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参数资料
| 型号： | MAX1857EUA47 |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 基准电压源/电流源 |
| 英文描述： | 500mA, Low-Dropout, Ripple-Rejecting LDO in MAX |
| 中文描述： | FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, 0.175 V DROPOUT, PDSO8 |
| 封装： | MICRO MAX PACKAGE-8 |
| 文件页数： | 2/10页 |
| 文件大小： | 245K |
| 代理商： | MAX1857EUA47 |
M
500mA, Low-Dropout,
Ripple-Rejecting LDO in μMAX
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
IN,
SHDN
,
RST
, SET to GND....................................-0.3V to +6V
OUT to GND ................................................-0.3V to (V
IN
+ 0.3V)
Output Short-Circuit Duration........................................Indefinite
Continuous Power Dissipation (T
A
= +70°C)
8-Pin μMAX (derate 4.5mW/°C above +70°C).............362mW
ELECTRICAL CHARACTERISTICS
(V
IN
= +5.25V, V
OUT
= 4.75V,
SHDN
= IN, SET = GND,
T
A
= 0°C to +85°C
, unless otherwise noted. Typical values are at T
A
= +25°C.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
PARAMETER
SYMBOL
V
IN
V
UVLO
CONDITIONS
MIN
2.5
2.0
-1
-1.5
-2
TYP
MAX
5.5
2.3
+1
+1.5
+2
UNITS
V
V
Input Voltage
Input Undervoltage Lockout
Rising, 75mV hysteresis
2.15
V
OUT
≥
2.5V
V
OUT
< 2.5V
I
OUT
= 100mA,
T
A
= +85
°
C
I
OUT
= 100mA, T
A
= 0
°
C to +85
°
C
%
Output Voltage Accuracy
(Preset Mode)
V
OUT
I
OUT
= 1mA to 500mA, V
IN
> V
OUT
+ 0.5V,
T
A
= 0
°
C to +85
°
C
-3
+3
%
Adjustable Output Voltage
Range
V
SET
= 1.25V
1.25
5
V
T
A
= +85
°
C
1.229
1.250
1.271
SET Voltage Threshold
(Adjustable Mode)
V
SET
V
IN
= +2.7V,
V
OUT
set to 2.0V,
I
OUT
= 100mA
T
A
= 0
°
C to +85
°
C
1.219
1.281
V
Maximum Output Current
Short-Circuit Current Limit
In-Regulation Current Limit
SET Dual Mode
Threshold
SET Input Bias Current
I
OUT
I
LIM
V
IN
≥
2.7V
V
OUT
= 0, V
IN
≥
2.7V
V
OUT
> 96% of nominal value, V
IN
≥
2.7V
500
0.55
mA
RMS
A
A
mV
nA
1.2
2.0
100
2.2
50
-100
150
+100
250
I
SET
V
SET
= 1.25V
I
OUT
= 1mA
I
OUT
= 500mA
135
175
Ground-Pin Current
I
Q
μ
A
Dropout Voltage (Note 1)
V
IN
-
V
OUT
I
OUT
= 500mA
120
175
mV
Line Regulation
V
LNR
V
IN
from (V
OUT
+ 100mV) to 5.5V,
I
LOAD
= 5mA
I
OUT
= 1mA to 500mA
10Hz to 1MHz, C
OUT
= 3.3
μ
F (ESR < 0.1
)
-0.15
0
+0.15
%/V
Load Regulation
Output Voltage Noise
SHUTDOWN
Shutdown Supply Current
V
LDR
0.4
115
1.0
%
μ
V
RMS
I
OFF
V
IH
V
IL
SHDN
= GND, V
IN
= 5.5V
2.5V < V
IN
< 5.5V
2.5V < V
IN
< 5.5V
SHDN
= IN or GND
0.1
15
μ
A
1.6
SHDN
Input Threshold
0.6
100
V
SHDN
Input Bias Current
10
nA
Dual Mode is a trademark of Maxim Integrated Products.
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相关代理商/技术参数 |
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|---|---|
| MAX1857EUA47+ | 功能描述:低压差稳压器 - LDO 500mA Ripple-Rejecting 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 |
| MAX1857EUA47+T | 功能描述:低压差稳压器 - LDO 500mA Ripple-Rejecting 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 |
| MAX1857EUA47-T | 功能描述:低压差稳压器 - LDO 500mA Ripple-Rejecting 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 |
| MAX1858AEEG | 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1858AEEG+ | 功能描述:电压模式 PWM 控制器 Dual 180 Out Buck Controllers RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
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