2

LT1616

(Note 1)

BOOST Pin Voltage ................................................. 35V

BOOST Pin Above SW Pin ...................................... 25V

SHDN Pin ............................................................... 25V

FB Voltage ................................................................ 6V

Current Into FB Pin ...............................................

±1mA

Operating Temperature Range (Note 2) .. – 40

°C to 85°C

Maximum Junction Temperature .......................... 125

°C

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

°C to 150°C

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

°C

ORDER PART

NUMBER

S6 PART MARKING

LT1616ES6

LTNB

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Undervoltage Lockout

3.35

3.6

V

Feedback Voltage

q

1.225

1.25

1.275

V

FB Pin Bias Current

q

150

600

nA

Quiescent Current

Not Switching

1.9

2.5

mA

Quiescent Current in Shutdown

0.01

2

µA

Reference Line Regulation

0.005

%/V

Switching Frequency

q

1

1.4

1.8

MHz

Frequency Shift Threshold on FB Pin

0.44

V

Maximum Duty Cycle

q

80

87

%

Switch Current Limit

(Note 3)

630

850

mA

220

350

mV

Switch Leakage Current

10

µA

Minimum Boost Voltage Above Switch

1.6

2.5

V

BOOST Pin Current

7

12

mA

SHDN Input Voltage High

1.8

V

SHDN Input Voltage Low

0.4

V

SHDN Bias Current

8

15

µA

0.01

0.1

µA

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

BOOST 1

GND 2

FB 3

6 SW

4 SHDN

TOP VIEW

S6 PACKAGE

6-LEAD PLASTIC SOT-23

ELECTRICAL CHARACTERISTICS

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

of the device may be impaired.

Note 2: The LT1616E 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 3: Current limit guaranteed by design and/or correlation to static test.

Slope compensation reduces current limit at higher duty cycle.

Consult factory for parts specified with wider operating temperature ranges.