AAT2500 Datasheet, PDF (6/26 Pages) Advanced Analogic Technologies – 1MHz Step-Down Converter/LDO Regulator

AAT2500
1MHz Step-Down Converter/LDO Regulator
Typical Characteristics
Unless otherwise noted, V_IN = 5V, T_A = 25°C.
LDO Dropout Voltage vs. Temperature
(EN = GND; ENLDO = V_IN)
540
480
I_L = 300mA
420
360
300
240
I_L = 150mA
I_L = 100mA
180
120
60
0
-40 -30 -20 -10 0
I_L = 50mA
10 20 30 40 50 60 70 80 90 100 110 120
Temperature (°C)
LDO Dropout Characteristics
(EN = GND; ENLDO = V_IN)
3.20
3.00
I_OUT = 0mA
2.80
2.60
I_OUT = 300mA
I_OUT = 150mA
2.40
I_OUT = 100mA
2.20
I_OUT = 10mA ^{IOUT = 50mA}
2.00
2.70
2.80
2.90
3.00
3.10
3.20
3.30
Input Voltage (V)
LDO Dropout Voltage vs. Output Current
(EN = GND; ENLDO = V_IN)
500
450
400
350
300
250
200
150
100
50
0
0
85°C
25°C
-40°C
50
100
150
200
250
300
Output Current (mA)
LDO Ground Current vs. Input Voltage
(EN = GND; ENLDO = V_IN)
90.00
80.00
70.00
60.00
50.00
40.00
30.00
20.00
10.00
I_OUT=300mA
I_OUT=0mA
I_OUT=150mA
I_OUT=50mA
I_OUT=10mA
0.00
2
2.5
3
3.5
4
4.5
5
Input Voltage (V)
LDO Output Voltage vs. Temperature
(EN = GND; ENLDO = V_IN)
1.203
1.202
1.201
1.200
1.199
1.198
1.197
1.196
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100
Temperature (°C)
6
LDO Initial Power-Up Response Time
(C_BYP = 10nF; EN = GND; ENLDO = V_IN)
V_ENLDO (5V/div)
V_OUT (1V/div)
400μs/div
2500.2006.05.1.16