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ADP120 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 ADP120
기능 100mA Low Quiescent Current CMOS Linear Regulator
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ADP120 데이터시트, 핀배열, 회로
FEATURES
Input voltage range: 2.3 V to 5.5 V
Output voltage range: 1.2 V to 3.3 V
Output current: 100 mA
Low quiescent current
IGND = 11 μA with zero load
IGND = 22 μA with 100 mA load
Low shutdown current: <1 μA
Low dropout voltage
60 mV @ 100 mA load
High PSRR
73 dB @ 1 kHz at VOUT = 1.2 V
70 dB @ 10 kHz at VOUT = 1.2 V
Low noise: 40 μV rms at VOUT = 1.2 V
No noise bypass capacitor required
Initial accuracy: ±1%
Stable with small 1 μF ceramic output capacitor
16 fixed output voltage options
Current-limit and thermal overload protection
Logic controlled enable
5-lead TSOT package
4-ball 0.4 mm pitch WLCSP
APPLICATIONS
Mobile phones
Digital camera and audio devices
Portable and battery-powered equipment
Post regulation
GENERAL DESCRIPTION
The ADP120 is a low quiescent current, low dropout, linear
regulator that operates from 2.3 V to 5.5 V and provides up to
100 mA of output current. The low 60 mV dropout voltage at
100 mA load improves efficiency and allows operation over a
wide input voltage range. The low 25 μA of quiescent current at
full load makes the ADP120 ideal for battery-operated portable
equipment.
100 mA, Low Quiescent Current,www.DataSheet4U.com
CMOS Linear Regulator
ADP120
TYPICAL APPLICATIONS CIRCUITS
VIN = 2.3V
+
1µF
1 VIN
2 GND
VOUT 5
VOUT = 1.8V
+
1µF
3 EN
NC 4
NC = NO CONNECT
Figure 1. ADP120 TSOT with Fixed Output Voltage, 1.8 V
VIN = 2.3V
+
1µF
VIN
VOUT
VOUT = 1.8V
+
1µF
EN GND
Figure 2. ADP120 WLCSP with Fixed Output Voltage, 1.8 V
The ADP120 is available in 16 fixed output voltage options,
ranging from 1.2 V to 3.3 V. The part is optimized for stable
operation with small 1 μF ceramic output capacitors. The
ADP120 delivers good transient performance with minimal
board area.
Short-circuit protection and thermal overload protection circuits
prevent damage in adverse conditions. The ADP120 is available
in a tiny 5-lead TSOT and a 4-ball 0.4 mm pitch WLCSP for the
smallest footprint solution for use in a variety of portable
applications.
Rev. A
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2008 Analog Devices, Inc. All rights reserved.




ADP120 pdf, 반도체, 판매, 대치품
ADP120
www.DataSheet4U.com
Parameter
POWER SUPPLY REJECTION RATIO
Symbol
PSRR
Conditions
10 kHz, VIN = 5 V, VOUT = 3.3 V
10 kHz, VIN = 5 V, VOUT = 2.5 V
10 kHz, VIN = 5 V, VOUT = 1.2 V
Min Typ Max
60
66
70
Unit
dB
dB
dB
1 Based on an endpoint calculation using 1 mA and 100 mA loads. See Figure 6 for typical load regulation performance for loads less than 1 mA.
2 Dropout voltage is defined as the input-to-output voltage differential when the input voltage is set to the nominal output voltage. This applies only for output
voltages above 2.3 V.
3 Start-up time is defined as the time between the rising edge of EN to VOUT being at 90% of its nominal value.
4 Current limit threshold is defined as the current at which the output voltage drops to 90% of the specified typical value. For example, the current limit for a 3.0 V
output voltage is defined as the current that causes the output voltage to drop to 90% of 3.0 V, or 2.7 V.
RECOMMENDED SPECIFICATIONS: INPUT AND OUTPUT CAPACITORS
Table 2.
Parameter
MINIMUM INPUT AND OUTPUT CAPACITANCE1
CAPACITOR ESR
Symbol
CMIN
RESR
Conditions
TJ = −40°C to +125°C
TJ = −40°C to +125°C
Min Typ Max Unit
0.70 μF
0.001
1 The minimum input and output capacitance should be greater than 0.70 μF over the full range of operating conditions. The full range of operating conditions in the
application must be considered during device selection to ensure that the minimum capacitance specification is met. X7R- and X5R-type capacitors are recommended,
Y5V and Z5U capacitors are not recommended for use with any LDO.
Rev. A | Page 4 of 20

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ADP120 전자부품, 판매, 대치품
ADP120www.DataSheet4U.com
TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 2.3 V, VOUT = 1.8 V, IOUT = 10 mA, CIN = COUT = 1 μF, TA = 25°C, unless otherwise noted.
1.804
1.802
1.800
LOAD = 10µA
LOAD = 100µA
LOAD = 1mA
LOAD = 10mA
LOAD = 100mA
35
30
25
1.798
20
1.796
15
1.794
1.792
1.790
–40°C
–5°C
25°C
TJ (°C)
85°C
125°C
Figure 5. Output Voltage vs. Junction Temperature
10
5
0
–40°C
–5°C
25°C
TJ (°C)
LOAD = 10µA
LOAD = 100µA
LOAD = 1mA
LOAD = 10mA
LOAD = 100mA
85°C
125°C
Figure 8. Ground Current vs. Junction Temperature
1.805
30
1.803
1.801
1.799
1.797
25
20
15
10
5
1.795
0.01
0.1 1 10
ILOAD (mA)
Figure 6. Output Voltage vs. Load Current
100
1.805
1.803
LOAD = 10µA
LOAD = 100µA
LOAD = 1mA
LOAD = 10mA
LOAD = 100mA
1.801
1.799
1.797
1.795
2.3 2.5 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
VIN (V)
Figure 7. Output Voltage vs. Input Voltage
0
0.01
0.1 1
10
ILOAD (mA)
Figure 9. Ground Current vs. Load Current
100
30
25
20
15
10
LOAD = 10µA
LOAD = 100µA
5 LOAD = 1mA
LOAD = 10mA
LOAD = 100mA
0
2.3 2.5 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
VIN (V)
Figure 10. Ground Current vs. Input Voltage
Rev. A | Page 7 of 20

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