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Teilenummer | S-1142 |
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Beschreibung | HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR | |
Hersteller | Seiko Instruments | |
Logo | ||
Gesamt 35 Seiten 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
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1142 Series
Rev.1.0_03
Absolute Maximum Ratings
Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical
damage. These values must therefore not be exceeded under any conditions.
Table 3
(Ta = 25°C unless otherwise specified)
Parameter
Symbol
Absolute Maximum Rating
Unit
Input voltage
VIN
VON/OFF
VSS − 0.3 to VSS + 60
VSS − 0.3 to VIN + 0.3
V
V
Output voltage
Power dissipation
VOUT
PD
VSS − 0.3 to VIN + 0.3
1900*1
V
mW
Junction temperature
Tj
−40 to +125
°C
Operating ambient S-1142xxxI
temperature
S-1142xxxH
Topr
−40 to +85
−40 to +105
°C
°C
Storage temperature
Tstg
−40 to +125
°C
*1. When mounted on board
[Mounted board]
(1) Board size :
50 mm × 50 mm × t1.6 mm
(2) Board material : Glass epoxy resin (two layers)
(3) Wiring ratio : 50%
(4) Test conditions : When mounted on board (wind speed : 0 m/s)
(5) Land pattern : Refer to the recommended land pattern (drawing code : FH006-A)
2400
2000
1600
1200
www.DataSheet4U.com
800
S-1142xxxI
400
S-1142xxxH
0
0 50 100 150
Ambient temperature (Ta) [°C]
Figure 3 Power Dissipation of Package (When Mounted on Board)
Condition
HSOP-6 (When mounted on board)
Table 4
Power Dissipation
1900 mW
Thermal Resistance Value (θj − a)
53°C/W
6 Seiko Instruments Inc.
6 Page HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1142 Series
Test Circuit
1.
VIN VOUT
ON/OFF
VSS
Set to power ON
+
A
+
V
Figure 5
2. +
A VIN
VOUT
ON/OFF
VSS
Set to VIN or GND
Figure 6
3.
www.Data4S.heet4U.com
VIN VOUT
ON/OFF
VSS
Set to power ON
Figure 7
+
A
+
V
VIN VOUT
+
A ON/OFF
VSS
+
V
RL
Rev.1.0_03
Figure 8
5.
VIN VOUT
ON/OFF
VSS
+
V RL
Set to power ON
Figure 9
12 Seiko Instruments Inc.
12 Page | ||
Seiten | Gesamt 35 Seiten | |
PDF Download | [ S-1142 Schematic.PDF ] |
Teilenummer | Beschreibung | Hersteller |
S-1142 | HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR | Seiko Instruments |
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