PM6670 datasheet(9/53 Pages) STMICROELECTRONICS

9 / 53 page

PM6670

Electrical characteristics

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Electrical characteristics

TA = 0°C to 85°C , VCC = AVCC = +5V and LDOIN connected to VDDQ output if not

otherwise specified.

Table 6. Electrical characteristics

Symbol

Parameter

Test condition

Values

Unit

Min

Typ

Max

Supply section

IIN

Operating current

S3, S5, MODE and DDRSEL

connected to AVCC, No Load on

VTT and VTTREF Outputs.

VCC connected to AVCC

0.8

ISTR

Operating current in STR

S5, MODE and DDRSEL connected

to AVCC, S3 tied to SGND, No Load

on VTTREF.

VCC connected to AVCC

0.6

ISH

Operating current in

shutdown

S3 and S5 tied to SGND.

Discharge Mode active.

VCC connected to AVCC

110

µA

UVLO

AVCC under voltage lockout

upper threshold

4.1

4.25

4.4

AVCC under voltage lockout

lower threshold

3.9

4.0

4.1

UVLO hysteresis

ON-time (SMPS)

tON

On-time duration

MODE and

DDRSEL

high,

VVSNS = 2V

VOSC = 300mV

650

750

850

VOSC = 500mV

390

450

510

OFF-time (SMPS)

tOFFMIN Minimum Off time

300

350

Voltage reference

Voltage accuracy

4.5V < VIN < 25V

1.224

1.237

1.249

Load regulation

-50

µA< I

VREF < 50µA

-4

Undervoltage lockout fault

threshold

800

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