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ADP1607 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 ADP1607
기능 2MHz Synchronous Boost DC-to-DC Converter
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ADP1607 데이터시트, 핀배열, 회로
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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rights of third parties that may result from its use. Specifications subject to change without notice. No
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One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2012–2014 Analog Devices, Inc. All rights reserved.
Technical Support
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ADP1607 pdf, 반도체, 판매, 대치품
ADP1606/ADP1607
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
VIN, VOUT to GND
FB to GND
EN, SW, MODE to GND (When VIN ≥ VOUT)
EN, SW, MODE to GND (When VIN < VOUT)
EPAD to GND
Operating Ambient Temperature Range
Maximum Junction Temperature
Storage Temperature Range
Rating
−0.3 V to +3.6 V
−0.3 V to +1.4 V
−0.3 V to VIN + 0.3 V
−0.3 V to VOUT + 0.3 V
−0.3 V to + 0.3 V
−40°C to +85°C
90°C
−65°C to +150°C
Stresses at or above those listed under Absolute Maximum
Ratings may cause permanent damage to the product. This is a
stress rating only; functional operation of the product at these
or any other conditions above those indicated in the operational
section of this specification is not implied. Operation beyond
the maximum operating conditions for extended periods may
affect product reliability.
Absolute maximum ratings apply individually only, not in
combination.
THERMAL OPERATING RANGES
The ADP1606/ADP1607 can be damaged when the junction
temperature limits are exceeded. The maximum operating
junction temperature (TJ )(MAX) takes precedence over the
maximum operating ambient temperature (TA (MAX)).
Monitoring ambient temperature does not guarantee that the
junction temperature (TJ) is within the specified temperature
limits.
In applications with high power dissipation and poor printed
circuit board (PCB) thermal resistance, the maximum ambient
temperature may need to be derated. In applications with
moderate power dissipation and low PCB thermal resistance,
the maximum ambient temperature can exceed the maximum
limit as long as the junction temperature is within specification
limits.
Data Sheet
The junction temperature (TJ) of the device is dependent on the
ambient temperature (TA), the power dissipation of the device
(PD), and the junction-to-ambient thermal resistance of the
package (θJA). Maximum junction temperature (TJ) is calculated
from the ambient temperature (TA) and power dissipation (PD)
using the following formula:
TJ = TA + (PD × θJA)
THERMAL RESISTANCE
Junction-to-ambient thermal resistance (θJA) of the package
is specified for the worst-case conditions, that is, a device
soldered in a circuit board for surface-mount packages. The
junction-to-ambient thermal resistance is highly dependent
on the application and board layout. In applications where high
maximum power dissipation exists, attention to thermal board
design is required. The value of θJA may vary, depending on
PCB material, layout, and environmental conditions.
θJA and θJC (junction to case) are determined according to
JESD51-9 on a 4-layer PCB with natural convection cooling
and the exposed pad soldered to the board with thermal vias.
Table 3.
Package Type
6-Lead LFCSP
θJA
66.06
θJC
4.3
Unit
°C/W
For additional information on thermal resistance, refer to the
Thermal Characteristics of IC Assembly.
ESD CAUTION
Rev. D | Page 4 of 16

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ADP1607 전자부품, 판매, 대치품
Data Sheet
30
27
24
21
18 TA = –40°C
TA = +25°C
TA = +45°C
15 TA = +85°C
1.8 2.3 2.8 3.3
INPUT VOLTAGE (V)
Figure 11. ADP1607 Nonswitching PFM Mode Quiescent Current Measured
on VOUT vs. Input Voltage
5
TA = –40°C
TA = +25°C
TA = +45°C
4 TA = +90°C
3
2
1
0
0.9 1.4 1.9 2.4 2.9
INPUT VOLTAGE (V)
Figure 12. Shutdown Current vs. Input Voltage
170
ISW = 500mA
155
TA = +90°C
140
125
TA = +25°C
110
95
1.8
TA = –40°C
2.3 2.8
OUTPUT VOLTAGE (V)
Figure 13. NMOS Drain-to-Source On Resistance
3.3
ADP1606/ADP1607
270
ISW = 500mA
240
210
TA = +90°C
180
TA = +25°C
150
TA = –40°C
120
1.8
2.3 2.8
OUTPUT VOLTAGE (V)
Figure 14. PMOS Drain-to-Source On Resistance
3.3
1200
1100
VOUT = 1.8 V
1000
VOUT = 2.5V
VOUT = 3.3V
900
800
700
0.8 1.3 1.8 2.3 2.8
INPUT VOLTAGE (V)
Figure 15. Switch Current Limit vs. Input Voltage
140
3.3
120
100
PWM OPERATION
80
60
40
20
0
0.8
PFM OPERATION
VOUT = 2.5V
1.0 1.2 1.4 1.6 1.8 2.0
INPUT VOLTAGE (V)
Figure 16. Auto Mode Transition Thresholds
2.2
Rev. D | Page 7 of 16

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