SC4215J Ver la hoja de datos (PDF) - Semtech Corporation

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Fabricante

SC4215J

Very Low Input / Very Low Dropout 2 Amp Regulator With Soft-Start

Semtech Corporation 

SC4215J

Electrical Characteristics (continued)

Parameter

Symbol

Conditions

Min Typ Max Units

Feedback

Reference Voltage(2)

VREF

VIN = 3.3V, IO =10mA

0.495

0.505

0.500

0.490

0.510

V

0.485

0.515

Line Regulation

Load Regulation (5)

Feedback Pin Current

EN

IO = 10mA

IO = 10mA to 2A

VFB = VREF

0.2

%/V

0.3

%

80

200

nA

Enable Pin Current

IEN

VIH

Enable Pin Threshold

VIL

Over Temperature Protection

VEN = 0V, VIN =3.3V

VIN=3.3V

1.5

10

µA

1.6

V

0.4

High Trip Level

THI

Hysteresis

THYST

Soft-Start

160

OC

10

OC

Soft-Start Time (6)

tSS

0.7

1

ms

Notes:

(1) Minimum VIN = VOUT + VDO or 1.4V, whichever is greater.

(2) Low duty cycle pulse testing with Kelvin connections required.

(3) VDO = VIN -VO when VO decreases by 1.5% of its nominal output voltage with VIN = VO +0.8V.

(4) Required to maintain regulation. Voltage set resistors R1 and R2 are usually utilized to meet this requirement.

(5) Where the power dissipation does not exceed the maximum rating of the package. Refer to Figure 1 on page 8.

(6) Time taken for the output to rise from 0% to 95% of the programmed output voltage.



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