S-1740 Datasheet, PDF (1/47 Pages) ABLIC Inc. – 5.5 V INPUT, 100 mA VOLTAGE REGULATOR WITH SUPPLY VOLTAGE DIVIDED OUTPUT

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 (V_IN) of the regulator into V_IN/2 or V_IN/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:
V_OUT = 1.0 V to 3.5 V, selectable in 0.05 V step
V_IN = 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 I_OUT = 10 mA) (Ta = +25°C)
I_SS1 = 0.35 μA typ. (Ta = +25°C)
Possible to output 100 mA ( at V_IN ≥ V_OUT(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:
V_PMOUT = V_IN/2 (S-1740 Series)
V_PMOUT = V_IN/3 (S-1741 Series)
I_SS1P = 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