Datasheet

Electrical characteristics STBB1-AXX
8/22 Doc ID 022197 Rev 2
5 Electrical characteristics
V
IN
= V
INA
= V
EN
= 3.6 V, C
IN
= 10 µF, C
OUT
= 10 µF, L = 2.2 µH, T
J
= - 40 to 85°C (unless
otherwise specified; typical values are referred to T
A
= 25 °C).
Table 6. Electrical characteristics
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
IN
Input voltage range 2.0 5.5 V
V
UVLO
Undervoltage lockout threshold
VINA rising 1.70 1.80
V
VINA falling 1.50 1.60
V
FB
Feedback voltage
485 500 515 mV
T
J
= 25°C 490 500 510 mV
V
OUT
Output voltage range 1.2 5.5 V
Z
FB
FB input impedance 10 MΩ
I
Q
No switching quiescent current
(VIN+VINA) (see Figure 3, 4)
FB = 0.7 V, V
MODE
= 0 V 160 250
µA
FB = 0.7 V, V
MODE
= V
IN
600 750
I
Q
Operating quiescent current
(VIN+VINA)
I
OUT
= 0 A, V
OUT
= 3.3 V,
V
MODE
= 0 V
200 µA
I
OUT
= 0 A, V
OUT
= 3.3 V,
V
MODE
= V
IN
3.4 5.0 mA
I
QSHDN
Shutdown quiescent current V
EN
= 0 V, V
IN
= 3.6 V 0.1 1 µA
freq
Oscillator frequency T
A
= 25°C 1300 1500 1750
kHz
Frequency range for
synchronization
1300 2000
V
EN
Enable input logic low V
IN
= 2.2 V to 5.5 V 0.4
V
Enable input logic high V
IN
= 2.2 V to 5.5 V 1.2
I
EN
Enable pin current V
EN
= 5.5 V 0.01 1 µA
V
MODE/SYNC
MODE/SYNC input logic low V
IN
= 2.2 V to 5.5 V 0.4
V
MODE/SYNC input logic high V
IN
= 2.2 V to 5.5 V 1.2
I
MODE/SYNC
MODE/SYNC pin current V
MODE/SYNC
= 5.5 V 0.01 1 µA
%V
OUT
Line regulation 2.2 V < V
IN
< 5.5 V; I
OUT
= 1 mA 0.5 %
%V
OUT
Load regulation 10 mA < I
OUT
< 1000 mA 1 %
I
SWL
Switch current limitation V
IN
= 3.3 V 1.6 2.3 2.6 A
I
LKN
NMOS leakage current V
IN
= 5.5 V 0.01 1 µA
I
LKP
PMOS leakage current 0.01 1 µA
R
DSon
-N NMOS switch on resistance 0.13 0.35 Ω
R
DSon
-P PMOS switch on resistance 0.13 0.35 Ω