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L6920DCTR

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
Electrical data L6920DC
4/16
2 Electrical data
2.1 Maximum ratings
2.2 Thermal data
Table 2. Absolute maximum ratings
Symbol Parameter Value Unit
V
ccmax
V
cc
to GND 6 V
LBI, SHDN
, FB to GND 6 V
V
out max
Vout to GND 6 V
Table 3. Thermal data
Symbol Parameter Value Unit
R
thJA
Maximum thermal resistance junction-ambient 180 ° C/W
T
J
Maximum junction temperature 150 °C
L6920DC Electrical characteristics
5/16
3 Electrical characteristics
Table 4. Electrical characteristcs
(V
IN
= 2V, FB = GND, T
J
= 25°C unless otherwise specified)
Symbol Parameter Test condition Min Typ Max Unit
V
CC
Section
V
IN
Minimum Start Up Input
Voltage
V
out
= 3.3V
0.8 V
I
q
Quiescent Current
I
l
= 0 mA, FB = 1.4V, V
out
= 3.3V
LBI = SHDN = 2V
912µA
I
l
= 0 mA, FB = 1.4V, V
out
= 5V
LBI = SHDN = 2V
11 15 µA
I
sd
Shut Down Current
V
in
= 5V, I
l
= 0 mA
0.1 1 µA
Irev Reverse battery current
V
in
= -4V
0.1 1 µA
Power section
R
on-N
Active switch ON resistance 300 mΩ
R
on-P
Synchronous switch ON
resistance
300 mΩ
Control section
V
ou
t
Output voltage
FB = OUT, I
l
= 0 mA
3.2 3.3 3.4 V
FB = GND, I
l
= 0 mA
4.955.1V
Output voltage range External divider 1.8 5.5 V
V
LBI
LBI threshold 1.23 V
V
LBO
LBO logic LOW
I
sink
= 1mA
0.2 0.4 V
I
lim
LX switch current limit 0.55 0.9 A
T
onmax
Maximum on time
V
out
= 3.3V
3.75 5 6.25 µs
T
offmin
Minimum off time
V
out
= 3.3V
0.75 1 1.25 µs
SHDN
SHDN logic LOW 0.2 V
SHDN logic HIGH 0.6 V
V
ref
Reference Voltage 1.18 1.23 1.27 V
Typical performance L6920DC
6/16
4 Typical performance
Figure 2. Efficiency vs output current @ V
OUT
= 3.3V
Figure 3. Efficiency vs output current @ V
OUT
= 5V
Figure 4. Start up voltage vs output current @ V
out
= 5V & V
out
= 3.3V
40
45
50
55
60
65
70
75
80
85
90
95
0. 1 1 10 100 100
0
Vi n=2. 4V
Vi n=1. 2V
L6920DB
Vout =3. 3V
L=10 µH
Cout =47 µF
Ci n=10µF
L6920DC
0
10
20
30
40
50
60
70
80
90
100
0. 1 1 10 100 100
0
Vi n=3.6V
Vi n=2.4V
Vin=1 . 2V
L6920DB
Vout =5V
L=10 µH
Cout=47µF
Ci n=10µF
L6920DC
VStart up vs . out put cur rent
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
0.1 1 10 100 1000
Output curr ent (mA)
VStar t up (mV)
VStart up v s. output current
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
0.1 1 10 100 1000
Out put cur r ent (mA)
VStart up (mV)
Vout =3.3V
Vout =5V
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

L6920DCTR

Mfr. #:
Buy L6920DCTR
Manufacturer:
STMicroelectronics
Description:
Switching Voltage Regulators Sync Rectifier Step Up Converter
Lifecycle:
New from this manufacturer.
Delivery:
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