PM6685TR(2011) Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

PM6685TR
(Rev.:2011)

Dual step-down main supply controller with auxilary voltages for notebook system power

STMicroelectronics 

Electrical characteristics

PM6685

Table 5. Electrical characteristics (continued)

Symbol

Parameter

Test condition

ICSENSE

Input bias current limit

Comparator offset

Zero crossing

comparator offset

Fixed negative current

limit

threshold

VCSENSE-VPGND

VPGND-VPHASE

VPGND-VPHASE

On time pulse width

Ton

ON-time duration

FSEL to GND

FSEL to VREF

FSEL to LDO5

OUT5=5V

OUT3=3.3V

OUT5=5V

OUT3=3.3V

OUT5=5V

OUT3=3.3V

OFF time

TOFFMIN Minimum off time

Voltage reference

VREF

Voltage accuracy

Load regulation

Undervoltage lockout

fault threshold

4.2V<VLDO5< 5.5V

-100μA< IREF < 100μA

Falling edge of REF

Integrator

COMP

Over voltage clamp

Under voltage clamp

Normal mode

Pulse skip mode

Line regulation

Both SMPS, 6V<Vin<28V(1)

LDO5 linear regulator

VLDO5

ILDO5

UVLO

LDO5 linear output

voltage

6V<VIN<28V, 0<ILDO5<50mA

LDO5 line regulation

6V< VIN < 28V, ILDO5 =50mA ,

LDO3_SEL tied to GND

LDO5 current limit

VLDO5 > UVLO, ILDO3=0A

VOUT5>5.1V, VOUT3>3.34V

Under voltage lockout of

LDO5

Min Typ Max Unit

90

100 110 μA

-6

6

mV

-1

11

mV

-120

mV

1685 1985 2285

780 920 1060

1115 1315 1515

ns

585 690 795

830 980 1130

470 555 640

400 500 ns

1.217 1.230 1.243 V

-4

4

mV

0.95

V

250

60

mV

-150

0.004

%/V

4.9

5.0

5.1

V

0.004 %/V

270 350 400 mA

3.94

4

4.13

V

10/48

Doc ID 11674 Rev 8

Share Link: