SI-8221L Allegro Microsystems Inc, SI-8221L Datasheet - Page 4

• Manufacturer Part Number: SI-8221L
• Description: IC, LINEAR VOLTAGE REGULATOR 5V TO-220-5
• Manufacturer: Allegro Microsystems Inc

Specifications of SI-8221L

• Primary Input Voltage: 15V
• Output Voltage Fixed: 5V
• No. Of Outputs: 1
• No. Of Pins: 5
• Output Current: 400mA
• Operating Temperature Range: -10°C To +65°C
• Termination Type: Through Hole
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

30
1. A low-impedance capacitor suitable for switching applications must be used for the external capacitor and must be
2. The SI-8200L and 8300L series do not have a built-in overcurrent protection circuit. Thus, avoid short-circuit
3. The SI-8300L series may not start up if the input voltage rises too rapidly.
4. Terminals L
5. The IC’s metallic heatsink is electrically floating. Do not connect it to GND or any other circuit.
6. Since the SI-8200L and 8300L series have an open-package construction, they can only be operated in specific
SI-8200L/8300L
Switching Type
Caution
connected as close to the IC as possible in order to assure low ripple voltage and stable switching operation.
conditions that may cause a flow of overcurrent.
Do not use the SI-8300L series in applications where the input terminal, pin6, is opened and closed directly in a state
where the input voltage is already applied.
environments. Verify the operating environment and use the IC within the conditions indicated in the reliability data.
V
Block Diagram
SI-8201L•8202L•8203L•8204L•8221L
SI-8301L•8303L
IN
Ta-PD Characteristics
Drive
1.5
1.0
0.5
0
0
Tr1
Ambient temperature Ta ( C)
IN
20
and NC in the connection diagram must be left unconnected to other circuits.
Amp
40
60
Vref
L
IN
SI-8201L
SI-8221L
SI-8211L
D
I
80
8202L
8203L
8204L
8213L
Self Oscillation Type with Coil
100
L1
3.0
2.0
1.0
0
0
V
GND
OUT
Ambient temperature Ta ( C)
Series
20
40
60
SI-8211L•8213L
V
IN
SI-8301L
Vref
8303L
80
100
Amp
Tr1
Tr2
Drive
P
Vo : Output Voltage
Io
Note : The efficiency depends on the
D
= V
L
IN
: Output Current
: Efficiency
D
O
input voltage and the output
current. Thus, obtain the value
from the efficiency graph and
substitute the percentage in
the formula above.
I
• I
O
100
L1
–1
V
GND
OUT