LTC1502CS8-3.3 datasheet(2/8 Pages) LINER

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LTC1502-3.3

ABSOLUTE MAXIMUM RATINGS

Operating Temperature Range

Commercial ............................................ 0

°C to 70°C

Extended Commercial (Note 4) .......... – 40

°C to 85°C

Industrial ........................................... – 40

°C to 85°C

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

°C

VIN to GND .................................................. – 0.3V to 2V

VOUT to GND ............................................... – 0.3V to 5V

All Other Pins to GND ................................. – 0.3V to 5V

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

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

°C to 150°C

(Note 1)

PACKAGE/ORDER INFORMATION

ORDER PART

NUMBER

ORDER PART

NUMBER

LTC1502CS8-3.3

LTC1502IS8-3.3

S8 PART MARKING

Consult factory for Military grade parts.

TJMAX = 125°C, θJA = 150°C/ W

LTC1502CMS8-3.3

MS8 PART MARKING

LTEC

TJMAX = 125°C, θJA = 250°C/ W

C1+

C1–/SHDN

GND

VOUT

C3+

C3 –

VIN

TOP VIEW

MS8 PACKAGE

8-LEAD PLASTIC MSOP

TOP VIEW

VOUT

C3+

C3 –

VIN

C1+

C1–/SHDN

GND

S8 PACKAGE

8-LEAD PLASTIC SO

150233

502I33

ELECTRICAL CHARACTERISTICS

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VIN Operating Voltage

0.9

1.8

Minimum VIN Start-Up Voltage

TA = 0°C to 70°C (Note 2)

0.75

0.9

TA = –40°C to 85°C (Note 2)

1.1

VOUT Voltage

IOUT ≤ 3.5mA, 0.9V ≤ VIN ≤ 1.8V

3.17

3.3

3.43

IOUT ≤ 10mA, 1V ≤ VIN ≤ 1.8V

3.17

3.3

3.43

VIN Operating Current

IOUT = 0mA

µA

VIN Shutdown Current

C1–/SHDN = 0V

515

µA

Output Ripple

IOUT = 10mA, VIN = 1.25V

mVP-P

Efficiency

VIN = 1V, IOUT = 10mA

Switching Frequency

Oscillator Free-Running

500

kHz

C1–/SHDN Shutdown Input Threshold

C1–/SHDN in Hi-Z Sampling State

0.20

0.55

0.85

C1–/SHDN Shutdown Input Current

C1–/SHDN = 0V (Note 3)

– 0.5

– 2.5

– 8

µA

VOUT Turn-On Time

VIN = 1V, IOUT = 0mA

VOUT Short-Circuit Current

VIN = 1.5V, VOUT Forced to 0V

The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C.

VIN = 0.9V to 1.8V, C1 = C3 = 1µF, CIN = C2 = COUT = 10µF unless otherwise specified.

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

of the device may be impaired.

Note 2: Start-up testing is done with a 100k

Ω equivalent load on VOUT.

Note 3: Currents flowing into the device are positive polarity. Currents

flowing out of the device are negative polarity.

Note 4: Commercial grade specifications are guaranteed over the 0

°C to

°C operating temperature range. In addition, commercial grade

specifications are assured over the –40

°C to 85°C operating temperature

range by design, characterization and correlation with statistical process

controls. Industrial grade specifications are guaranteed and tested over the

–40

°C to 85°C operating temperature range.

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