TS51221

Final Datasheet

Rev 1.1

April 6, 2015

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Semtech

Thermal Characteristics

Symbol

Parameter

Value

Units

ThermalResistanceJunctiontoAir(Note1)

34.5

°C/W

ThermalResistanceJunctiontoCase(Note1)

2.5

°C/W

StorageTemperatureRange

-65to150

°C

MaximumJunctionTemperature

150

°C

OperatingJunctionTemperatureRange

-40to125

°C

Note 1: Assumes 16LD 3x3 QFN with hi-K JEDEC board and 13.5 inch2 of 1 oz Cu and 4 thermal vias connected to PAD

Recommended Operating Conditions

Symbol

Parameter

Min

Typ

Max

Unit

V

CC

InputOperatingVoltage

4.5

12

24

V

BootstrapCapacitor

17.6

22

26.4

nF

OutputFilterInductorTypicalValue(Note1)

3.76

4.7

5.64

uH

OutputFilterCapacitorTypicalValue(Note2)

33

44(2x22)

uF

OutputFilterCapacitorESR

2

100

mΩ

InputSupplyBypassCapacitorTypicalValue(Note3)

8

10

uF

Note 1: For best performance, an inductor with a saturation current rating higher than the maximum V

current ripple.

Note 2: For best performance, a low ESR ceramic capacitor should be used.

Note 3: For best performance, a low ESR ceramic capacitor should be used. If C