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PM6685TR Datasheet(PDF) 10 Page - STMicroelectronics

Part # PM6685TR
Description  Dual step-down main supply controller with auxilary voltages for notebook system power
PDF  52 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

PM6685TR Datasheet(HTML) 10 Page - STMicroelectronics

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Electrical characteristics
PM6685
10/52
4
Electrical characteristics
VIN = 12V, TA = 0°C to 85°C, unless otherwise specified
Table 5.
Electrical characteristics
Symbol
Parameter
Test condition
Min
Typ
Max
Unit
Supply section
VIN
Input voltage range
Vout=Vref, LDO5 in regulation
FSEL to GND
5.5
28
V
Vcc
IC supply voltage
4.5
5.5
V
VV5SW
Turn-on voltage threshold
4.8
4.9
V
Turn-off voltage threshold
4.6
4.75
V
Hysteresis
20
50
mV
VV5SW
Maximum operating range
5.5
V
Rdson
LDO5 internal bootstrap
switch resistance
V5SW > 4.9V
1.8
3
Ω
Rdson
LDO3 internal bootstrap
switch resistance
VOUT3 = 3.3V
1.8
3
Ω
OUT3, OUT5 discharge mode
on-resistance
16
25
Ω
OUT3, OUT5_ discharge mode
synchronous rectifier turn-on
level
0.2
0.35
0.5
V
Pin
Operating power consumption
VOUT5>5.1V,VOUT3>3.34V
V5SW to 5V
LDO5, LDO3 no load
4mW
Ish
VIN shutdown current
SHDN connected to GND,
14
18
µA
Isb
VIN standby current
ENx to GND, V5SW to GND,
LDO3_SEL to 5V
270
380
µA
Shutdown section
VSHDN
Device on threshold
1.2
1.5
1.7
V
Device off threshold
0.8
0.85
0.9
V
Soft start section
Soft start ramp time
2
3.5
ms



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