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PDF S-1142 Data sheet ( Hoja de datos )
| Número de pieza | S-1142 | |
| Descripción | HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR | |
| Fabricantes | Seiko Instruments | |
| Logotipo |  |
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Rev.1.0_03
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION
LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1142 Series
The S-1142 Series, developed based on high-withstand voltage CMOS
process, is a positive voltage regulator with a high-withstand voltage, low
current consumption, and high output voltage accuracy. The S-1142
Series operates at a high maximum operating voltage of 50 V and a low
current consumption of 4.0 µA (typ.). In addition to a built-in low
on-resistance transistor which provides a very small dropout voltage and
a large output current, this voltage regulator also has a built-in power-off
circuit.
An overcurrent protector prevents the load current from exceeding the
capacitance of the output transistor. A built-in thermal shutdown circuit
prevents damage caused by heat.
A high heat radiation HSOP-6 package enables high-density mounting.
Features
• Output voltage :
2.0 V to 12.0 V, selectable in 0.1 V step
• Low equivalent series resistance capacitor : Ceramic capacitor of 0.1 µF or more can be used as the I/O capacitor.
• Input voltage :
3.0 V to 50 V
• High-accuracy output voltage :
±1.0% (at Tj = +25°C), ±3.0% (Tj = −40°C to +105°C)
• Low current consumption :
During operation: 4.0 µA typ., 9.0 µA max. (Tj = −40°C to +105°C)
• Output current :
During shutdown: 0.1 µA typ., 1.0 µA max. (Tj = −40°C to +105°C)
200 mA (at VIN ≥ VOUT(S) + 2.0 V)*1
• Built-in overcurrent protector :
limits overcurrent of output transistor
• Operation temperature range :
−40°C to +105°C (S-1142xxxH only)
• Built-in thermal shutdown circuit :
prevents damage caused by heat
• Built-in power on/off circuit :
longer battery life
• Small package :
HSOP-6
• Lead-free product
www.Data*S1h.eAett4teUn.ctioomn should be paid to the power dissipation of the package when the output current is large.
Applications
• Constant-voltage power supply for electrical applications for vehicle interiors (S-1142xxxH only)
• Constant-voltage power supplies for home electric appliances
Package
Package Name
HSOP-6
Package
FH006-A
Drawing Code
Tape
Reel
FH006-A
FH006-A
Land
FH006-A
Caution Before using this product in medical equipment or automobile equipment including car audio, keyless
entry and engine control unit, contact to SII is indispensable.
Seiko Instruments Inc.
1
1 page  
Rev.1.0_03
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1142 Series
Pin Configuration
HSOP-6
Top view
65 4
12 3
Figure 2
Table 2
Pin No.
Symbol
Description
1
VOUT
Output voltage pin
2
VSS
GND pin
3 ON/OFF Power-off pin
4
NC*1
No connection
5
VSS
GND pin
6 VIN Input voltage pin
*1. The NC pin is electrically open.
The NC pin can be connected to VIN or VSS.
www.DataSheet4U.com
Seiko Instruments Inc.
5
5 Page 
Rev.1.0_03
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1142 Series
*1. VOUT(S) : Specified output voltage
VOUT(E) : Actual output voltage
The output voltage when fixing IOUT (= 30 mA) and inputting 13.5 V
*2. The output current at which the output voltage becomes 95% of VOUT(E) after gradually increasing the output current.
*3. Vdrop = VIN1 − (VOUT3 × 0.98)
VOUT3 is the output voltage when VIN = VOUT(S) + 2.0 V, and IOUT = 100 mA or 200 mA.
VIN1 is the input voltage at which the output voltage becomes 98% of VOUT3 after gradually decreasing the input
voltage.
*4. The output current can be at least this value.
Due to limitation of the package power dissipation, this value may not be satisfied. Attention should be paid to the
power dissipation of the package when the output current is large.
This specification is guaranteed by design.
www.DataSheet4U.com
Seiko Instruments Inc.
11
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| Páginas | Total 35 Páginas | |
| PDF Descargar | [ Datasheet S-1142.PDF ] | |
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