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参数资料
| 型号： | MAX1806EUA18 |
| 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： | FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, PDSO8 |
| 封装： | POWER, MICRO MAX PACKAGE-8 |
| 文件页数： | 9/10页 |
| 文件大小： | 263K |
| 代理商： | MAX1806EUA18 |
M
500mA, Low-Voltage Linear Regulator in μMAX
_______________________________________________________________________________________
9
response graphs (see
Typical Operating Characteris-
tics
) show two components of the output response: a
DC shift from the output impedance due to the load
current change, and the transient response. A typical
transient overshoot for a step change in the load cur-
rent from 5mA to 500mA is 40mV. Increasing the output
capacitor
’
s value and decreasing the ESR attenuates
the overshoot.
Input-Output (Dropout) Voltage
A regulator
’
s minimum input-to-output voltage differen-
tial (dropout voltage) determines the lowest usable sup-
ply voltage. In battery-powered systems, this
determines the useful end-of-life battery voltage.
Because the MAX1806 uses a P-channel MOSFET pass
transistor, its dropout voltage is a function of drain-to-
source on-resistance (R
DS(ON)
) multiplied by the load
current (see
Typical Operating Characteristics
):
V
DROPOUT
= V
IN
- V
OUT
= R
DS(ON)
I
OUT
Chip Information
TRANSISTOR COUNT: 949
OUT
OUT
SET
GND
IN
IN
SHDN
POK
C
OUT
10
F
V
OUT
V
OUT
0.8V
C
IN
1
μ
F
ON
OFF
R
2
R1 = R2
- 1
MAX1806
R
1
V
+2.25V TO +5.5V
Figure 2. Adjustable Output Using External Feedback Resistors
Figure 3. Power Operating Regions: Maximum Output Current
vs. Supply Voltage
0
0.2
0.1
0.3
0.6
0.7
0.5
0.4
0.8
0
1.0 1.5 2.0 2.5
INPUT-OUTPUT VOLTAGE DIFFERENTIAL (V)
0.5
3.0 3.5 4.0 4.5 5.0
M
POWER-
μ
MAX PACKAGE OPERATING
REGION AT T
J(MAX
)
= +150
°
C
T
A
= +85
°
C
T
A
= +70
°
C
T
A
= +50
°
C
CONTINUOUS CURRENT LIMIT
TYPICAL V
DROPOUT
LIMIT
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1806EUA18/V+ | 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 |
| MAX1806EUA18/V+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 |
| MAX1806EUA18+ | 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 |
| MAX1806EUA18+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 |
| MAX1806EUA18-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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