2

LTC1911-1.5/LTC1911-1.8

1911f

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

q

2.7

5.5

V

LTC1911-1.5, 0mA

q

1.44

1.5

1.56

V

LTC1911-1.8, 0mA

q

1.73

1.8

1.87

V

q

180

350

µA

q

10

20

µA

Output Ripple

5

12

600

mA

Switching Frequency

Oscillator Free Running

1.2

1.5

1.8

MHz

SS/SHDN Input Threshold

q

0.3

0.6

1

V

SS/SHDN Soft-Start Current

q

–5

–2

–1

µA

0.01

µA

Turn-On Time

0.03

ms

10

ms

Load Regulation

0V

0.13

mV/mA

Line Regulation

0V

0.3

%/V

(Note 1)

Operating Temperature Range (Note 2) .. – 40

°C to 85°C

Storage Temperature Range ................. – 40

°C to 150°C

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

°C

ORDER PART

NUMBER

LTC1911EMS8-1.5

LTC1911EMS8-1.8

otherwise noted.

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

MS8 PART MARKING

1

2

3

4

GND

8

7

6

5

SS/SHDN

TOP VIEW

MS8 PACKAGE

8-LEAD PLASTIC MSOP

LTMY

LTNU

ELECTRICAL CHARACTERISTICS

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

of a device may be impaired.

Note 2: The LTC1911E is guaranteed to meet specified performance 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 3: Currents flowing into the device are positive polarity. Currents

flowing out of the device are negative polarity.

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