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L5985 Datasheet(PDF) 6 Page - STMicroelectronics

Part # L5985
Description  2 A step-down switching regulator
PDF  37 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L5985 Datasheet(HTML) 6 Page - STMicroelectronics

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L5985
Electrical characteristics
6/37
Error amplifier
VCH
High level output voltage
VFB < 0.6 V
3
V
VCL
Low level output voltage
VFB > 0.6 V
0.1
IFB
Bias source current
VFB = 0 V to 0.8 V
1
μA
IO SOURCE Source COMP pin
VFB = 0.5 V, VCOMP = 1 V
17
mA
IO SINK
Sink COMP pin
VFB = 0.7 V,
VCOMP = 1 V
25
mA
GV
Open loop voltage gain
(2)
100
dB
Synchronization function
High input voltage
2
3.3
V
Low input voltage
1
Slave sink current
VSYNCH = 2.9 V
0.7
0.9
mA
Master output amplitude
ISOURCE = 200 μA3.0
V
Output pulse width
SYNCH floating
110
ns
Input pulse width
70
Protection
IFBDISC
FB disconnection source
current
1
μA
TSHDN
Thermal shutdown
150
°C
Hystereris
30
1.
Specification refered to TJ from -40 to +125 °C. Specification in the -40 to +125 °C temperature range are
assured by design, characterization and statistical correlation.
2.
Guaranteed by design.
Table 4.
Electrical characteristics
Symbol
Parameter
Test condition
Values
Unit
Min
Typ
Max



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