ADP1607 반도체 회로 부품 판매점
2MHz Synchronous Boost DC-to-DC Converter
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 ANALOG DEVICES |
Data Sheet
FEATURES
Up to 96% efficiency
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
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
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
2 MHz, Synchronous Boost
DC-to-DC Converters
ADP1606/ADP1607
TYPICAL APPLICATION CIRCUITS
L
2.2µH
INPUT VOLTAGE
0.8V TO VOUT
CIN
10µF
ADP1606
1 VIN
SW 5
VOUT 6
FIXED
OUTPUT VOLTAGE
1.8V
ON
OFF 2 EN
PWM
GND MODE 3 AUTO
COUT
10µF
4
Figure 1. ADP1606
L
2.2µH
INPUT VOLTAGE
0.8V TO VOUT
1
CIN
10µF
ON
OFF
2
ADP1607
VIN SW 5
VOUT 6
EN GND
4
FB 3
ADJUSTABLE
OUTPUT VOLTAGE
1.8V TO 3.3V
R1
COUT
R2 10µF
Figure 2. ADP1607
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
Document Feedback
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Technical Support
www.analog.com
ADP1606/ADP1607
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Typical Application Circuits............................................................ 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 4
Thermal Operating Ranges ......................................................... 4
Thermal Resistance ...................................................................... 4
ESD Caution.................................................................................. 4
Pin Configurations and Function Descriptions ........................... 5
Typical Performance Characteristics ............................................. 6
Theory of Operation ...................................................................... 10
REVISION HISTORY
7/14—Rev. C to Rev. D
Added ADP1606.................................................................Universal
Change to Features Section and General Description Section... 1
Added Figure 1; Renumbered Sequentially .................................. 1
Changes to Table 1............................................................................ 3
Changes to Table 2 and Thermal Resistance Section................... 4
Added Figure 3 and Table 5; Renumbered Sequentially ............. 5
Changes to Table 4............................................................................ 5
Changes to Figure 11........................................................................ 7
Added Figure 26 and Figure 27....................................................... 9
Changes to Figure 28, Overview Section, Modes of Operation
Section, and PWM Mode Section ................................................ 10
Added Table 6.................................................................................. 10
Changes to Auto Mode Section, PFM Mode Section, and Mode
Transition Section........................................................................... 11
Changes to Setting the Output Voltage Section and Inductor
Selection Section............................................................................. 12
Changes to Layout Guidelines Section ........................................ 14
Added Figure 30.............................................................................. 14
Changes to Ordering Guide .......................................................... 15
Data Sheet
Overview ..................................................................................... 10
Enable/Shutdown ....................................................................... 10
Modes of Operation ................................................................... 10
Internal Control Features .......................................................... 11
Applications Information .............................................................. 12
Setting the Output Voltage........................................................ 12
Inductor Selection ...................................................................... 12
Choosing the Input Capacitor .................................................. 13
Choosing the Output Capacitor ............................................... 13
Layout Guidelines........................................................................... 14
Outline Dimensions ....................................................................... 15
Ordering Guide .......................................................................... 15
12/13—Rev. B to Rev. C
Changes to Figure 21.........................................................................9
7/13—Rev. A to Rev. B
Changes to Captions for Figure 22 and Figure 23.........................9
Changed Synchronous Rectification Section.............................. 11
12/12—Rev. 0 to Rev. A
Changes to Features Section ............................................................1
Changed TJ to TA in Specifications Section ...................................3
Changed Figure 6, Figure 7, and Figure 8 Captions .....................6
Changes to Table 5.......................................................................... 12
Changes to Choosing the Output Capacitor Section ................ 13
10/12—Revision 0: Initial Version
Rev. D | Page 2 of 16
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