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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)
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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.1.1_00
Block Diagram
1. S-1740/1741 Series A / C type (SOT-23-5, HSNT-6(1212))
VIN
SW
*1
Overcurrent
protection circuit
+
VOUT
PMOUT
PMEN
VSS
Enable circuit
+
Reference
voltage circuit
Product Type
S-1740 Series A type
S-1740 Series C type
S-1741 Series A type
S-1741 Series C type
*1. Parasitic diode
Output Voltage (VPMOUT)
VIN/2
VIN/3
PMEN Pin Logic
Active "H"
Active "L"
Active "H"
Active "L"
Figure 1
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POWER MONITORING OUTPUT, 5.5 V INPUT, 100 mA CMOS VOLTAGE REGULATOR WITH 0.5 μA SUPER LOW CURRENT CONSUMPTION
Rev.1.1_00
S-1740/1741 Series
2. S-1740/1741 Series G type (HSNT-4(1010))
*1
VIN
Overcurrent
protection circuit
+
VOUT
PMOUT
VSS
+
Reference
voltage circuit
Product Type
S-1740 Series G type
S-1741 Series G type
*1. Parasitic diode
Output Voltage (VPMOUT)
VIN/2
VIN/3
PMEN Pin Logic
Without PMEN pin
Figure 2
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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.1.1_00
Product Name Structure
Users can select power monitor block output voltage, product type, regulator block output voltage, and package type
for the S-1740/1741 Series. Refer to "1. Product name" regarding the contents of product name, "2. Function list
of product type" regarding the product type, "3. Packages" regarding the package drawings and "4. Product
name list" for details of product names.
1. Product name
S-174x x xx - xxxx U 4
Environmental code
U: Lead-free (Sn 100%), halogen-free
Package abbreviation and IC packing specifications*1
M5T1: SOT-23-5, Tape
A6T2: HSNT-6(1212), Tape
A4T2: HSNT-4(1010), Tape*2
Regulator block output voltage*3
10 to 35
(e.g., when the output voltage is 1.0 V, it is expressed as 10.)
Product type*4
A, C, G
Power monitor block output voltage*4
0: VIN/2
1: VIN/3
*1. Refer to the tape drawing.
*2. Only S-1740/1741 Series G type
*2. Contact our sales office when the product which has 0.05 V step is necessary.
*3. Refer to "2. Function list of product type" and "2. 2 PMEN pin" in "2. Power monitor block" in
"Operation".
2. Function list of product type
Product Type
S-1740 Series A type
S-1740 Series C type
S-1740 Series G type
S-1741 Series A type
S-1741 Series C type
S-1741 Series G type
Table 1
Output Voltage (VPMOUT)
VIN/2
VIN/3
PMEN Pin Logic
Active "H"
Active "L"
Without PMEN pin
Active "H"
Active "L"
Without PMEN pin
Package
HSNT-6(1212),
SOT-23-5
HSNT-4(1010)
HSNT-6(1212),
SOT-23-5
HSNT-4(1010)
3. Packages
Package Name
SOT-23-5
HSNT-6(1212)
HSNT-4(1010)
Table 2
Dimension
MP005-A-P-SD
PM006-A-P-SD
PL004-A-P-SD
Package Drawing Codes
Tape
Reel
MP005-A-C-SD
MP005-A-R-SD
PM006-A-C-SD
PM006-A-R-SD
PL004-A-C-SD
PL004-A-R-SD
Land
PM006-A-L-SD
PL004-A-L-SD
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POWER MONITORING OUTPUT, 5.5 V INPUT, 100 mA CMOS VOLTAGE REGULATOR WITH 0.5 μA SUPER LOW CURRENT CONSUMPTION
Rev.1.1_00
S-1740/1741 Series
4. Product name list
4. 1 S-1740 Series
4. 1. 1 A type
PMEN pin logic:
Active "H"
Output Voltage (VPMOUT):
VIN/2
Table 3
Output Voltage (VOUT)
1.0 V ± 15 mV
SOT-23-5
S-1740A10-M5T1U4
HSNT-6(1212)
S-1740A10-A6T2U4
1.7 V ± 1.0%
S-1740A17-M5T1U4
S-1740A17-A6T2U4
1.8 V ± 1.0%
S-1740A18-M5T1U4
S-1740A18-A6T2U4
2.0 V ± 1.0%
S-1740A20-M5T1U4
S-1740A20-A6T2U4
2.1 V ± 1.0%
S-1740A21-M5T1U4
S-1740A21-A6T2U4
3.0 V ± 1.0%
S-1740A30-M5T1U4
S-1740A30-A6T2U4
Remark Please contact our sales office for products with specifications other than the above.
4. 1. 2 C type
PMEN pin logic:
Active "L"
Output Voltage (VPMOUT):
VIN/2
Table 4
Output Voltage (VOUT)
1.0 V ± 15 mV
SOT-23-5
S-1740C10-M5T1U4
HSNT-6(1212)
S-1740C10-A6T2U4
1.7 V ± 1.0%
S-1740C17-M5T1U4
S-1740C17-A6T2U4
1.8 V ± 1.0%
S-1740C18-M5T1U4
S-1740C18-A6T2U4
2.0 V ± 1.0%
S-1740C20-M5T1U4
S-1740C20-A6T2U4
2.1 V ± 1.0%
S-1740C21-M5T1U4
S-1740C21-A6T2U4
3.0 V ± 1.0%
S-1740C30-M5T1U4
S-1740C30-A6T2U4
Remark Please contact our sales office for products with specifications other than the above.
4. 1. 3 G type
PMEN pin logic:
Without PMEN pin
Output Voltage (VPMOUT):
VIN/2
Table 5
Output Voltage (VOUT)
1.0 V ± 15 mV
HSNT-4(1010)
S-1740G10-A4T2U4
1.7 V ± 1.0%
S-1740G17-A4T2U4
1.8 V ± 1.0%
S-1740G18-A4T2U4
2.0 V ± 1.0%
S-1740G20-A4T2U4
2.1 V ± 1.0%
S-1740G21-A4T2U4
3.0 V ± 1.0%
S-1740G30-A4T2U4
Remark Please contact our sales office for products with specifications other than the above.
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