ADP120(RevB) 데이터 시트보기 (PDF) - Analog Devices
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ADP120 Datasheet PDF : 20 Pages
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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
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 22 μA of quiescent current at
full load makes the ADP120 ideal for battery-operated portable
equipment.
100 mA, Low Quiescent Current,
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
VIN
+
1µF
VOUT
VOUT = 1.8V
+
1µF
EN
GND
Figure 2. ADP120 WLCSP with Fixed Output Voltage, 1.8 V
The ADP120 is available in output voltages 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 and
utilizes the smallest footprint solution for use in a variety of
portable applications.
Rev. B
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