2

LTC1626

(Voltages Referred to GND Pin)

Input Supply Voltage (Pins 1, 2, 13) ............– 0.3V to 7V

Shutdown Input Voltage (Pin 10) ................– 0.3V to 7V

LBO, LBI (Pins 3, 4) .................................... – 0.3V to 7V

DC Switch Current (Pin 14) .................................... 1.2A

Peak Switch Current (Pin 14) ................................. 1.6A

Operating Temperature Range ..................... 0

°C to 70°C

Extended Commercial Operating

Temperature Range (Note 4) ............. – 40

°C to 85°C

Junction Temperature (Note 1) ............................. 125

°C

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

°C to 150°C

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

°C

Consult factory for Industrial and Military grade parts.

ORDER PART

NUMBER

TOP VIEW

S PACKAGE

14-LEAD PLASTIC SO

1

2

3

4

5

6

7

14

13

12

11

10

9

8

LBO

LBI

SW

PGND

SGND

SHDN

LTC1626CS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Feedback Pin Current

0.1

1

µA

Feedback Voltage

0

°C to 70°C

q

1.22

1.25

1.28

V

–40

°C to 85°C

q

1.2

1.3

V

Output Voltage Line Regulation

– 40

0

40

mV

Output Voltage Load Regulation

10mA

25

50

mV

Burst Mode Output Ripple

50

Input DC Supply Current (Note 2)

Active Mode

q

1.9

3.0

mA

Sleep Mode

q

165

300

µA

Shutdown

0.5

5

µA

Low-Battery Trip Point

1.15

1.25

1.35

V

Low-Battery Input Bias Current

±0.5

µA

Low-Battery Output Sink Current

0.4

1.4

mA

Current Sense Threshold Voltage

25

mV

130

155

180

mV

ON Resistance of Switch

0.32

0.45

Ω

Switch Off-Time (Note 3)

4

5

6

µs

SHDN Pin High

Minimum Voltage for Device to Be Shut Down

V

SHDN Pin Low

Maximum Voltage for Device to Be Active

0.4

V

SHDN Pin Input Current

0V

q

±1

µA

temperature range.

dissipation according to the following formula:

Note 2: Dynamic supply current is higher due to the gate charge being

delivered at the switching frequency.

off-time increases by approximately 40%.

Note 4: C grade device specifications are guaranteed over the 0

°C to 70°C

temperature range. In addition, C grade device specifications are assured

over the – 40

°C to 85°C temperature range by design or correlation, but

are not production tested.