at VIN = 3.6V, VOUT = 3.3V,
IOUT = 1mA, CIN = 1µF, COUT = 1µF, and
TA = 25°C (unless otherwise noted)
Figure 5-1 Output Voltage Accuracy vs IOUT
Figure 5-3 Output Voltage Accuracy vs VIN
Figure 5-5 Load
Regulation vs IOUT
Figure 5-7 Dropout Voltage vs IOUT
Figure 5-9 IQ vs VIN
Figure 5-11 IGND vs IOUT
Figure 5-13 Shutdown Current vs VIN
Figure 5-15 Enable Logic Threshold vs Temperature
Figure 5-17 Smart
Enable Pulldown Resistor vs Temperature and VIN
Figure 5-19 VIN UVLO Threshold vs Temperature![TPS7A21-Q1 Start-Up With VEN After VIN GUID-CC615C5A-D986-43F6-A2FD-D93648FF744A-low.jpg](/ods/images/JAJSOF1B/GUID-CC615C5A-D986-43F6-A2FD-D93648FF744A-low.jpg)
VIN = 0V to
4.3V, slew rate = 1V/μs, IOUT = 0mA |
Figure 5-21 Start-Up With VEN After VIN![TPS7A21-Q1 Start-Up With VEN = VIN GUID-2AD0793D-CE51-4939-89A2-28EBAB217555-low.jpg](/ods/images/JAJSOF1B/GUID-2AD0793D-CE51-4939-89A2-28EBAB217555-low.jpg)
VIN = 0V to 4.3V, slew rate = 1V/μs,
IOUT = 500mA |
|
Figure 5-23 Start-Up With VEN = VIN![TPS7A21-Q1 Start-Up Inrush Current GUID-8EE27CF9-1047-4EE2-B523-EA9599920A3B-low.png](/ods/images/JAJSOF1B/GUID-8EE27CF9-1047-4EE2-B523-EA9599920A3B-low.png)
VIN = 4.3V,
VEN = 0V to 4.3V, slew rate = 1V/μs, IOUT = 0mA,
COUT = 10μF |
Figure 5-25 Start-Up Inrush Current ![TPS7A21-Q1 Line
Transient From 3.6V to 4.6V GUID-A5EF3159-48C0-4C53-8566-22D9C240FE91-low.svg](/ods/images/JAJSOF1B/GUID-A5EF3159-48C0-4C53-8566-22D9C240FE91-low.svg)
VEN =
VIN, tr = tf = 5μs,
IOUT = 500mA |
Figure 5-27 Line
Transient From 3.6V to 4.6V
Figure 5-29 Load
Transient From 1mA to 500mA
Figure 5-31 Load
Transient From 0mA to 500mA
Figure 5-33 PSRR
vs Frequency and IOUT
Figure 5-35 PSRR
vs Frequency and VIN
Figure 5-37 PSRR
vs Frequency and COUT
Figure 5-39 Noise
vs Frequency and VIN
Figure 5-41 Noise
vs Frequency and COUT
Figure 5-2 Output Voltage Accuracy vs IOUT
Figure 5-4 Line
Regulation vs VIN
Figure 5-6 Dropout Voltage vs IOUT
Figure 5-8 IQ vs VIN
Figure 5-10 IGND vs IOUT
Figure 5-12 Shutdown Current vs VIN
Figure 5-14 Foldback Current Limit
Figure 5-16 Enable Pin Leakage Current vs VEN – VIN
Figure 5-18 Output Pulldown Resistance vs
Temperature and
VIN![TPS7A21-Q1 Start-Up With VEN Before VIN GUID-43F08961-19BF-43B4-9AA9-B7F0C96EBB98-low.jpg](/ods/images/JAJSOF1B/GUID-43F08961-19BF-43B4-9AA9-B7F0C96EBB98-low.jpg)
VIN = 0V to
4.3V, slew rate = 1V/μs, IOUT = 500mA |
Figure 5-20 Start-Up With VEN Before VIN![TPS7A21-Q1 Start-Up With VEN After VIN GUID-B349AB09-66B3-4F1C-896B-07845D14F211-low.jpg](/ods/images/JAJSOF1B/GUID-B349AB09-66B3-4F1C-896B-07845D14F211-low.jpg)
VIN = 0V to
4.3V, slew rate = 1V/μs, IOUT = 500mA |
Figure 5-22 Start-Up With VEN After VIN![TPS7A21-Q1 Start-Up Inrush Current GUID-01037B02-FCB6-4DB1-8F94-F624500C3F2B-low.png](/ods/images/JAJSOF1B/GUID-01037B02-FCB6-4DB1-8F94-F624500C3F2B-low.png)
VIN = 4.3V, VEN = 0V to 4.3V,
slew rate = 1V/μs, IOUT = 0mA, COUT =
1μF |
Figure 5-24 Start-Up Inrush Current ![TPS7A21-Q1 Start-Up Turn-On Time vs Temperature GUID-E47E62B8-147D-4B3C-ACA4-1B444448EC26-low.png](/ods/images/JAJSOF1B/GUID-E47E62B8-147D-4B3C-ACA4-1B444448EC26-low.png)
VEN = VEN(HI) to
VOUT = 95% of VOUT(NOM),
IOUT = 0mA |
|
Figure 5-26 Start-Up Turn-On Time vs Temperature![TPS7A21-Q1 Line
Transient From 3.6V to 4.6V GUID-0CE64029-DA63-4822-9C0B-2A8E79940568-low.svg](/ods/images/JAJSOF1B/GUID-0CE64029-DA63-4822-9C0B-2A8E79940568-low.svg)
VEN =
VIN, tr = tf = 5μs,
IOUT = 1mA |
Figure 5-28 Line
Transient From 3.6V to 4.6V![TPS7A21-Q1 Load
Transient From 1mA to 500mA GUID-20230802-SS0I-DLQS-M187-9DQZ7M1CX5CG-low.png](/ods/images/JAJSOF1B/GUID-20230802-SS0I-DLQS-M187-9DQZ7M1CX5CG-low.png)
VEN =
VIN, tr = tf =
200ns |
Figure 5-30 Load
Transient From 1mA to 500mA![TPS7A21-Q1 Load
Transient From 0mA to 500mA GUID-20230802-SS0I-N3WN-W1WF-TM1N7MBCX7BM-low.png](/ods/images/JAJSOF1B/GUID-20230802-SS0I-N3WN-W1WF-TM1N7MBCX7BM-low.png)
VEN =
VIN, tr = tf =
200ns |
Figure 5-32 Load
Transient From 0mA to 500mA
Figure 5-34 PSRR
vs Frequency and VIN
Figure 5-36 PSRR
vs Frequency and COUT
Figure 5-38 Noise
vs Frequency and VIN
Figure 5-40 Noise
vs Frequency and IOUT
Figure 5-42 Noise
vs Frequency and COUT