LTC3250-1.5/LTC3250-1.2

2

3250fa

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

LTC3250-1.5 Operating Voltage Range

q

3.1

5.5

V

LTC3250-1.2 Operating Voltage Range

q

2.7

5.5

V

LTC3250-1.5 Output Voltage Range

q

1.44

1.5

1.56

V

q

1.44

1.5

1.56

V

1.44

1.5

1.56

V

LTC3250-1.2 Output Voltage Range

q

1.15

1.2

1.25

V

1.15

1.2

1.25

V

Operating Current

q

35

60

µA

Shutdown Current

SHDN = 0V

q

0.01

1

µA

Burst Mode Operation Output Ripple

12

Continuous Mode Output Ripple

4

Switching Frequency

q

1.2

1.5

1.8

MHz

SHDN Input Hi Voltage

q

1.2

0.8

V

SHDN Input Low Voltage

q

0.8

0.4

V

SHDN Input Current

q

–1

1

µA

SHDN Input Current

SHDN = 0V

q

–1

1

µA

Turn On Time

0.8

ms

LTC3250-1.5 Load Regulation

0

0.15

mV/mA

LTC3250-1.2 Load Regulation

0

0.12

mV/mA

Line Regulation

0.2

%/V

Open-Loop Output Impedance

1.0

Ω

Operating Ambient Temperature Range (Note 3)

........................................................... – 40

°C to 85°C

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

°C to 150°C

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

°C

ORDER PART

NUMBER

S6 PART MARKING

LTZE

LTAGJ

LTC3250ES6-1.5

LTC3250ES6-1.2

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

(Note 1)

Consult LTC Marketing for parts specified with wider operating temperature ranges.

TOP VIEW

S6 PACKAGE

6-LEAD PLASTIC SOT-23

GND 2

SHDN 3

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

of a device may be impaired.

Note 2: Based on long term current density limitations.

Note 3: The LTC3250-1.5E/LTC3250-1.2E are guaranteed to meet

specified performance from 0

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

and 85

°C operating temperature range are assured by design

characterization and correlation with statistical process controls.

Note 5: This IC includes overtemperature protection that is intended to

protect the device during momentary overload conditions. Junction

temperature will exceed 125

°C when overtemperature protection is active.

Continuous operation above the specified maximum operating junction

temperature may impair device reliability.