| INPUT SUPPLY VOLTAGE |
| VIN |
Input voltage range |
|
2.7 |
|
6.5 |
V |
| UVLO |
VIN undervoltage lockout |
VIN rising |
2.35 |
2.45 |
2.6 |
V |
| VIN falling |
2.15 |
2.25 |
2.35 |
V |
| Hysteresis |
|
200 |
|
mV |
| IDDSDN |
Shutdown supply current |
EN1 = EN2 = EN3 = 0 V |
|
9 |
|
µA |
| IDDQ_NSW |
Input quiescent current without buck1/2/3 switching |
EN1 = EN2 = EN3 = 5 V, FB1 = FB2 = FB3 = 0.8 V |
|
790 |
|
µA |
| IDDQ_NSW1 |
EN1 = 5 V, EN2 = EN3 = 0 V, FB1 = 0.8 V |
|
340 |
|
µA |
| IDDQ_NSW2 |
EN2 = 5 V, EN1 = EN3 = 0 V, FB2 = 0.8 V |
|
340 |
|
µA |
| IDDQ_NSW3 |
EN3 = 5 V, EN1 = EN2 = 0 V, FB3 = 0.8 V |
|
340 |
|
µA |
| BUCK1, BUCK2, BUCK3 |
| VFB |
Feedback voltage |
VCOMP = 1.2 V |
0.594 |
0.6 |
0.606 |
V |
| VENXH |
EN1/2/3 high-level input voltage |
|
|
1.2 |
1.26 |
V |
| VENXL |
EN1/2/3 low-level input voltage |
|
1.1 |
1.15 |
|
V |
| IENX1 |
EN1/2/3 pullup current |
ENx = 1 V |
1.8 |
2.1 |
2.4 |
µA |
| IENX2 |
EN1/2/3 pullup current |
ENx = 1.3 V |
|
5.3 |
|
µA |
| IENhys |
Hysteresis current |
|
|
3.2 |
|
µA |
| ISSX |
Soft-start charging current |
|
4.5 |
5.5 |
6.5 |
µA |
| tON_MIN |
Minimum on-time |
|
|
80 |
100 |
ns |
| Gm_EA |
Error amplifier transconductance |
–2 µA < ICOMPX < 2 µA |
|
290 |
|
µS |
| Gm_PS1/2/3 |
COMP1/2/3 voltage to inductor current Gm(1) |
ILX = 0.5 A |
|
10 |
|
A/V |
| ILIMIT1 |
Buck1 peak inductor current limit |
|
3.9 |
4.6 |
5.3 |
A |
| ILIMITSINK1 |
Buck1 low-side sink current limit |
|
|
1.4 |
|
|
| ILIMIT2/3 |
Buck2/3 peak inductor current limit |
|
2.5 |
3.1 |
3.7 |
A |
| ILIMITSINK2/3 |
Buck2/3 low-side sink current limit |
|
|
1.2 |
|
A |
| Rdson_HS1 |
Buck1 high-side switch resistance |
VINQ = 5 V |
|
45 |
|
mΩ |
| Rdson_LS1 |
Buck1 low-side switch resistance |
VINQ = 5 V |
|
50 |
|
mΩ |
| Rdson_HS2 |
Buck2 high-side switch resistance |
VINQ = 5 V |
|
60 |
|
mΩ |
| Rdson_LS2 |
Buck2 low-side switch resistance |
VINQ = 5 V |
|
60 |
|
mΩ |
| Rdson_HS3 |
Buck3 high-side switch resistance |
VINQ = 5 V |
|
60 |
|
mΩ |
| Rdson_LS3 |
Buck3 low-side switch resistance |
VINQ = 5 V |
|
60 |
|
mΩ |
| HICCUP TIMING |
| tHiccup_wait |
Overcurrent wait time(1) |
|
|
512 |
|
cycles |
| tHiccup_re |
Hiccup time before restart(1) |
|
|
16382 |
|
cycles |
| POWER GOOD |
| Vth_PG |
Feedback voltage threshold |
FBx undervoltage falling |
|
92.5 |
|
%VREF |
| FBx undervoltage rising |
|
95 |
|
%VREF |
| tDEGLITCH(PG)_F |
PGOOD falling edge deglitch time |
|
|
128 |
|
cycles |
| tRDEGLITCH(PG)_R |
PGOOD rising edge deglitch time |
|
|
16350 |
|
cycles |
| IPG |
PGOOD pin leakage |
|
|
|
1 |
µA |
| VLOW_PG |
PGOOD pin low voltage |
ISINK = 1 mA |
|
|
0.4 |
V |
| OSCILLATOR |
| FSW |
Switching frequency |
ROSC = 51.1 kΩ |
920 |
1000 |
1080 |
kHz |
| FSW_range |
Switching frequency |
|
250 |
|
2400 |
kHz |
| FSYNC |
Clock sync frequency range |
|
250 |
|
2400 |
kHz |
| tSYNC_w |
Clock sync minimum pulse duration |
|
80 |
|
|
ns |
| FSYNC_HI |
Clock sync high threshold |
|
|
|
2 |
V |
| VSYNC_LO |
Clock sync low threshold |
|
0.4 |
|
|
V |
| THERMAL PROTECTION |
| TTRIP_OTP(1) |
Thermal protection trip point |
Temperature rising |
|
160 |
|
°C |
| THYST_OTP(1) |
Hysteresis |
|
20 |
|
°C |