over junction temperature range (unless otherwise noted)
|
MIN |
NOM |
MAX |
UNIT |
| VIN |
Input supply voltage range |
1.1 |
|
6.5 |
V |
| VBIAS |
Bias supply voltage range(1) |
3.0 |
|
6.5 |
V |
| VOUT |
Output voltage range(2) |
0.8 |
|
5 |
V |
| VEN |
Enable voltage range |
0 |
|
VIN |
V |
| IOUT |
Output current |
0 |
|
3 |
A |
| CIN |
Input capacitor |
10 |
47 |
|
μF |
| COUT |
Output capacitor |
47 |
47 || 10 || 10(3) |
|
μF |
| RPG |
Power-good pullup resistance |
10 |
|
100 |
kΩ |
| CNR/SS |
NR/SS capacitor |
|
10 |
|
nF |
| CFF |
Feed-forward capacitor |
|
10 |
|
nF |
| R1 |
Top resistor value in feedback network for adjustable
operation |
|
12.1(4) |
|
kΩ |
| R2 |
Bottom resistor value in feedback network for adjustable
operation |
|
|
160(5) |
kΩ |
| TJ |
Operating junction temperature |
–40 |
|
125 |
°C |
(1) BIAS supply is required when the VIN supply is below
1.4 V. Conversely, no BIAS supply is required when the VIN supply is
higher than or equal to 1.4 V. A BIAS supply helps improve dc and ac performance
for VIN ≤ 2.2 V.
(2) This output voltage range does not include device accuracy or
accuracy of the feedback resistors.
(3) The recommended output capacitors are selected to optimize PSRR
for the frequency range of 400 kHz to 700 kHz. This frequency range is a typical
value for dc-dc supplies.
(4) The 12.1-kΩ resistor is selected to optimize PSRR and noise by
matching the internal R1 value.
(5) The upper limit for the R2 resistor is to ensure
accuracy by making the current through the feedback network much larger than the
leakage current into the feedback node.