SUPPLY |
|
II |
Shutdown current into AVIN and PVIN |
CTRL pin connected to ground. |
|
0.1 |
|
µA |
VUVLO |
Undervoltage lockout threshold |
VI rising. |
|
|
2.4 |
V |
VI falling. |
|
|
2.1 |
BOOST CONVERTER |
|
VO |
Output voltage |
|
|
4.6 |
|
V |
Output voltage tolerance |
25°C ≤ TJ ≤ 85°C, no load |
–0.5% |
|
0.5% |
|
–40°C ≤ TJ < 85°C, no load |
–0.8% |
|
0.8% |
rDS(on) |
Switch (low-side) on-resistance |
I(SWP) = 200 mA |
|
200 |
|
mΩ |
Rectifier (high-side) on-resistance |
I(SWP) = 200 mA |
|
350 |
|
|
Switching frequency |
IO = 200 mA |
|
1.7 |
|
MHz |
|
Switch current limit |
Inductor valley current |
0.8 |
1 |
|
A |
|
Short-circuit threshold voltage in operation |
VO falling |
|
4.1 |
|
V |
|
Short-circuit detection time during operation |
|
|
3 |
|
ms |
|
Output sense threshold voltage using OUTP |
V(OUTP) - V(FBS) increasing |
|
300 |
|
mV |
|
Output sense threshold voltage using FBS |
V(OUTP) - V(FBS) decreasing |
|
200 |
|
mV |
|
Input resistance of FBS |
Between FBS pin and ground |
|
4 |
|
MΩ |
|
Discharge resistance |
CTRL pin connected to ground, IO = 1 mA |
|
30 |
|
Ω |
|
Line regulation |
IO = 200 mA |
|
0.002 |
|
%/V |
|
Load regulation |
|
|
0.01 |
|
%/A |
INVERTING BUCK-BOOST CONVERTER |
|
VO |
Output voltage default |
|
|
–4.0 |
|
V |
Output voltage range |
|
–4.4 |
|
–1.4 |
Output voltage tolerance |
|
–0.05 |
|
0.05 |
rDS(on) |
Switch (high-side) on-resistance |
I(SWN) = 200 mA |
|
200 |
|
mΩ |
Rectifier (low-side) on-resistance |
I(SWN) = 200 mA |
|
300 |
|
|
Switching frequency |
IO = 10 mA |
|
1.7 |
|
MHz |
|
Switch current limit |
VI = 2.9 V |
1.5 |
2.2 |
|
A |
|
Short-circuit threshold voltage during operation |
Voltage drop from nominal VO |
|
500 |
|
mV |
Short-circuit threshold voltage during start-up |
|
180 |
200 |
230 |
tSCP |
Short-circuit detection time during start-up |
|
|
10 |
|
ms |
|
Short-circuit detection time during operation |
|
|
3 |
|
ms |
|
Discharge resistance |
CTRL pin connected to ground, IO = 1 mA |
|
150 |
|
Ω |
|
Line regulation |
IO = 200 mA |
|
0.006 |
|
%/V |
|
Load regulation |
|
|
0.31 |
|
%/A |
CTRL |
|
High-level threshold voltage |
|
|
|
1.2 |
V |
|
Low-level threshold voltage |
|
0.4 |
|
|
V |
|
Pull-down resistance |
|
150 |
400 |
860 |
kΩ |
OTHER |
tINIT |
Initialization time |
|
|
300 |
400 |
µs |
tSDN |
Shut-down time |
|
30 |
|
80 |
µs |
tSTORE |
Data storage time |
|
30 |
|
80 |
µs |
TSD |
Thermal shutdown temperature |
|
|
145 |
|
°C |