S-1740 Datasheet PDF - SII Semiconductor

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S-1740
SII Semiconductor

Part Number S-1740
Description 100 mA CMOS VOLTAGE REGULATOR
Page 30 Pages


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S-1740/1741 Series
www.sii-ic.com
© SII Semiconductor Corporation, 2016
POWER MONITORING OUTPUT,
5.5 V INPUT, 100 mA CMOS VOLTAGE REGULATOR
WITH 0.5 μA SUPER LOW CURRENT CONSUMPTION
Rev.1.1_00
The S-1740/1741 Series, developed using CMOS technology, is a positive voltage regulator with a power monitoring output,
which features super low current consumption and low dropout voltage.
The regulator block has low current consumption of 0.35 μA typ. and high-accuracy output voltage of ±1.0%.
The function of the power monitoring output is prepared in the S-1740/1741 Series. The power monitoring output is a
function that divides the input voltage (VIN) of the regulator into VIN/2 or VIN/3 and outputs the voltage. For example, this
function makes it possible that the IC connects to a low voltage microcontroller A/D converter directly and the microcontroller
monitors a battery voltage.
Features
Regulator block
Output voltage:
Input voltage:
Output voltage accuracy:
Dropout voltage:
Current consumption during operation:
Output current:
Input capacitor:
Output capacitor:
Built-in overcurrent protection circuit:
VOUT = 1.0 V to 3.5 V, selectable in 0.05 V step
VIN = 1.5 V to 5.5 V
±1.0% (1.0 V to 1.45 V output product: ±15 mV) (Ta = +25°C)
20 mV typ. (2.5 V output product, at IOUT = 10 mA) (Ta = +25°C)
ISS1 = 0.35 μA typ. (Ta = +25°C)
Possible to output 100 mA ( at VIN VOUT(S) + 1.0 V)*1
A ceramic capacitor can be used. (1.0 μF or more)
A ceramic capacitor can be used. (1.0 μF to 100 μF)
Limits overcurrent of output transistor.
Power monitor block
Output voltage:
Current consumption during operation:
Output capacitor:
Built-in enable circuit:
VPMOUT = VIN/2 (S-1740 Series)
VPMOUT = VIN/3 (S-1741 Series)
ISS1P = 0.15 μA typ. (Ta = +25°C)
A ceramic capacitor can be used. (100 nF to 220 nF)
Ensures long battery life.
Overall
Operation temperature range:
Lead-free (Sn 100%), halogen-free
Ta = 40°C to +85°C
*1. Please make sure that the loss of the IC will not exceed the power dissipation when the output current is large.
Applications
Constant-voltage power supply and battery voltage monitoring support for battery-powered device
Constant-voltage power supply for portable communication device, digital camera, and digital audio player
Constant-voltage power supply for home electric appliance
Packages
SOT-23-5
HSNT-6(1212)
HSNT-4(1010)
1

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