2 MHz, Synchronous Boost
DC-to-DC Converters
Data Sheet
ADP1606/ADP1607
FEATURES
TYPICAL APPLICATION CIRCUITS
L
Up to 96% efficiency
2.2µH
0.8 V to VOUT input voltage range
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
INPUT VOLTAGE
ADP1606
0.8V TO V
OUT
FIXED
OUTPUT VOLTAGE
1.8V
1
2
5
6
VIN
EN
SW
C
VOUT
MODE
IN
10µF
ON
PWM
C
OUT
3
OFF
AUTO
GND
4
10µF
True shutdown output isolation
Figure 1. ADP1606
Internal soft start, compensation, and current limit
2 mm × 2 mm, 6-lead LFCSP
L
2.2µH
Compact solution size
INPUT VOLTAGE
ADP1607
0.8V TO V
OUT
ADJUSTABLE
OUTPUT VOLTAGE
1.8V TO 3.3V
1
5
6
VIN
SW
APPLICATIONS
C
10µF
VOUT
IN
1-cell and 2-cell alkaline and NiMH/NiCd powered devices
Portable audio players, instruments, and medical devices
Solar cell applications
R1
R2
ON
C
OUT
3
FB
OFF
2
EN
GND
4
10µF
Miniature hard disk power supplies
Power LED status indicators
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.
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.
The 2 MHz operating frequency enables the use of small
footprint, low profile external components. Additionally, the
synchronous rectification, internal compensation, internal fixed
Rev. D
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