SI91822DH-AD-T1-E3 Vishay, SI91822DH-AD-T1-E3 Datasheet

IC, ADJ LDO REG 1.215V TO 5V 0.3A MSOP-8

SI91822DH-AD-T1-E3

Manufacturer Part Number
SI91822DH-AD-T1-E3
Description
IC, ADJ LDO REG 1.215V TO 5V 0.3A MSOP-8
Manufacturer
Vishay
Datasheet

Specifications of SI91822DH-AD-T1-E3

Primary Input Voltage
6V
Output Voltage Adjustable Range
1.215V To 5V
Dropout Voltage Vdo
150mV
No. Of Pins
8
Output Current
300mA
Operating Temperature Range
-40°C To +85°C
Number Of Outputs
1
Polarity
Positive
Input Voltage Max
6 V
Output Voltage
1.215 V to 5 V
Output Type
Adjustable
Dropout Voltage (max)
0.02 V at 10 mA
Line Regulation
0.18 % / V
Load Regulation
30 mV
Voltage Regulation Accuracy
1.5 %
Maximum Power Dissipation
0.846 W
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
MSOP-8
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
DESCRIPTION
The Si91822 is a 300-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 Si91822 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
600-mA peak current. This is useful for systems that have high
surge current upon turn-on. The Si91822 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
Document Number: 71671
S-51147—Rev. F, 20-Jun-05
FEATURES
D Low 150-mV Dropout at 300-mA Load
D Guaranteed 300-mA Output Current
D 600-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
D 1-mA Maximum Shutdown Current
D Built-in Short Circuit and Thermal Protection
D Out-Of-Regulation Error Flag (Power Good or POR)
TYPICAL APPLICATIONS CIRCUITS
GND
Capacitor
V
IN
2.2 mF
FIGURE 1. Fixed Output
1
2
3
4
C
DELAY
GND
V
IN
NOISE
Micropower 300-mA CMOS LDO Regulator
Si91822
SENSE/ADJ
GND
V
IN
ERROR
2.2 mF
V
0.1 mF
With Error Flag/Power-On-Reset
OUT
SD
8
7
6
5
FIGURE 3. Low Noise, Full Features Application
0.1 mF
2.2 mF
V
OUT
1
2
3
4
C
DELAY
GND SENSE/ADJ
V
IN
NOISE
Available
Si91822
ERROR
V
capacitor connected to the device’s C
LDO’s output noise for low noise applications.
The Si91822 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 Si91822 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.
GND
OUT
D Fixed1.215-V, 1.8-V, 2.5-V, 2.8-V, 3.0-V, 3.3-V, 5.0-V,
D Other Output Voltages Available by Special Order
APPLICATIONS
D Cellular Phones
D Laptop and Palm Computers
D PDA, Digital Still Cameras
V
SD
IN
2.2 mF
or Adjustable Output Voltage Options
8
7
6
5
2.2 mF
FIGURE 2. Adjustable Output
1
2
3
4
1 MW
C
DELAY
GND SENSE/ADJ
V
IN
NOISE
Si91822
ON/OFF
POR
V
OUT
ERROR
V
OUT
SD
Vishay Siliconix
8
7
6
5
NOISE
pin will lower the
Si91822
www.vishay.com
2.2 mF
V
OUT
1

Related parts for SI91822DH-AD-T1-E3

SI91822DH-AD-T1-E3 Summary of contents

Page 1

... IN 2.2 mF 2.2 mF GND NOISE 2 7 DELAY ERROR 0 GND SENSE/ADJ OUT Si91822 FIGURE 3. Low Noise, Full Features Application Si91822 Vishay Siliconix pin will lower the NOISE NOISE 2 7 DELAY ERROR 3 6 GND SENSE/ADJ OUT 2.2 mF Si91822 FIGURE 2. Adjustable Output ON/OFF POR 1 MW ...

Page 2

... Si91822 Vishay Siliconix ABSOLUTE MAXIMUM RATINGS Input Voltage Input Voltage Output Current 300 mA Continuous, Short Circuit Protected OUT Output Voltage OUT Maximum Junction Temperature J(max) Storage Temperature STG ESD (Human Body Model Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied ...

Page 3

... OUT is less than 2.0 V, the output will be in regulation when 2.0 V − V OUT(nom) w2 0.95 V NOM V V OUT OUT ERROR t DELAY FIGURE 4. Timing Diagram for Power-Up Si91822 Vishay Siliconix Limits −40 to 85_C Temp Min Typ Max Room 10 Room 30 Cap Room 5 Room 2 Room ...

Page 4

... Part Number Marking Voltage 1822 Si91822DH-12-T1—E3 1.215 V 1215 1822 Si91822DH-18-T1—E3 1.80 V 1800 1822 Si91822DH-25-T1—E3 2.50 V 2500 1822 Si91822DH-28-T1—E3 2.80 V 2800 1822 Si91822DH-30-T1—E3 3.00 V 3000 1822 Si91822DH-33-T1—E3 3.30 V 3300 1822 Si91822DH-50-T1—E3 5.00 V 5000 1822 Si91822DH-AD-T1—E3 ...

Page 5

... Document Number: 71671 S-51147—Rev. F, 20-Jun-05 400 500 600 I = 350 mA OUT I = 300 mA OUT OUT OUT 75 100 125 150 250 300 350 400 Si91822 Vishay Siliconix Dropout Characteristic 3.5 3 16.5 W LOAD 2.5 2.0 1.5 1.0 0.5 0 (V) IN Dropout Voltage vs. V OUT 300 250 200 ...

Page 6

... Si91822 Vishay Siliconix TYPICAL CHARACTERISTICS (INTERNALLY REGULATED, 25_C UNLESS NOTED) GND Current vs. Load Current 0 OUT −0.3 −0.6 −0.9 −1.2 −1 100 150 200 Load Current (mA) Power Supply Rejection 2.2 mF OUT I = 150 mA LOAD −20 −40 −60 −80 10 100 1000 10000 Frequency (Hz) www ...

Page 7

... V = 4.3 to 5.3 V INSTEP V = 3.3 V OUT C = 2.2 mF OUT 350 mA LOAD msec rise Document Number: 71671 S-51147—Rev. F, 20-Jun-05 Vishay Siliconix Load Transient Response-2 V OUT 10 mV/div I LOAD 100 mA/div 5.00 ms/div V = 3.3 V OUT C = 2.2 mF OUT I = 150 LOAD msec fall Load Transient Response-4 ...

Page 8

... Si91822 Vishay Siliconix TYPICAL WAVEFORMS Turn-On Sequence V 2 V/div V/div OUT C 2 V/div delay ERROR 2 V/div 10.00 ms/div 3.3 V OUT C = 0.1 mF delay C = 0.1 mF NOISE I = 350 mA LOAD Output Noise 500 mV/div 1 ms/div 3.3 V OUT I = 150 mA OUT C = 0.1 mF NOISE MHz www.vishay.com ...

Page 9

... S-51147—Rev. F, 20-Jun-05 Switches shown for device in normal operating mode (SD = HIGH NOISE + − − + − REF − NOISE + − − + − REF − Si91822 Vishay Siliconix 5 V OUT C OUT 2 EXT C DELAY 0.1 mF ERROR ADJ OUT C OUT 2 EXT C DELAY 0.1 mF ERROR 7 www.vishay.com 9 ...

Page 10

... OUT 25-kW to 150-kW range for low power consumption, while maintaining adequate noise immunity. Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon Technology and Package Reliability represent a composite of all qualified locations. http://www.vishay.com/ppg?71871. ...

Page 11

... Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay’ ...

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