NCP508MT18TBG datasheet(11/15 Pages) ONSEMI

Part #	NCP508MT18TBG

Description	Very Low Noise, Fast Turn On, 50 mA Low Dropout Voltage Regulator

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Manufacturer	ONSEMI [ON Semiconductor]

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NCP508

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Cin = Cout = 1 mF

Vin = VEN = 2.8 V

Vout = 2.5 V

TA = 25°C

Ilimit = 180 mA

Figure 32. Hard Short−Circuit Current (by Copper Wires)

500 ms/div

50 mA/div

0

0.01

0.02

0.03

0.04

0.05

0.06

0

1

2

3

4

5

6

7

8

9

10 11 12 13

Figure 33. Measured Power Operating Area,

1.5 V, TA = 855C, Vout_drop = max 0.1 V

Vin, INPUT VOLTAGE (V)

33 x 26 mm

Figure 34. Evaluation Board

0

50

100

150

200

250

300

350

0

100 200 300 400 500 600 700 800 900 1000

0

0.05

0.1

0.15

0.2

0.25

COPPER HEAT SPREADER AREA (mm2)

PD

qJA

Figure 35. SC70−5 Thermal Resistance vs.

Copper Heat Spreader Area

VEN = Vin

Cin = Cout = 1 mF

TA = 85°C

PCB Copper Thickness = 1.0 oz

50

100

150

200

250

300

400

0

100 200 300 400 500 600 700 800 900

PCB COPPER HEAT SPREADER AREA (mm2)

Figure 36. WDFN6 Thermal Resistance vs.

Copper Heat Spreader Area

350

PCB Copper Thickness = 1.0 oz

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NCP508MT18TBG Datasheet(PDF) 11 Page - ON Semiconductor

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