| 代理商： | MAX1806 |
M
500mA, Low-Voltage Linear Regulator in μMAX
6
_______________________________________________________________________________________
Pin Description
PIN
NAME
FUNCTION
1, 2
IN
Regulator Input. Supply voltage can range from +2.25V to +5.5V. Bypass with a 1
μ
F capacitor to GND (see
Capacitor Selection and Regulation Stability
). Connect both input pins together externally.
3
POK
Open-Drain, Active-Low Power-OK Output. POK remains low while the output voltage (V
OUT
) is below the
POK threshold. Connect a 100k
pullup resistor from POK to OUT.
4
SHDN
Active-Low Shutdown Input. A logic low at
SHDN
reduces supply current to 0.02
μ
A. In shutdown, the POK
output is low. Connect
SHDN
to IN for normal operation.
5
GND
Ground. This pin and the exposed pad also function as a heatsink. Solder both to a large pad or to the
circuit-board ground plane to maximize power dissipation.
6
SET
Voltage-Setting Input. Connect SET to GND for preset output. Connect an external resistive voltage-divider
from OUT to SET to set the output voltage between 0.8V and 4.5V. The SET regulation voltage is 800mV.
7, 8
OUT
Regulator Output. OUT sources up to 500mA. Bypass OUT with a 10
μ
F low-ESR capacitor to GND.
Connect both OUT pins together externally.
LINE-TRANSIENT RESPONSE
MAX1806 toc15
200
μ
s/div
V
IN
1V/div
6V
3V
V
OUT
10mV/div
SHUTDOWN WAVEFORM
MAX1806 toc16
20
μ
s/div
2V
V
1V/div
3V
0
0
V
1V/div
R
OUT
= 6.6
(500mA)
Typical Operating Characteristics (continued)
(MAX1806EUA33, V
IN
= V
OUT
+ 500mV,
SHDN
= IN, C
IN
= 1μF, C
OUT
= 10μF, T
A
= +25
°
C, unless otherwise noted.)
LOAD-TRANSIENT RESPONSE
NEAR DROPOUT
MAX1806 toc14
10
μ
s/div
I
OUT
200mA/div
V
OUT
50mV/div
V
IN
= V
OUT
+ 100mV
C
IN
= 10
μ
F
R
OUT
= 660
TO
6.6
(5mA TO 500mA)
POK WAVEFORM
MAX1806 toc17
200
μ
s/div
V
IN
2V/div
V
2V/div
0
5V
0
0
V
2V/div
R
OUT
= 66
(50mA)
相关PDF资料 |
PDF描述 |
|---|---|
| MAX1806EUA | 3A Fixed Low Dropout Linear Regulator (LDO) |
| MAX1806EUA08 | 3A Fixed Low Dropout Linear Regulator (LDO) |
| MAX1806EUA15 | 3A Fixed Low Dropout Linear Regulator (LDO) |
| MAX1806EUA18 | 3A Fixed Low Dropout Linear Regulator (LDO) |
| MAX1806EUA25 | 3A Fixed Low Dropout Linear Regulator (LDO) |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1806EUA08 | 功能描述:低压差稳压器 - LDO 500mA RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MAX1806EUA08+ | 功能描述:低压差稳压器 - LDO 500mA RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MAX1806EUA08+T | 功能描述:低压差稳压器 - LDO 500mA RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MAX1806EUA08+TG48 | 制造商:Maxim Integrated Products 功能描述:- Tape and Reel |
| MAX1806EUA08-T | 功能描述:低压差稳压器 - LDO 500mA RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
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