MAX1725 Datasheet, PDF (3/7 Pages) Maxim Integrated Products – 12V, Ultra-Low IQ, Low-Dropout Linear Regulators

12V, Ultra-Low I_Q, Low-Dropout
Linear Regulators
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V_IN = V_OUT + 1V, SHDN = IN, I_OUT = 1mA, T_A = -40°C to +85°C, unless otherwise noted. Typical values are at
T_A = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
OUT Line-Transient
Overshoot/Undershoot
∆V_IN = ±0.25V, t_R = t_F = 5µs
15
mV
OUT Load-Transient
Overshoot/Undershoot
I_OUT from 1mA to 10mA, t_R = t_F = 1µs
200
mV
OUT Noise
e_n
f = 10Hz to 100kHz
350
Note 1: Limits are 100% production tested at +25°C. All temperature limits are guaranteed by design.
Note 2: Guaranteed by OUT line-regulation testing.
Note 3: OUT accuracy from nominal voltage. The MAX1725 is tested at V_OUT = 1.5V, 2.5V, and 5V.
Note 4: When V_OUT falls to 4% below its value at V_IN = V_OUT + 1V.
µV_RMS
Typical Operating Characteristics
(V_OUT = +3.3V, I_OUT = 1mA, T_A = +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. INPUT VOLTAGE
5
SUPPLY CURRENT vs. LOAD CURRENT
5 _{VIN = 5V}
SUPPLY CURRENT vs. TEMPERATURE
5 _{VIN = 5V}
4
4
4
3
3
3
2
2
2
1
1
1
0
4 5 6 7 8 9 10 11 12
INPUT VOLTAGE (V)
0
0
5
10
15
20
LOAD CURRENT (mA)
0
-40 -20 0
20 40 60 80
TEMPERATURE (°C)
OUTPUT VOLTAGE vs. INPUT VOLTAGE
0
NOMINAL OUTPUT = 3.3V
-0.2
-0.4
-0.6
I_LOAD = 1mA
-0.8
-1.0
I_LOAD = 20mA
-1.2
-1.4
4 5 6 7 8 9 10 11 12
INPUT VOLTAGE (V)
OUTPUT VOLTAGE vs. LOAD CURRENT
0.8
NOMINAL OUTPUT = 3.3V
0.6
V_IN = 4.5V
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
0 2 4 6 8 10 12 14 16 18 20
LOAD CURRENT (mA)
NORMALIZED OUTPUT VOLTAGE
vs. TEMPERATURE
0.30
0.20
0.10
I_OUT = 1mA
0
-0.10
-0.20
-0.30
-40 -20 0 20 40 60 80
TEMPERATURE (°C)
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