Datasheet > MIC47050_12

MIC47050_12

更新时间： 2022-11-21 10:06:40

品牌	Logo	应用领域
麦瑞 - MICREL		/
页数	文件大小	规格书
16页	486K
描述
500mA ULDO? with Low Input and Low Output Voltage

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MIC47050_12 数据手册

Micrel, Inc.

MIC47050

Absolute Maximum Ratings⁽¹⁾

Operating Ratings⁽²⁾

IN Supply Voltage (V_IN) ................................... –0.3V to +4V

Bias Supply Voltage (V_BIAS)............................. –0.3V to +6V

Enable Voltage (V_EN)....................................... –0.3V to +6V

Power Good Voltage (V_PGOOD) ....................... .–0.3V to +6V

ADJ Pin Voltage (V_ADJ)................................... .–0.3V to +6V

OUT Pin Voltage (V_OUT) ....................................–0.3V to V_IN

Lead Temperature (soldering,10 sec.)....................... 260C

Storage Temperature (T_S).........................–65C to +150C

ESD Rating⁽³⁾.........................................................2kV HBM

IN Supply Voltage (V_IN) ............+1.0V to +3.6V (V_IN< V_BIAS)

Bias Voltage (V_BIAS)...................................... +2.3V to +5.5V

Enable Voltage (V_EN)........................................... 0V to V_BIAS

Power Good Voltage (V_PGOOD) ............................0V to V_BIAS

Output Voltage Range …………….. ................ 0.4V to 2.0V

Junction Temperature (T_J) ........................–40°C to +125°C

Ambient Temperature (T_A) ..........................–40°C to +85°C

Junction Thermal Resistance

2mm x 2mm MLF^®-6L (_JA)................................90°C/W

2mm x 2mm MLF^®-6L (_JC)................................45°C/W

2mm x 2mm Thin MLF^®-6L (_JA)........................90°C/W

2mm x 2mm Thin MLF^®-6L (_JC) .......................45°C/W

Electrical Characteristics⁽⁴⁾

V_IN= V_OUT+ 0.5V; V_BIAS= V_OUT+2.1V; C_OUT= 1µF; I_OUT= 100µA; T_J= 25°C, bold values indicate –40°C≤ T_J≤ +125°C, unless noted.

Parameter

Condition

Min.

Typ.

Max.

Units

Input Supply

Input Voltage Range (V_IN)

V_INUVLO Threshold⁽⁵⁾

V_INUVLO Hysteresis

Ground Current in Shutdown (I_GND

1.0

0.7

3.6

1.0

V_INRising

0.85

A

A

)

V_EN≤ 0.2V (Regulator Shutdown)

0.1

1.0

Ground Current (I_GND

)

I_OUT= 500mA; V_IN= V_OUT+ 0.5V

Bias Supply

BIAS Input Voltage (V_BIAS

V_BIASUVLO Threshold⁽⁵⁾

V_BIASUVLO Hysteresis

)

2.3

1.7

5.5

2.3

V_BIASRising

2.1

_OUT= 100mA

1.15

1.25

330

0.1

Dropout voltage (V_BIAS- V_OUT

V_BIASSupply Current (I_BIAS

)

I_OUT= 500mA

2.1

500

1.0

)

I_OUT= 1mA; V_BIAS= V_OUT+ 2.1V

V_EN≤ 0.2V (Regulator Shutdown)

A

V_BIASSupply Current in Shutdown (I_BIAS

Output Voltage

)

Dropout voltage

_OUT= 100mA

(V_IN- V_OUT

)

I_OUT= 500mA

120

_OUT= 100A

-1.5

-2.0

-0.1

+1.5

+2.0

0.1

Output Voltage Accuracy

V_BIASLine Regulation

I_OUT= 100A

V_BIAS= V_OUT+ 2.1V to 5.5V

0.015

%/V

M9999-040312-B

April 2012

1 2 345 6 7...16

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