XR71211 Datasheet, PDF (6/12 Pages) Exar Corporation – 1.5A Ultra Low Dropout Voltage Regulator

Typical Performance Characteristics
Unless otherwise noted: V_IN = V_OUT + 0.5V, T_J = T_A = 25°C
VIN, 1V/Div
VOUT, 0.5V/Div
VIN, 1V/Div
VOUT, 0.5V/Div
XR71211
IOUT,
1A/Div
2ms/Div
Figure 1: Current Limit, 1.5VIN, 1VOUT
VOUT, 50mV/Div, AC coupled
32mV overshoot
-41mV undershoot
20mA-1.5A
IOUT, 1A/Div
40µs/Div
Figure 3: Transient Response, 20mA-1.5A, 1.5VIN, 1VOUT
IOUT,
1A/Div
4ms/Div
Figure 2: Short-circuit, 1.5VIN, 1VOUT
VOUT, 50mV/Div, AC coupled
24mV overshoot
-20mV undershoot
0.5A-1.5A
IOUT, 1A/Div
40µs/Div
Figure 4: Transient Response, 0.5A-1.5A, 1.5VIN, 1VOUT
VIN, 1V/Div
VOUT, 0.5V/Div
PGOOD, 1V/Div
IOUT, 1A/Div
10ms/Div
Figure 5: Powerup, IOUT=1.5A, 1.5VIN, 1VOUT
© 2014 Exar Corporation
VIN, 1V/Div
VOUT, 0.5V/Div
PGOOD, 1V/Div
6 / 12
IOUT, 1A/Div
10ms/Div
Figure 6: Powerdown, IOUT=1.5A, 1.5VIN, 1VOUT
exar.com/XR71211
Rev 1B