ELECTRICAL CHARACTERISTICS continued

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Vdrop

Dropout Voltage

Iout=100mA

1.23

1.3

V

Iout=1A

1.3

1.5

V

Ilimit

Current Limit

Vin-Vout=2V, Tj=25°C

1

A

SVR

Supply Voltage Rejection

f = 120Hz, VIN − VOUT = 3V + 1VPP Ripple

60

dB

Imin

Minimum Load Current

LR1117-ADJ

2

10

mA

Iq

Quiescent Current

LR1117-1.2V, Vin =10V

2

5

mA

LR1117-1.5V, Vin =11V

2

5

mA

LR1117-1.8V, Vin =12V

2

5

mA

LR1117-2.5V,Vin =12V

2

5

mA

LR1117-3.3V, Vin =12V

2

5

mA

LR1117-5.0V, Vin =12V

2

5

mA

LR1117-12.0V, Vin =20V

2

5

mA

IAdj

Adjust Pin Current

LR1117-ADJ

55

120

uA

Vin =5V, 10mA≤Iout≤1A

Ichange

Iadj change

LR1117-ADJ

0.2

10

uA

Vin =5V, 10mA≤Iout≤1A

ΔV/ΔT

Temperature coefficient

±100

ppm



JC

Thermal Resistance

SOT-223

20

°C/W

TO-252

10



JA

Thermal Resistance

Junction-to-Ambient

(No air flow)

SOT-223 (No heat sink)

136

°C/W

TO-252 (No heat sink)

92

Note1: All test are conducted under ambient temperature 25°C and within a short period of time 20ms

Note2: Load current smaller than minimum load current of LR1117C-ADJ will lead to unstable or oscillation output.

BLOCK DIAGRAM

LESHAN RADIO COMPANY, LTD.

Feb 2011 Ver1.2

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