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L6920D 数据表(PDF) 3 Page - STMicroelectronics

部件名 L6920D
功能描述  1V HIGH EFFICIENCY SYNCRONOUS STEP UP CONVERTER
PDF  13 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L6920D 数据表(HTML) 3 Page - STMicroelectronics

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L6920
Table 4. Electrical Characteristcs
(Vin = 2V, FB = GND, Tamb = -40°C to 85°C and Tj < 125°C unless otherwise specified)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
VCC SECTION
Vin
Minimum operating Input Voltage
0.6
V
Vin
Minimum Start Up Input Voltage
1
V
Iq
Quiescent Current
Il =0 mA, FB = 1.4V, Vout = 3.3V
LBI = SHDN = 2V, Tj = Tamb
915
µA
Il =0 mA, FB = 1.4V, Vout = 5V
LBI = SHDN = 2V, Tj = Tamb
11
18
µA
Isd
Shut Down Current
Vin = 5V, Il =0 mA
0.1
1
µA
Irev
Reverse battery current
Vin = -4V, Tj = Tamb
0.1
2
µA
POWER SECTION
Ron-N
Active switch ON resistance
120
250
m
Ω
Ron-P
Synchronous switch ON
resistance
120
250
m
Ω
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
2
5.2
V
VLBI
LBI threshold
1.18
1.23
1.27
V
0°C < Tj < 70°C
1.205
1.23
1.255
V
VLBO
LBO logic LOW
Isink < 250
µA
0.2
0.4
V
Ilim
LX switch current limit
0.8
1
1.2
A
Tonmax
Maximum on time
Vout = 2V to 5.3V
3.75
5
6.25
µs
Toffmin
Minimum off time
Vout = 2V to 5.3V
0.75
1
1.25
µs
SHDN
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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