| DC/DC STAGE |
| VIN |
Input voltage |
|
1.8 |
|
5.5 |
V |
| Minimum input voltage for start-up |
0°C ≤ TA ≤ 85°C |
1.5 |
1.8 |
1.9 |
V |
| Minimum input voltage for start-up |
|
1.5 |
1.8 |
2.0 |
V |
| VOUT |
TPS63020 output voltage |
|
1.2 |
|
5.5 |
V |
| Duty cycle in step down conversion |
|
20% |
|
|
|
| VFB_PWM |
TPS63020 feedback voltage |
PS/SYNC = VIN |
495 |
500 |
505 |
mV |
| TPS63021 output voltage |
3.267 |
3.3 |
3.333 |
V |
| VFB_PS |
TPS63020 feedback voltage / TPS63021 output voltage regulation in PS mode |
PS/SYNC = GND; referenced to VFB_PWM |
0.6% |
|
5% |
|
|
Maximum line regulation |
|
|
0.5% |
|
|
|
Maximum load regulation |
|
|
0.5% |
|
|
| f |
Oscillator frequency |
|
2200 |
2400 |
2600 |
kHz |
|
Frequency range for synchronization |
|
2200 |
2400 |
2600 |
kHz |
| ISW |
Average switch current limit |
VIN = VINA = 3.6 V, TA = 25°C |
3500 |
4000 |
4500 |
mA |
|
High side switch on resistance |
VIN = VINA = 3.6 V |
|
50 |
|
mΩ |
|
Low side switch on resistance |
VIN = VINA = 3.6 V |
|
50 |
|
mΩ |
| Iq |
Quiescent current |
VIN and VINA |
IOUT = 0 mA, VEN = VIN = VINA = 3.6 V,
VOUT = 3.3 V |
|
25 |
50 |
μA |
| VOUT |
|
5 |
10 |
μA |
|
TPS63021 FB input impedance |
VEN = HIGH |
|
1 |
|
MΩ |
| IS |
Shutdown current |
VEN = 0 V, VIN = VINA = 3.6 V |
|
0.1 |
1 |
μA |
| CONTROL STAGE |
| UVLO |
Under voltage lockout threshold |
VINA voltage decreasing |
1.4 |
1.5 |
1.6 |
V |
| Under voltage lockout hysteresis |
|
|
200 |
|
mV |
| VIL |
EN, PS/SYNC input low voltage |
|
|
|
0.4 |
V |
| VIH |
EN, PS/SYNC input high voltage |
|
1.2 |
|
|
V |
|
EN, PS/SYNC input current |
Clamped to GND or VINA |
|
0.01 |
0.1 |
μA |
|
PG output low voltage |
VOUT = 3.3 V, IPGL = 10 μA |
|
0.04 |
0.4 |
V |
|
PG output leakage current |
|
|
0.01 |
0.1 |
μA |
|
Output overvoltage protection |
|
5.5 |
|
7 |
V |
|
Overtemperature protection |
|
|
140 |
|
°C |
|
Overtemperature hysteresis |
|
|
20 |
|
°C |