LB1183AG-15-AF5-R [UTC]

300mA CMOS LDO;


型号：	LB1183AG-15-AF5-R
厂家：	Unisonic Technologies
描述：	300mA CMOS LDO
文件：	总6页 (文件大小：155K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

UNISONIC TECHNOLOGIES CO., LTD

L1183A

CMOS IC

300mA CMOS LDO



DESCRIPTION

The UTC L1183A is a COMS positive linear regulator. One of it’s

feature is the very low quiescent current typical as low as 30μA and

its dropout voltage is extremely low with 300mA output current.

The internal circuit includes current fold-back to prevent device

failure when the circuit is operated in the bad conditions.

In application, the UTC L1183A needs a low noise, regulated

supply. For stable operation, the output capacitance value should be

2.2μF or more.

The UTC L1183A is an ideal for battery applications, such as

instrumentations, portable electronics, wireless devices, cordless

phones, PC peripherals, and battery powered widgets.



FEATURES

* Accurate To Within 1.5%

* Quiescent Current: 30μA

* With Current Limiting

* Internal Short Circuit Current Fold-Back

* Has Power-Saving Shutdown Mode

* Very Low Temperature Coefficient



ORDERING INFORMATION

Ordering Number

L1183AG-xx-AF5-R

L1183AG-xx-AG6-R

Package

SOT-25

SOT-26

Packing

Tape Reel

Note: xx: Output Voltage, refer to Marking Information.

L1183AG-xx-AF5-R

(1) Packing Type

(1) R: Tape Reel

(2) AF5: SOT-25, AG6: SOT-26

(2) Package Type

(3) xx: Refer to Marking Information

(4) G: Halogen Free and Lead Free

(3) Output Voltage Code

(4) Green Package

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L1183A

CMOS IC



MARKING INFORMATION

PACKAGE

VOLTAGE CODE

MARKING

12:1.2V

15 :1.5V

18:1.8V

25:2.5V

28 :2.8V

30: 3.0V

31 :3.1V

33 :3.3V

50:5.0V

SXXAG

SOT-25

Voltage Code

SXXAG

SOT-26

Voltage Code



PIN CONFIGURATION



PIN DESCRIPTION

PACKAGE

PIN NO.

PIN NAME

DESCRIPTION

Input for voltage input. A 1µF or greater capacitor should be placed in

this pin.

V_IN

GND

Ground.

Enable pin. Pulling his pin low, can shut down the PMOS pass transistor,

and the current consuming can be set less than 1µA.

SOT-25

Output voltage pin. The capacitor which connected between this pin and

V_OUT

GND should be decoupled with a 2.2µF or a greater value low ESR

ceramic capacitor.

Remote Sense.

SENSE

GND

BYP

Ground.

Bypass capacitor for noise reduction.

Enable Input.

SOT-26

V_DD

Supply Input.

V_OUT

Output Voltage.

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L1183A

CMOS IC



BLOCK DIAGRAM

V_IN

Overcurrent Shutdown

AMP

V_OUT

V_REF=1.215V

GND

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L1183A

CMOS IC



ABSOLUTE MAXIMUM RATING (Unless otherwise specified)

PARAMETER

SYMBOL

V_IN

RATINGS

-0.3~ +6.5

-0.3~ V_IN+0.3

300

UNIT

Input Voltage

Input Voltage (EN,BYP)

Output Voltage

V_OUT

I_OUT

P_D

Output Current

Power Dissipation

400

Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.



RECOMMENDED OPERATING CONDITIONS

PARAMETER

SYMBOL

T_A

RATINGS

- 40 ~ +85

150

UNIT

°C

Ambient Temperature

Junction Temperature

Storage Temperature

T_J

°C

T_STG

-65 ~ +150

°C



THERMAL DATA

PARAMETER

SYMBOL

θ_JA

RATINGS

280

UNIT

°C/W

Junction to Ambient

Junction to Case (Note)

θ_JC

140

Note: θ_JCon center of molding compound if IC has on tab.

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L1183A

CMOS IC



ELECTRICAL CHARACTERISTICS (T_A= 25°C, Unless otherwise specified)

PARAMETER

SYMBOL

V_IN

TEST CONDITIONS

MIN TYP MAX UNIT

Input Voltage

Note1

-0.2

6.5

0.2

1.2V≤V_OUT≤1.4V

V_IN=V_OUT+1~V_OUT+2

_OUT=1mA

1.4V<V_OUT≤2.0V

-0.15

0.15

0.1

∆VOUT

Line Regulation

2.0V<V_OUT<4.0V

-0.1 0.02

VOUT

V_IN=V_OUT+1~V_OUT+1.5V

V_OUT=5.0V

-0.1 0.02

0.1

_OUT=1mA

∆VOUT

Load Regulation

_OUT=1mA~300mA

-2

0.2

VOUT

_OUT=1mA

-1.5

-2.5

1.5

2.5

Output Voltage Accuracy

Quiescent Current

I_OUT=300mA

I_OUT=0mA

I_Q

µA

1.2V≤V_O(NOM)≤2.0V

2.4V<V_O(NOM)≤2.8V

2.8V<V_O(NOM)≤5.0V

f=100Hz

1300

400

300

_OUT=300mA

_OUT=V_O(NOM)-2.0%

Dropout Voltage

V_D

_OUT=100mA

_OUT=2.2µF

Power Supply Ripple Rejection PSRR

f=1kHz

f=10kHz

Output Voltage Noise

Output Current

I_OUT

I_LIMIT

I_SC

I_OUT=10mA,C_OUT=2.2µF,f=10Hz~100kHz

V_OUT>1.2V

µV_RMS

µA

300

Current Limit

V_OUT>1.2V

450

150

Short Circuit Current (Note2)

Ground Pin Current

Temperature Coefficient of

Output Voltage

V_OUT<0.8V

300

I_GND

I_OUT=1mA ~300mA

T_CV_O

ppm/°C

V_EH

V_EL

I_EH

V_IN=2.7V~6.5V

2.0

V_IN

0.4

2.0

0.5

EN Input Threshold

V_IN=2.7V~6.5V

V_EN=V_IN, V_IN=2.7V~6.5V

V_EN=0V, V_IN=2.7V~6.5V

V_IN=6.5V, V_O=0V, V_EN<V_EL

I_O=0.4mA, V_EN<V_EL

µA

EN Input Bias Current

I_EL

Shutdown Supply Current

Shutdown Output Voltage

Notes:1. V_IN(MIN)=V_OUT+V_D

I_SD

0.5

V_SD

0.4

2. To prevent the short circuit current protection feature from being prematurely activated, the input voltage

must be applied before a current source load is applied.

Notes: 1. V_IN(MIN)=V_OUT+V_D.

2. To prevent the short circuit current protection feature from being prematurely activated, the input voltage

must be applied before a current source load is applied.

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L1183A

CMOS IC



TYPICAL APPLICATION CIRCUIT

L1183A

GND

V_OUT

INPUT

OUTPUT

V_IN

2.2µF

1µF

UTC assumes no responsibility for equipment failures that result from using products at values that

exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or

other parameters) listed in products specifications of any and all UTC products described or contained

herein. UTC products are not designed for use in life support appliances, devices or systems where

malfunction of these products can be reasonably expected to result in personal injury. Reproduction in

whole or in part is prohibited without the prior written consent of the copyright owner. The information

presented in this document does not form part of any quotation or contract, is believed to be accurate

and reliable and may be changed without notice.

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