BP5221A Rohm Semiconductor, BP5221A Datasheet - Page 4

• Manufacturer Part Number: BP5221A
• Description: CONVERTER DC/DC 5V OUT .5A 9-SIP
• Manufacturer: Rohm Semiconductor
• Series: BP5221r
• Type: Point of Load (POL) Non-Isolatedr

Specifications of BP5221A

• Output: 5V
• Number Of Outputs: 1
• Power (watts): 2W
• Mounting Type: Through Hole
• Voltage - Input: 8 ~ 38V
• Package / Case: 9-SIP Module (8 Leads)
• 1st Output: 5 VDC @ 500mA
• Size / Dimension: 1.10" L x 0.47" W x 0.77" H (28mm x 12mm x 19.5mm)
• Power (watts) - Rated: 2.5W
• Operating Temperature: -20°C ~ 70°C
• Efficiency: 84%
• Output Voltage: 5 V
• Output Current: 0.5 A
• Input Voltage: 8 V to 38 V
• Switching Frequency: 190 KHz
• Operating Temperature Range: - 20 C to + 70 C
• Mounting Style: Through Hole
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• 3rd Output: -
• 2nd Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

BP5220A/BP5221A/BP5222A
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
(1) The basic application examples are shown in Fig.2.
(2) Switching on and off the output voltage is allowed.
(3) Fine adjustment of the output voltage is allowed.
Application Example 1 : DC / DC converter with protection circuit
Application Example 2 : Output ON / OFF control
Circuit operation
Application Examples
Adjustment of the output voltage can be
performed from pin 6 via the resistor by connecting
the output terminal (pin 2) or GND. (See
application example 3)
The only external parts required are the input and
output smoothing capacitors.
The output can be switched off by making pin 4
open (high impedance). (See Fig.3)
A resistor is used to limit the rise of output at power on. The resistance depends on the input voltage.
This is a standard application. Because the control current fluctuates with variations in circuits and components,
set the control current by adding a sufficient margin to the normal current level.
24V
Vi
+
BP5220A / BP5221A / BP5222A
9
BA10393
Be sure to use fuse for safety.
7
6
Vi
Fig.4
COMP.
5
4
+
3
2
120pF
ON / OFF
1
+
100 F
+
100k
V
5V
9
O
BP5220A / BP5221A / BP5222A
Be sure to use fuse for safety.
7
4/7
6
Fig.6
5
2SC1740
Vi
Vi
4
3
+
+
2
6
5
4
3
2
1
0
Be sure to use fuse for safety.
1
+
9
470 F
9
0.2
BP5220A / BP5221A / BP5222A
BP5220A / BP5221A / BP5222A
OUTPUT CURRENT (A)
0.4
7
7
6
Fig.5
6
0.6
Fig.3
Fig.2
V
SW
5
5
O
Vi = 24V
0.8
4
4
3
3
1.0
2
2
1.2
1
1
+
+
2010.03 - Rev. B
Output OFF
Data Sheet
V
V
O
O