SM8172A

SEIKO NPC CORPORATION —4

11. ELECTRICAL CHARACTERISTICS

Note. The specifications of “ELECTRICAL CHARACTERISTICS” are shown by using “TYPICAL APPLI-

CATION CIRCUIT” on page 13.

11-1. Common Blocks

VIN1 = VIN2 = 5.0V, GND = PGND = 0V, Ta = 25

°C unless otherwise noted.

11-2. Series Regulator

VIN1 = VIN2 = 5.0V, GND = PGND = 0V, Ta = 25

°C unless otherwise noted.

Parameter

Pin

Symbol

Condition

Rating

Unit

min

typ

max

Standby current

VIN1, 2

Standby mode (ENDCO = ENLDO = L),

No load on inputs/outputs

–

0.01

1

µA

HIGH-level input voltage

ENDCO,

ENLDO

1.8

–

–

V

LOW-level input voltage

–

–

0.6

V

HIGH-level input current

–

5.0

10

µA

RESETN output current

RESETN

20

–

–

mA

Reset circuit operating

voltage

VIN2

When VIN falls

3.5

3.7

3.9

V

When VIN rises

3.7

3.9

4.1

V

Reset circuit return delay

time

RESETN

When VIN rises

–

65

–

ms

Under voltage lockout

VIN2

When VIN falls

2.7

3.0

3.3

V

When VIN rises

2.9

3.2

3.5

V

TSD operating temperature

–

–

170

–

°C

TSD hysteresis

–

–20–

°C

Parameter

Pin

Symbol

Condition

Rating

Unit

min

typ

max

Current consumption

VIN1, 2

No load

–

0.1

0.25

mA

Soft start time

LDOUT

0.5

1

2

ms

Output voltage

LDOUT

3.23

3.3

3.37

V

LDOUT

VIN2 = 4.5V, LDOUT = 3.3V

450

–

–

mA

Input stability

LDOUT

4.5V

–

0.1

0.35

%/V

Load stability

LDOUT

VIN2 = 5.0V, 1mA

–

40

–

mV

Overcurrent protection

circuit operating current

LDOUT

–

700

–

mA