Analog Devices ADP1607 Evaluation Board ADP1607-EVALZ ADP1607-EVALZ データシート
製品コード
ADP1607-EVALZ
Evaluation Board User Guide
UG-488
One
Technology
Way
•
P.O.
Box
9106
•
Norwood,
MA
02062-9106,
U.S.A.
•
Tel:
781.329.4700
•
Fax:
781.461.3113
Evaluating the ADP1607 2 MHz, Synchronous Boost, DC-to-DC Converter
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. 0 | Page 1 of 8
FEATURES
0.8 V to V
OUT
input voltage range
Low 0.9 V input start-up voltage
Fixed 2 MHz PWM and light load PFM mode options
Fixed 2 MHz PWM and light load PFM mode options
Auto PFM/PWM transition modes (
-EVALZ)
PWM mode only (
-001-EVALZ)
3.3 V output voltage
Jumper for enable/shutdown control
R1 and R2 selected for VOUT = 3.3 V output voltages
Jumper for enable/shutdown control
R1 and R2 selected for VOUT = 3.3 V output voltages
GENERAL DESCRIPTION
The
evaluation board is a complete step-up, dc-to-dc
switching converter application with components selected to allow
operation over the full input voltage and load ranges for VOUT =
3.3 V. The boost converter is set to transition automatically
between PFM and PFM (
operation over the full input voltage and load ranges for VOUT =
3.3 V. The boost converter is set to transition automatically
between PFM and PFM (
-EVALZ) or fixed to operate
in PWM mode only (
-001-EVALZ). The evaluation
boards can be adjusted for different output voltages by changing
the feedback resistors, R1 and R2.
the feedback resistors, R1 and R2.
The
is a high efficiency, synchronous, fixed
frequency, step-up dc-to-dc switching converter with an
adjustable output voltage between 1.8 V and 3.3 V 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 for 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.
This user guide includes I/O descriptions, setup instructions,
and the schematic and PCB layout drawings for the
adjustable output voltage between 1.8 V and 3.3 V 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 for 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.
This user guide includes I/O descriptions, setup instructions,
and the schematic and PCB layout drawings for the
data sheet and should be consulted in conjunction
with this document when using the evaluation board.
TYPICAL APPLICATION CIRCUIT
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
0.8V TO V
OUT
L
2.2µH
C
IN
10µF
C
OUT
10µF
R1
R2
1
1089-
001
Figure 1. Step-Up Regulator Configuration