2 MHz, Synchronous Boost

DC-to-DC Converters

Data Sheet

ADP1606/ADP1607

FEATURES

Up to 96% efficiency

0.8 V to V

Low 0.9 V input start-up voltage

1.8 V fixed output voltage (ADP1606)

1.8 V to 3.3 V adjustable output voltage range (ADP1607)

23 µA quiescent current

Fixed pulse-width modulation (PWM) and light load pulse

frequency modulation (PFM) mode options

Synchronous rectification

True shutdown output isolation

Internal soft start, compensation, and current limit

2 mm × 2 mm, 6-lead LFCSP

Compact solution size

APPLICATIONS

1-cell and 2-cell alkaline and NiMH/NiCd powered devices

Portable audio players, instruments, and medical devices

Solar cell applications

Miniature hard disk power supplies

Power LED status indicators

TYPICAL APPLICATION CIRCUITS

ADP1606

1

2

3

VIN

EN

5

SW

6

VOUT

MODE

ON

OFF

PWM

AUTO

4

GND

FIXED

OUTPUT VOLTAGE

1.8V

INPUT VOLTAGE

L

2.2µH

10µF

10µF

Figure 1. ADP1606

ADP1607

1

2

3

VIN

EN

5

SW

6

VOUT

FB

ON

OFF

4

GND

ADJUSTABLE

OUTPUT VOLTAGE

1.8V TO 3.3V

INPUT VOLTAGE

L

2.2µH

10µF

10µF

R1

R2

Figure 2. ADP1607

GENERAL DESCRIPTION

The ADP1606/ADP1607 are high efficiency, synchronous, fixed

frequency, step-up dc-to-dc switching converters with a 1.8 V

fixed output voltage option and a 1.8 V to 3.3 V adjustable

output voltage option for use in portable applications.

The 2 MHz operating frequency enables the use of small

footprint, low profile external components. Additionally, the

synchronous rectification, internal compensation, internal fixed

current limit, and current mode architecture allow excellent

transient response and a minimal external part count.

Other key features include fixed PWM and light load PFM

mode options, true output isolation, thermal shutdown (TSD),

and logic controlled enable. Available in a lead-free, thin, 6-lead

LFCSP package, the ADP1606/ADP1607 are ideal for providing

efficient power conversion in portable devices.

Rev. D

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