PM6680 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

PM6680

No Rsense dual step-down controller with adjustable voltages for notebook system power

STMicroelectronics 

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PM6680

Electrical characteristics

Table 5.

Electrical characteristics (continued)

VIN = 12 V, TA = 0 °C to 85 °C, unless otherwise specified (1)

Symbol

Parameter

Test condition

Min Typ Max Unit

On time pulse width

Ton On time duration

FSEL to

GND

FSEL to

VREF

FSEL to

LDO5

OUT1=1.5 V 550 650 750

OUT2=1.05 V 230 270 315

OUT1=1.5 V 375 445 515

ns

OUT2=1.05 V 175 210 245

OUT1=1.5 V 285 340 395

OUT2=1.05 V 125 150 175

OFF time

TOFFMIN Minimum off time

Voltage reference

350 500 ns

VREF

Voltage accuracy

Load regulation

Undervoltage lockout fault

threshold

4 V < VLDO5 < 5.5 V

-100 µA< IREF < 100 µA

Falling edge of REF

1.224 1.236 1.249 V

-4

4

mV

0.95 mV

Integrator

FB

Voltage accuracy

FB

Input bias current

COMP

Over voltage clamp

Under voltage clamp

Normal mode

Pulse skip mode

-909 900 909 mV

0.1

µA

250

60

mV

-150

Line regulation

Both SMPS, 6 V<Vin<28 V(2)

0.004

%/V

LDO5 linear regulator

VLDO5

ILDO5

ULVO

LDO5 linear output voltage

LDO5 line regulation

LDO5 Current limit

Under Voltage Lockout of LDO5

6 V<VIN<28 V ,

0 < ILDO5 < 50 mA

6 V< VIN < 28 V,

ILDO5 = 20 mA ,

VLDO5 > UVLO

4.9

5.0

5.1

V

0.004 %/V

270 330 400 mA

3.94

4

4.13

V

13/49

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