Datasheet

Electrical characteristics STCF07
8/26 Doc ID 16757 Rev 3
5 Electrical characteristics
T
A
= 25 °C, V
I
= 3.6 V, 2 x C
I
= 10 µF, C
O
= 1 µF, L = 2.2 µH, R
HC
= 0.22 Ω, R
LC
= 1.8 Ω,
R
X
= 15 kΩ
Table 6. Electrical characteristics
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
I
Input voltage supply 2.7 5.5 V
UVLO Undervoltage lockout V
I
= 2.7 V 2.2 V
V
PW_ONRESET
Power ON reset threshold V
I
rising 2.3 V
I
O
Output current - high current
level
CSEL = V
I
; V
I
= 2.7 V to 5.5 V;
R
HC
= 0.16 Ω, P
OUT
= 3.4 W
1000
mA
Output current - high current
level
CSEL = V
I
; V
I
= 3.2 V to 5.5 V;
R
HC
= 0.16 Ω, P
OUT
= 4 W
1000
Output current - low current
level
CSEL = GND; V
I
= 3.3 V to 5.5 V;
R
HC
+ R
LC
~ 2 Ω
20
V
OUT
Regulated voltage range 2.5 5.3 V
ILIM Inductor peak current
V
I
= 2.7 V, V
OUT
shorted during
operation
2.3 A
FB1 Feedback voltage Low current (CSEL = 0 V) 152 160 168 mV
FB2 Feedback voltage High current (CSEL = V
I
) 152 160 168 mV
R
ON_
FB1-FB2 ON resistance
High current (CSEL = V
I
)
I
O
= 800 mA
90 mΩ
I
Q
Quiescent current in
shutdown mode
EN = GND 1 µA
Quiescent current in high
current mode
EN = V
I
; CSEL = V
I
; V
I
= 3.3 V to
5.5 V; R
HC
= 0.22 Ω
1.8 mA
f
s
Frequency V
I
= 2.7 V 1.8 MHz
n Efficiency V
I
= 3.2 to 4.2 V, I
O
= 800 mA 85 %
OVP
Output overvoltage
protection
V
I
= 5.5 V, no load 5.5 V
OV
HYST
Overvoltage hysteresis V
I
= 5.5 V, no load 0.3 V
OTP Overvoltage protection V
I
= 5.5 V 140 °C
OT
HYST
Overvoltage hysteresis V
I
= 5.5 V 20 °C
V
NTC
NTC voltage reference V
I
= 2.7 V to 5.5 V 1.8 V
V
RX
NTC voltage threshold I
NTC
= 1 mA Max 1.2 V
NTC
LEAK
RX-NTC switch OFF leakage
Shutdown mode,
V
NTC
= 2 V - V
RX
= GND
A
V
IL
Input logic signal level CSEL,
EN
V
I
= 2.7 V to 5.5 V
00.4
V
V
IH
1.4 3