参数资料
型号: L6920DB
厂商: STMICROELECTRONICS
元件分类: 稳压器
英文描述: 0.9 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO8
封装: LEAD FREE, MSOP-8
文件页数: 12/16页
文件大小: 402K
代理商: L6920DB
L6920DB
Electrical characteristics
5/16
3
Electrical characteristics
Table 4. Electrical characteristcs
(VIN = 2V, FB = GND, TJ = 25°C unless otherwise specified)
Symbol
Parameter
Test condition
Min
Typ
Max
Unit
VCC Section
VIN
Minimum Start Up Input
Voltage
Vout = 3.3V
0.8
V
Iq
Quiescent Current
Il = 0 mA, FB = 1.4V, Vout = 3.3V
LBI = SHDN = 2V
912
A
Il = 0 mA, FB = 1.4V, Vout = 5V
LBI = SHDN = 2V
11
15
A
Isd
Shut Down Current
Vin = 5V, Il = 0 mA
0.1
1
A
Irev
Reverse battery current
Vin = -4V
0.1
1
A
Power section
Ron-N
Active switch ON resistance
300
m
Ron-P
Synchronous switch ON
resistance
300
m
Control section
Vout
Output voltage
FB = OUT, Il = 0 mA
3.2
3.3
3.4
V
FB = GND, Il = 0 mA
4.955.1
V
Output voltage range
External divider
1.8
5.2
V
VLBI
LBI threshold
1.23
V
VLBO
LBO
logic LOW
Isink = 1mA
0.2
0.4
V
Ilim
LX switch current limit
0.7
0.8
0.9
A
Tonmax
Maximum on time
Vout = 3.3V
3.75
5
6.25
s
Toffmin
Minimum off time
Vout = 3.3V
0.75
1
1.25
s
SHDN
logic LOW
0.2
V
SHDN
logic HIGH
0.6
V
Vref
Reference Voltage
1.18
1.23
1.27
V
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