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ADP1610 の電気的特性と機能

ADP1610のメーカーはAnalog Devicesです、この部品の機能は「1.2 MHz DC-DC Step-Up Switching Converter」です。


製品の詳細 ( Datasheet PDF )

部品番号 ADP1610
部品説明 1.2 MHz DC-DC Step-Up Switching Converter
メーカ Analog Devices
ロゴ Analog Devices ロゴ 




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ADP1610 Datasheet, ADP1610 PDF,ピン配置, 機能
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1.2 MHz DC-DC Step-Up Switching Converter
ADP1610
FEATURES
Fully integrated 1.2 A , 0.2 Ω, power switch
Pin-selectable 700 kHz or 1.2 MHz PWM frequency
92% efficiency
Adjustable output voltage up to 12 V
3% output regulation accuracy
Adjustable soft start
Input undervoltage lockout
MSOP 8-lead package
APPLICATIONS
TFT LC bias supplies
Portable applications
Industrial/instrumentation equipment
GENERAL DESCRIPTION
The ADP1610 is a dc-to-dc step-up switching converter with an
integrated 1.2 A, 0.2 Ω power switch capable of providing an
output voltage as high as 12 V. With a package height of less that
1.1 mm, the ADP1610 is optimal for space-constrained
applications such as portable devices or thin film transistor
(TFT) liquid crystal displays (LCDs).
The ADP1610 operates in pulse-width modulation (PWM)
current mode with up to 92% efficiency. Adjustable soft start
prevents inrush currents at startup. The pin-selectable switching
frequency and PWM current-mode architecture allow excellent
transient response, easy noise filtering, and the use of small,
cost-saving external inductors and capacitors.
The ADP1610 is offered in the Pb-free 8-lead MSOP and
operates over the temperature range of −40°C to +85°C.
FB 2
RT 7
FUNCTIONAL BLOCK DIAGRAM
REF
COMP
1
ERROR
AMP
gm
IN
6
BIAS
ADP1610
RAMP
GEN
OSC
F/F
RQ
S
COMPARATOR
DRIVER
5 SW
SS 8
SD 3
SOFT START
Figure 1.
CURRENT
SENSE
AMPLIFIER
4
GND
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved.

1 Page





ADP1610 pdf, ピン配列
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ADP1610
SPECIFICATIONS
VIN = 3.3 V, TA = −40°C to +85°C, unless otherwise noted.
All limits at temperature extremes are guaranteed by correlation and characterization using standard statistical quality control (SQC),
unless otherwise noted.
Table 1.
Parameter
SUPPLY
Input Voltage
Quiescent Current
Nonswitching State
Shutdown
Switching State1
Symbol Conditions
VIN
IQ VFB = 1.3 V, RT = VIN
IQSD VSD = 0 V
IQSW fSW = 1.23 MHz, no load
Min Typ Max Unit
2.5 5.5 V
390 600
0.01 10
12
µA
µA
mA
OUTPUT
Output Voltage
Load Regulation
Overall Regulation
REFERENCE
Feedback Voltage
Line Regulation
ERROR AMPLIFIER
Transconductance
Voltage Gain
FB Input Bias Current
SWITCH
SW On Resistance
SW Leakage Current
Peak Current Limit2
OSCILLATOR
Oscillator Frequency
Maximum Duty Cycle
SHUTDOWN
Shutdown Input Voltage Low
Shutdown Input Voltage High
Shutdown Input Bias Current
SOFT START
SS Charging Current
UNDERVOLTAGE LOCKOUT3
UVLO Threshold
UVLO Hysteresis
VOUT
VFB
gm
AV
RON
ICLSET
fOSC
DMAX
VIL
VIH
ISD
ILOAD = 10 mA to 150 mA, VOUT = 10 V
Line, load, temperature
VIN = 2.5 V to 5.5 V
I = 1 µA
VFB = 1.23 V
ISW = 1.0 A
VSW = 12 V
RT = GND
RT = IN
COMP = open, VFB = 1 V, RT = GND
Nonswitching state
Switching state
VSD = 3.3 V
VSS = 0 V
VIN rising
VIN 12
0.05
±3
V
mV/mA
%
1.212 1.230 1.248
−0.15
+0.15
V
%/V
100 µA/V
60 dB
10 nA
200 400
0.01 20
2.0
mΩ
µA
A
0.49 0.7
0.885 MHz
0.89 1.23 1.6
MHz
78 83 90
%
0.6
2.2
0.01 1
V
V
µA
3
2.2 2.4 2.5
220
µA
V
mV
1 This parameter specifies the average current while switching internally and with SW (Pin 5) floating.
2 Guaranteed by design and not fully production tested.
3 Guaranteed by characterization.
Rev. 0 | Page 3 of 16


3Pages


ADP1610 電子部品, 半導体
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ADP1610
TYPICAL PERFORMANCE CHARACTERISTICS
100
VOUT = 10V
90 FSW = 700kHz
L = 10µH
80
70
VIN = 5.5V
VIN = 3.3V
VIN = 2.5V
60
50
40
30
20
10
0
1 10 100 1000
LOAD CURRENT (mA)
Figure 4. Output Efficiency vs. Load Current
100
VOUT = 10V
90 F = 1.2MHz
L = 4.7µH
80
70
VIN = 5.5V
VIN = 3.3V
VIN = 2.5V
60
50
40
30
20
10
0
1 10 100 1000
LOAD CURRENT (mA)
Figure 5. Output Efficiency vs. Load Current
100
VOUT = 7.5V
FSW = 700kHz
90 L = 10µH
80
VIN = 5.5V
VIN = 3.3V
VIN = 2.5V
70
60
50
40
30
1 10 100
LOAD CURRENT (mA)
Figure 6. Output Efficiency vs. Load Current
1000
100
VOUT = 7.5V
FSW = 1.2MHz
90 L = 4.7µH
80
VIN = 5.5V
VIN = 3.3V
VIN = 2.5V
70
60
50
40
30
1 10 100
LOAD CURRENT (mA)
Figure 7. Output Efficiency vs. Load Current
1000
2.4
2.2 VIN = 5.5V
2.0 VIN = 3.3V
1.8
VIN = 2.5V
1.6
1.4
1.2
–40
–15 10 35 60
AMBIENT TEMPERATURE (°C)
85
Figure 8. Current Limit vs. Ambient Temperature, VOUT = 10 V
1.4
1.2
RT = VIN
1.0
0.8
0.6 RT = GND
0.4
0.2 VOUT = 10V
VIN = 3.3V
0
–40 –15
10
35
60
AMBIENT TEMPERATURE (°C)
85
Figure 9. Oscillatory Frequency vs. Ambient Temperature
Rev. 0 | Page 6 of 16

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