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ADP121CB-2.5-EVALZ View Datasheet(PDF) - Analog Devices

Part NameADP121CB-2.5-EVALZ ADI
Analog Devices ADI
Description150 mA, Low Quiescent Current, CMOS Linear Regulator


ADP121CB-2.5-EVALZ Datasheet PDF : 20 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
ADP121
0.35
0.30
0.25
0.20
VIN = 2.30
VIN = 2.50
VIN = 3.00
VIN = 3.50
VIN = 4.20
VIN = 5.50
0.15
0.10
0.05
0
–50 –25
0
25
50
75
TEMPERATURE (°C)
100 125
Figure 11. Shutdown Current vs. Temperature at Various Input Voltages
180
TA = 25°C
160
140
120
100
80
VOUT = 2.5V
60
VOUT = 3.3V
40
20
0
1
10
100
1000
ILOAD (mA)
Figure 12. Dropout Voltage vs. Load Current, TSOT
3.35
3.30
VOUT = 3.3V
TA = 25°C
3.25
3.20
3.15
3.10
3.05
3.20
3.25
3.30
3.35 3.40 3.45
VIN (V)
VOUT @ 1mA
VOUT @ 10mA
VOUT @ 20mA
VOUT @ 50mA
VOUT @ 100mA
VOUT @ 150mA
3.50 3.55 3.60
Figure 13. Output Voltage vs. Input Voltage (In Dropout), TSOT
Data Sheet
140
TA = 25°C
120
100
80
60
VOUT = 2.5V
40
VOUT = 3.3V
20
0
1
10
100
1000
ILOAD (mA)
Figure 14. Dropout Voltage vs. Load Current, WLCSP
3.35
3.30
VOUT = 3.3V
TA = 25°C
3.25
3.20
3.15
3.10
3.05
3.20
3.25
3.30
3.35 3.40 3.45
VIN (V)
VOUT @ 1mA
VOUT @ 10mA
VOUT @ 20mA
VOUT @ 50mA
VOUT @ 100mA
VOUT @ 150mA
3.50 3.55 3.60
Figure 15. Output Voltage vs. Input Voltage (In Dropout), WLCSP
60
VOUT = 3.3V
TA = 25°C
50
40
30
20
10
0
3.20
ILOAD = 1mA
ILOAD = 10mA
ILOAD = 20mA
ILOAD = 50mA
ILOAD = 100mA
ILOAD = 150mA
3.25 3.30 3.35 3.40 3.45
VIN (V)
3.50
3.55 3.60
Figure 16. Ground Current vs. Input Voltage (In Dropout)
Rev. G | Page 8 of 20
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GENERAL DESCRIPTION
The ADP121 is a quiescent current, low dropout, linear regulator that operates from 2.3 V to 5.5 V and provides up to 150 mA of output current. The low 135 mV dropout voltage at 150 mA load improves efficiency and allows operation over a wide input voltage range. The low 30 μA of quiescent current at full load makes the ADP121 ideal for battery-operated portable equipment.
The ADP121 is available in output voltages ranging from 1.2 V to 3.3 V. The parts are optimized for stable operation with small 1 μF ceramic output capacitors. The ADP121 delivers good transient performance with minimal board area.
Short-circuit protection and thermal overload protection circuits prevent damage in adverse conditions. The ADP121 is available in a tiny 5-lead TSOT and 4-ball 0.4 mm pitch halide-free WLCSP packages and utilizes the smallest footprint solution to meet a variety of portable applications.

FEATURES
  Input voltage range: 2.3 V to 5.5 V
  Output voltage range: 1.2 V to 3.3 V
  Output current: 150 mA
  Low quiescent current
     IGND = 11 μA with 0 μA load
     IGND = 30 μA with 150 mA load
  Low shutdown current: <1 μA
  Low dropout voltage
     90 mV @ 150 mA load
  High PSRR
     70 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
  Output voltage accuracy: ±1%
  Stable with a 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 cameras and audio devices
  Portable and battery-powered equipment
  Post dc-to-dc regulation
  Post regulation

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