SI91821DH-33-T1-E3 Vishay, SI91821DH-33-T1-E3 Datasheet - Page 5
![IC, LDO VOLT REG, 3.3V, 0.3A, MSOP-8](/photos/18/99/189923/3833557_sml.gif)
SI91821DH-33-T1-E3
Manufacturer Part Number
SI91821DH-33-T1-E3
Description
IC, LDO VOLT REG, 3.3V, 0.3A, MSOP-8
Manufacturer
Vishay
Datasheet
1.SI91821DH-277-T1.pdf
(11 pages)
Specifications of SI91821DH-33-T1-E3
Primary Input Voltage
6V
Output Voltage Fixed
3.3V
Dropout Voltage Vdo
120mV
No. Of Pins
8
Output Current
300mA
Operating Temperature Range
-40°C To +85°C
Termination Type
SMD
Number Of Outputs
1
Polarity
Positive
Input Voltage Max
6 V
Output Voltage
3.3 V
Output Type
Fixed
Dropout Voltage (max)
0.02 V at 10 mA
Line Regulation
10 mV
Load Regulation
30 mV
Voltage Regulation Accuracy
1.5 %
Maximum Power Dissipation
0.666 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
Document Number: 71614
S-51147–Rev. E, 20-Jun-05
BLOCK DIAGRAM
V
V
IN
IN
SD
SD
ON
ON
2.2 mF
2.2 mF
C
C
GND
GND
IN
IN
OFF
OFF
2
7
3
2
7
3
6 MW
6 MW
5
5
SET
RFB2
RFB1
SET
Figure 6.
1.215 V
1.215 V
V
V
REF
REF
+
+
6
6
Figure 5.
300-mA CMOS LDO Regulator (Adjustable Output)
+
−
+
−
60 mV
60 mV
C
C
+
−
+
−
NOISE
NOISE
+
−
+
−
300-mA CMOS LDO Regulator
2 mA
2 mA
To V
To V
−
+
−
+
Switches shown for device in normal operating mode (SD = HIGH)
IN
IN
1, 4
8
1, 4
8
2.2 mF
2.2 mF
C
C
OUT
OUT
Vishay Siliconix
V
SET
Si91821
R
R
R
R
EXT
2
1
EXT
www.vishay.com
V
ERROR
V
ERROR
OUT
OUT
5