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SI9182DH-30-T1 Fiches technique(PDF) 1 Page - Vishay Siliconix

No de pièce SI9182DH-30-T1
Description  Micropower 250-mA CMOS LDO Regulator With Error Flag/Power-On-Reset
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Fabricant  VISHAY [Vishay Siliconix]
Site Internet  http://www.vishay.com
Logo VISHAY - Vishay Siliconix

SI9182DH-30-T1 Fiches technique(HTML) 1 Page - Vishay Siliconix

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Si9182
Vishay Siliconix
Document Number: 71150
S-41221—Rev. F, 28-Jun-04
www.vishay.com
1
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
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.
TYPICAL APPLICATIONS CIRCUITS
FIGURE 1.
Fixed Output
FIGURE 2.
Adjustable Output
FIGURE 3.
Low Noise, Full Features Application
CNOISE
SD
18
DELAY
ERROR
27
GND
SENSE/ADJ
36
VIN
VOUT
45
GND
VIN
2.2 mF
2.2 mF
VOUT
Si9182
CNOISE
18
DELAY
ERROR
27
GND SENSE/ADJ
36
VIN
VOUT
45
GND
VIN
2.2 mF
2.2 mF
VOUT
Si9182
CNOISE
18
DELAY
ERROR
27
GND SENSE/ADJ
36
VIN
VOUT
45
GND
VIN
2.2 mF
2.2 mF
VOUT
Si9182
POR
ON/OFF
0.1 mF
0.1 mF
1 MW
SD
SD


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