bsv-1.5s12r0h XP Power Limited, bsv-1.5s12r0h Datasheet - Page 56

• Manufacturer Part Number: bsv-1.5s12r0h
• Description: Pol Dc-dc Converter
• Manufacturer: XP Power Limited

Bellnix DC-DC CONVERTERS
BDD20080825
<Standard Connection Circuit Diagram>
<Method of Adjusting Output Voltage>
To calculate the external resistance, please refer to the equation below. After calculating the external resistance, please check the output voltage
and adjust the resistance value.
When using at 3.3V without adjusting output voltage, keep V.ADJ pin (12Pin) open.
By connecting a resistor between +Vout pin (9-11Pin) and V.ADJ pin (12Pin), you can adjust the output voltage within the range of 0.8-3.3V.
(Vout Down Control)
By connecting a resistor between Vadj pin (12Pin) and GND pin (5-8Pin), you can adjust the output voltage within the range of 3.3V-3.6V.
(Vout Up Control)
performance C1 will be required. Also we recommend a pattern with an additional C1 to lower the input impedance, and to
verify on a actual equipment. Or, by adding C2 you can lower the output ripple more.
Note 1: When not using the ON/OFF control, keep ON/OFF pin open.
Note 2: When not adjusting output, keep V.ADJ pin open.
Note 3: When it includes inductance in input line or switching element is connected to the input side or the wire is long, fulfilling the
Note 4: There is no +S, -Spin in BSV-3.3S6R0A (SIP type).
5,6,7,8
Series
BSV
Recommended Capacitor
Vs
C1=33µF10WV
C2=2.2µF-22µF
C2: An output capacitor is built-in, so it is not required. However, by connecting 2.2µF-22µF, you can lower the noise more.
Figure 7
Rx
Ry
GND
Vin
Rz
F1 8A
12
C1
9,10,11
V.ADJ
+Vout
High-speed Response, Step-Down DC-DC Converter
on/off
Vin
SW
Open =On
Short=Off
Figure 6
R1
R2
* There is no P-Good, +S, -S pin in BSV-3.3S6R0A (SIP type).
Load
BSV-3.3S6R0 A
Series
GND
To set within the range of 0.8V-3.3V
To set within the range of 3.3V-3.6V
Vo= Required output V （Adjustable voltage range=0.8-3.6V）
Rx=10.2k ohm
Ry=2.7k ohm
Rz=0.1K ohm
Vs=0.703V
R
R
Vout
Vadj
-S
1
+S
2
=
=
Rx
Ry
Rx
･
(
Vs
Vo
20 Watt BSV-A Series
･
Rx
Ry
−
−
Ry
･
(
R1
R2
R1:Vout Down
R2:Vout UP
Vs
Vo
Ry
(
)
Vo
･
−
−
Vs
Vs
Rx
−
C2
Vout
Vs
)
Ultra High Efficiency
･
Vs
)
−
−
Rz
Rz
Load
93%
4