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PM6680 Datasheet(PDF) 13 Page - STMicroelectronics

Part # PM6680
Description  No Rsense dual step-down controller with adjustable voltages for notebook system power
PDF  49 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

PM6680 Datasheet(HTML) 13 Page - STMicroelectronics

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PM6680
Electrical characteristics
13/49
Symbol
Parameter
Test condition
Min
Typ
Max
Unit
On time pulse width
Ton
On time duration
FSEL to
GND
OUT1=1.5V
550
650
750
ns
OUT2=1.05V
230
270
315
FSEL to
VREF
OUT1=1.5V
375
445
515
OUT2=1.05V
175
210
245
FSEL to
LDO5
OUT1=1.5V
285
340
395
OUT2=1.05V
125
150
175
OFF time
TOFFMIN
Minimum off time
350
500
ns
Voltage reference
VREF
Voltage accuracy
4V < VLDO5 < 5.5V
1.224
1.236
1.249
V
Load regulation
-100µA< IREF < 100µA
-4
4
mV
Undervoltage lockout fault
threshold
Falling edge of REF
0.95
mV
Integrator
FB
Voltage accuracy
-909
900
909
mV
FB
Input bias current
0.1
µA
COMP
Over voltage clamp
Normal mode
250
mV
Pulse skip mode
60
Under voltage clamp
-150
Line regulation
Both SMPS, 6V<Vin<28V (1)
0.004
%/V
LDO5 linear regulator
VLDO5
LDO5 linear output voltage
6V<VIN<28V,
0 < ILDO5 < 50mA
4.9
5.0
5.1
V
LDO5 line regulation
6V< VIN < 28V,
ILDO5 = 20mA ,
0.004
%/V
ILDO5
LDO5 Current limit
VLDO5 > UVLO
270
330
400
mA
ULVO
Under Voltage Lockout of LDO5
3.94
4
4.13
V
Table 5.
Electrical characteristics (continued)



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