LTC3336

1

Rev. 0

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TYPICAL APPLICATION

FEATURES

DESCRIPTION

15V/250mA Nanopower Buck

DC/DC with Programmable

Peak Input Current

The LTC®3336 is a compact high efficiency nanopower

hysteretic buck DC/DC which can deliver up to 250mA of

output current from a 2.5V to 15V input. Input quiescent

current is typically 80nA with the output in regulation at

no load for output voltages less than 2.4V; this number

is reduced further for higher output voltages at which

internal circuits can be boot-strapped from the output.

Performance specifications are ideal for primary (i.e.,

plus the ability to set the peak current to a level matched

to the battery’s maximum capacity point.

The peak input currents of 10mA, 30mA, 100mA, and

300mA are pin selectable as well as the output voltages

of 1.2V, 1.5V, 1.6V, 1.8V, 2.0V, 2.4V, 2.5V, 2.8V, 3.0V,

3.2V, 3.3V, 3.6V, 3.7V, 4.1V, 4.2V, and 5.0V.

The LTC3336 is offered in a compact 12-lead 2mm × 2mm

LQFN package.

APPLICATIONS

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Input Voltage Range: 2.5V to 15V

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Output Current: Up to 250mA

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Output Voltage Range: 1.2V to 5V

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16 Fixed Output Voltages Programmed via

4 Pin-Strapped Inputs

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Strapped Inputs (10mA/30mA/100mA/300mA)

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Power Good (PGOOD) Output

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12-Lead 2mm × 2mm LQFN Package

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Low Power Primary Battery Powered Systems (e.g.,

1× – 3× Li-Ion Primary, 3× – 8× AAA)

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Remote Industrial Sensors (e.g., Meters, Alarms)

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Asset Trackers

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Electronic Door Locks

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Keep-Alive Supplies/Battery Backup

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3336 TA01a

+

LTC3336

IPK1

IPK0

EN

SW

PGOOD

L

33H

2.5V/250mA

100F

6.3V

2×

0.1F

10V

OUT2

OUT3

OUT1

OUT0

LOAD CURRENT (A)

100n

1µ

10µ 100µ 1m 10m 100m

1

0

10

20

30

40

50

60

70

80

90

100

3336 TA01b