S1740 datasheet(10/47 Pages) SII

10 / 47 page

POWER MONITORING OUTPUT, 5.5 V INPUT, 100 mA CMOS VOLTAGE REGULATOR WITH 0.5

μA SUPER LOW CURRENT CONSUMPTION

S-1740/1741 Series

Rev.1.2_00

2. Power monitor block

Table 15

(Ta =

+25°C unless otherwise specified)

Item

Symbol

Condition

Min.

Typ.

Max.

Unit

Test

Circuit

Output voltage

VPMOUT(S)

VIN = 3.6 V,

−10 μA ≤ IPMOUT ≤ 10 μA

S-1740 Series

−

VIN/2

−

S-1741 Series

−

VIN/3

−

Load current

IPMOUT

VIN = 3.6 V

−10

−

μA

−

Output offset voltage

VPOF

VIN = 3.6 V,

−10 μA ≤ IPMOUT ≤ 10 μA

−30

−

Output impedance

RPS

VIN = 3.6 V,

−10 μA ≤ IPMOUT ≤ 10 μA

−

1000

Power-up time

tPU

S-1740/1741 Series A / C type,

VIN = 3.6 V, CPM = 220 nF, no load

−

Current consumption

during operation

ISS1P

VIN = 3.6 V, when power monitoring output is

enabled, no load

−

0.15

0.23

μA

Input voltage

VIN

−

1.5

−

5.5

−

PMEN pin input voltage "H"

VPSH

S-1740/1741

Series A / C type

VIN = 3.6 V, determined by

VPMOUT output level

1.0

−

PMEN pin input voltage "L"

VPSL

VIN = 3.6 V, determined by

VPMOUT output level

−

0.25

PMEN pin input current "H"

IPSH

VIN = 3.6 V, VPMEN = VIN

−0.1

−

0.1

μA

PMEN pin input current "L"

IPSL

VIN = 3.6 V, VPMEN = 0 V

−0.1

−

0.1

μA

"L" output Nch ON resistance

RPLOW

S-1740/1741 Series A / C type,

VIN = 3.6 V, when power monitoring output is

disabled, VPMOUT = 0.1 V

−

2.8

−

*1. VPMOUT(S): Set output voltage

VPMOUT(S)

+ VPOF: Actual output voltage

*2. Increased current value from the current consumption during operation (ISS1) of the regulator block when the power

monitoring output is enabled.

S1740 Datasheet(PDF) 10 Page - Seiko Instruments Inc

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