AMS1117

1A Low Dropout Voltage Regulator

09/14/2012

www.advanced-monolithic.com

Phone (925) 443-0722

3

Fax (925) 443-0723

Absolute Maximum Ratings

(1)

Maximum Input Supply Voltage (VIN)…………….............….….-0.3V to 12V

Adjustable Voltage (ADJ)………………………………………….…-0.3V to 12V

Storage Temperature Range………………………...............-65⁰C to 150⁰C

Lead Temperature…………………..………….……………………..……..……260⁰C

Junction Temperature………...………………..……..…………………..……125⁰C

Recommended Operating Conditions

Input Voltage….……………………………………………….…..

3.3V to 12V

Ambient Operating Temperature…………………..……....…-40⁰C to 125⁰C

Thermal Information

(2)

SOT223 θja …………………………………………………………….…….….95⁰C/W*

SOT252 θja……………………………………………………….……….…….80⁰C/W*

SO-8

θ

ja ……………………………………………………………...….…….

80⁰C/W

* With paddle soldered to a PCB copper θJA can vary from 46°C/W

to > 90°C/W depending copper area. See thermal graphs below

and table 1.

Electrical Characteristics

Unless otherwise noted: VIN = VOUT +1.5V, ILOAD = 0mA, CIN = COUT = 22µF, Typical values are TA=25°C

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Units

Reference Voltage

VADJ

VIN = VOUT + 1.5V, ILOAD = 10mA

1.232

1.250

1.268

V

VIN = VOUT + 1.5V, ILOAD = 10mA to 800mA

1.225

1.250

1.275

V

Output Voltage

(3)

VIN = 3V, VOUT = 1.25V

1.231

1.25

1.269

V

VIN = 3V, VOUT = 1.5V

1.478

1.470

1.500

1.500

1.522

1.530

V

V

VIN = 3.3V, VOUT = 1.8V

1.773

1.764

1.800

1.800

1.827

1.836

V

V

VIN = 4V, VOUT = 2.5v

2.463

2.450

2.500

2.500

2.537

2.550

V

V

VIN = 4.35V, VOUT = 2.85V

2.808

2.793

2.850

2.850

2.892

2.907

V

V

VIN = 4.75V, VOUT = 3.3V

3.251

3.234

3.300

3.300

3.349

3.364

V

V

VIN = 6.5V, VOUT = 5.0V

4.925

4.900

5.000

5.000

5.075

5.100

V

V

Minimum Load Current

IVIN

Adjustable Version

8

10

mA

Ground Pin Current

IGND

VIN = VOUT + 2.5V, Fixed Voltage Only

8

12

mA

Adjust Pin bias current

IADJ_Bias

Adjustable Version

40

120

µA

Output Current Limit

IOUT_CLIM

900

1,500

mA

Load Regulation

IOUT = 0 to 800mA, VIN - VOUT = 1.5V

0.25

%

Line Regulation

VIN = VOUT + 1.5V to 12V, IOUT = 10mA

0.35

%

Dropout Voltage

VDO

IOUT = 100mA

1.25

V

IOUT = 500mA

1.35

(IOUT = 800mA

1.45

PSRR

dVo/dVi

F = 120Hz, IOUT=100mA, VRIPPLE=0.5VP-P, COUT=22µF

F = 10KHz

63

db

Output Noise Voltage

en

BW: 100Hz to 100 KHz

COUT=22µF, ILOAD=250mA

150

µ

V(rms)

Thermal Shutdown

TSD

145

°

C

Thermal Shutdown

Hysteresis

TSD_HYS

15

°

C

Thermal Resistance

ΘJC

With package tab in free air

15

°

C/W