LTC1754-5 datasheet(2/12 Pages) LINER

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LTC1754-3.3/LTC1754-5

ORDER PART

NUMBER

Consult factory for Industrial and Military grade parts.

(Note 1)

VIN to GND .................................................. –0.3V to 6V

VOUT to GND ............................................... –0.3V to 6V

SHDN to GND .............................................. – 0.3V to 6V

IOUT (Note 4) ......................................................... 75mA

VOUT Short-Circuit Duration ............................ Indefinite

Operating Temperature Range (Note 3) ... – 40

°C to 85°C

Storage Temperature Range .................. – 65

°C to 150°C

Lead Temperature (Soldering, 10 sec)................... 300

°C

LTC1754ES6-3.3

LTC1754ES6-5

TJMAX = 150°C, θJA = 230°C/ W

S6 PART MARKING

LTGK

LTLW

The q denotes specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. CFLY = 1µF (Note 2), CIN = 10µF, COUT = 10µF.

VOUT 1

GND 2

SHDN 3

6 C +

5 VIN

4 C –

TOP VIEW

S6 PACKAGE

6-LEAD PLASTIC SOT-23

Note 1: Absolute Maximum Ratings are those values beyond which the life of

a device may be impaired.

Note 2: 0.6

µF is the minimum required CFLY capacitance for rated output

current capability. Depending on the choice of capacitor material, a

somewhat higher value of capacitor may be required to attain 0.6

µF over

temperature.

Note 3: The LTC1754ES6-X is guaranteed to meet performance

specifications from 0

°C to 70°C. Specifications over the –40°C to 85°C

operating temperature range are assured by design, characterization and

correlation with statistical process controls.

Note 4: Based on long term current density limitations.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

LTC1754-3.3

VIN

Input Supply Voltage

2.0

4.4

VOUT

Output Voltage

2.0V

≤ VIN ≤ 4.4V, IOUT ≤ 20mA

3.17

3.30

3.43

2.5V

≤ VIN ≤ 4.4V, IOUT ≤ 40mA

3.17

3.30

3.43

ICC

Operating Supply Current

2.0V

≤ VIN ≤ 4.4V, IOUT = 0mA, SHDN = VIN

µA

Output Ripple

VIN = 2.5V, IOUT = 40mA

mVP-P

Efficiency

VIN = 2.0V, IOUT = 20mA

fOSC

Switching Frequency

Oscillator Free Running

600

kHz

tON

VOUT Turn-On Time

VIN = 2.0V, IOUT = 0mA

0.8

ISC

Output Short-Circuit Current

VIN = 2.5V, VOUT = 0V, SHDN = 2.5V

118

LTC1754-5

VIN

Input Supply Voltage

2.7

5.5

VOUT

Output Voltage

2.7V

≤ VIN ≤ 5.5V, IOUT ≤ 25mA

4.8

5.0

5.2

3.0V

≤ VIN ≤ 5.5V, IOUT ≤ 50mA

4.8

5.0

5.2

ICC

Operating Supply Current

2.7V

≤ VIN ≤ 5.5V, IOUT = 0mA, SHDN = VIN

µA

Output Ripple

VIN = 3V, IOUT = 50mA

mVP-P

Efficiency

VIN = 3V, IOUT = 50mA

82.7

fOSC

Switching Frequency

Oscillator Free Running

700

kHz

tON

VOUT Turn-On Time

VIN = 3V, IOUT = 0mA

0.4

ISC

Output Short-Circuit Current

VIN = 3V, VOUT = 0V, SHDN = 3V

150

LTC1754-3.3/LTC1754-5

ISHDN

Shutdown Supply Current

VIN ≤ 3.6V, IOUT = 0mA, VSHDN = 0V

0.01

µA

3.6V < VIN, IOUT = 0mA, VSHDN = 0V

2.5

µA

VIH

SHDN Input Threshold (High)

1.4

VIL

SHDN Input Threshold (Low)

0.3

IIH

SHDN Input Current (High)

SHDN = VIN

–1

µA

IIL

SHDN Input Current (Low)

SHDN = 0V

–1

µA

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

ELECTRICAL CHARACTERISTICS

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