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PDF SI9182DH-20-T1 Data sheet ( Hoja de datos )
| Número de pieza | SI9182DH-20-T1 | |
| Descripción | Micropower 250-mA CMOS LDO Regulator With Error Flag/Power-On-Reset | |
| Fabricantes | Vishay Siliconix | |
| Logotipo |  |
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Si9182
Vishay Siliconix
Micropower 250-mA CMOS LDO Regulator
With Error Flag/Power-On-Reset
FEATURES
D Low 105-mV Dropout at 250-mA Load
D Guaranteed 250-mA Output Current
D 500-mA Peak Output Current Capability
D Uses Low ESR Ceramic Output Capacitor
D Fast Load and Line Transient Response
D Only 100-mV(rms) Noise With Noise Bypass
Capacitor
D 1-mA Maximum Shutdown Current
D Built-in Short Circuit and Thermal Protection
D Out-Of-Regulation Error Flag (Power Good or POR)
D Fixed 1.215-V, 1.5-V, 1.8-V, 2.0-V, 2.5-V, 2.8-V,
2.85-V, 2.9-V, 3.0-V, 3.3-V, 5.0-V, or Adjustable
Output Voltage Options
D Other Output Voltages Available by Special Order
APPLICATIONS
D Cellular Phones
D Laptop and Palm Computers
D PDA, Digital Still Cameras
DESCRIPTION
The Si9182 is a 250-mA CMOS LDO (low dropout) voltage
regulator. The device features ultra low ground current and
dropout voltage to prolong battery life in portable electronics.
The Si9182 offers line/load transient response and ripple
rejection superior to that of bipolar or BiCMOS LDO regulators.
The device is designed to maintain regulation while delivering
500-mA peak current. This is useful for systems that have high
surge current upon turn-on. The Si9182 is designed to drive
the lower cost ceramic, as well as tantalum, output capacitors.
The device is guaranteed stable from maximum load current
down to 0-mA load. In addition, an external noise bypass
capacitor connected to the device’s CNOISE pin will lower the
TYPICAL APPLICATIONS CIRCUITS
LDO’s output noise for low noise applications.
The Si9182 also includes an out-of-regulation error flag. When
the output voltage is 5% below its nominal output voltage, the
error flag output goes low. If a capacitor is connected to the
device’s delay pin, the error flag output pin will generate a
delayed power-on-reset signal.
The Si9182 is available in both standard and lead (Pb)-free
MSOP-8 packages and is specified to operate over the
industrial temperature range of −40 _C to 85 _C.
VIN
2.2 mF
GND
1 CNOISE
2 DELAY
SD 8
ERROR 7
3 GND SENSE/ADJ 6
4 VIN
VOUT 5
Si9182
FIGURE 1. Fixed Output
VOUT
2.2 mF
VIN
2.2 mF
GND
1 CNOISE
2 DELAY
SD 8
ERROR 7
3 GND SENSE/ADJ 6
4 VIN
VOUT 5
Si9182
FIGURE 2. Adjustable Output
0.1 mF
VIN
2.2 mF
GND
0.1 mF
1 CNOISE
2 DELAY
SD 8
ERROR 7
3 GND SENSE/ADJ 6
4 VIN
VOUT 5
Si9182
ON/OFF
1 MW
POR
VOUT
2.2 mF
Document Number: 71150
S-41221—Rev. F, 28-Jun-04
FIGURE 3. Low Noise, Full Features Application
VOUT
2.2 mF
www.vishay.com
1
1 page  
Si9182
Vishay Siliconix
ORDERING INFORMATION
Standard
Part Number
Lead (Pb)-Free
Temperature
Part Number Marking Voltage
Range
Si9182DH-12-T1
Si9182DH-12-T1—E3
Si9182DH-15-T1
Si9182DH-15-T1—E3
Si9182DH-18-T1
Si9182DH-18-T1—E3
Si9182DH-20-T1
Si9182DH-20-T1—E3
Si9182DH-25-T1
Si9182DH-25-T1—E3
Si9182DH-28-T1
Si9182DH-28-T1—E3
Si9182DH-285-T1 Si9182DH-285-T1—E3
Si9182DH-29-T1
Si9182DH-29-T1—E3
Si9182DH-30-T1
Si9182DH-30-T1—E3
Si9182DH-33-T1
Si9182DH-33-T1—E3
Si9182DH-50-T1
Si9182DH-50-T1—E3
Si9182DH-AD-T1 Si9182DH-AD-T1—E3
* Additional voltage options are available.
8212
8215
8218
8220
8225
8228
822A
8229
8230
8233
8250
82AD
1.215 V
1.5 V
1.8 V
2.0 V
2.5 V
2.8 V
2.85 V
2.9 V
3.0 V
3.3 V
5.0 V
Adjustable
−40 to 85_C
Package
MSOP-8
Eval Kit
Si9182DB
Temperature Range
−40 to 85_C
Board Type
Surface Mount
TYPICAL CHARACTERISTICS (INTERNALLY REGULATED, 25_C UNLESS NOTED)
Dropout Voltage vs. Load Current
250
VOUT = 3.3 V
200
150
Dropout Characteristic
3.5
3.0
RLOAD = 16.5 W
2.5
2.0
100 1.5
1.0
50
0.5
0
0
180
100 200 300 400
ILOAD (mA)
Dropout Voltage vs. Temperature
500
150
VOUT = 3.3 V
120
90
IOUT = 250 mA
IOUT = 200 mA
60
30
0
−50 −25
0 25 50 75 100
Junction Temperature (_C)
IOUT = 10 mA
IOUT = 0 mA
125 150
Document Number: 71150
S-41221—Rev. F, 28-Jun-04
0.0
0
225
200
175
150
125
100
75
50
25
0
1.0
12345
VIN (V)
Dropout Voltage vs. VOUT
IOUT = 250 mA
IOUT = 200 mA
IOUT = 10 mA
1.5 2.0 2.5 3.0 3.5 4.0 4.5
VOUT
6
5.0
www.vishay.com
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| PDF Descargar | [ Datasheet SI9182DH-20-T1.PDF ] | |
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