NCP133_15 datasheet(8/9 Pages) ONSEMI

Part #	NCP133

Description	500 mA, Very Low Dropout Bias Rail CMOS Voltage Regulator

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Manufacturer	ONSEMI [ON Semiconductor]

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NCP133

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Enable Operation

The enable pin will turn the regulator on or off. The

threshold limits are covered in the electrical characteristics

table in this data sheet. If the enable function is not to be used

then the pin should be connected to VIN or VBIAS.

Current Limitation

The internal Current Limitation circuitry allows the

device to supply the full nominal current and surges but

protects the device against Current Overload or Short.

Thermal Protection

Internal thermal shutdown (TSD) circuitry is provided to

protect the integrated circuit in the event that the maximum

junction temperature is exceeded. When TSD activated , the

regulator output turns off. When cooling down under the low

temperature threshold, device output is activated again. This

TSD feature is provided to prevent failures from accidental

overheating.

Activation of the thermal protection circuit indicates

excessive power dissipation or inadequate heatsinking. For

reliable operation, junction temperature should be limited to

+125

°C maximum.

Table 1. RESISTOR VALUES FOR PROGRAMMING THE OUTPUT VOLTAGE

VOUT (V)

R1 (kW)

R2 (kW)

0.8

Short

Open

0.9

10.0

80.6

1.0

19.6

78.7

1.05

24.3

78.7

1.1

24.9

66.5

1.2

33.2

66.5

1.5

43.2

49.9

1.8

41.2

33.2

2.5

42.2

20.0

3.3

61.9

20.0

NOTE:

VOUT = 0.8 x (1 + R1/R2)

Resistors in the table are standard 1% types

ORDERING INFORMATION

Device

Nominal

Output

Voltage

Marking

Rotation

Option

Package

Shipping†

NCP133AMX090TCG

0.9

0 V

D

90

°

Output Active

Discharge

XDFN6

(Pb−Free)

3000 / Tape & Reel

NCP133AMX100TCG

1.00 V

3

0

°

NCP133AMX105TCG

1.05 V

4

0

°

NCP133AMX110TCG

1.10 V

5

0

°

NCP133AMX115TCG

1.15 V

T

90

°

NCP133AMX120TCG

1.20 V

6

0

°

NCP133AMX125TCG

1.25 V

E

90

°

NCP133AMX130TCG

1.30 V

F

90

°

NCP133AMX150TCG

1.50 V

J

90

°

NCP133AMX180TCG

1.80 V

Q

90

°

NCP133AMXADJTCG

ADJ

K

90

°

NCP133BMXADJTCG

ADJ

P

90

°

Non−Active Discharge

†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Spe-

cifications Brochure, BRD8011/D.

To order other package and voltage variants, please contact your ON Semiconductor sales representative

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