Secondary LDO Regulator Series for Local Power Supplies
500mA Secondary LDO Regulators
for Local Power Supplies
BD□□KA5,BD□□KA5W Series,BD00KA5W Series
No.09024EAT01
●General Description
The BD□□KA5 series are low-saturation regulators that are available for output currents up to 500mA. The output voltage
precision is ±1%. These secondary LDO regulators are offered in several output voltages and package lineups with or
without ON/OFF switches (that set the circuit current to 0μA at shutdown). This series can be used for a broad spectrum of
applications ranging from TVs and car audio systems to HDDs, PCs, and DVDs. There regulators have a built-in overcurrent
protection circuit that prevents the destruction of the IC, due to output short circuits and a thermal shutdown circuit.
●Features
1) Maximum output current : 500ｍA
2) Output voltage precision : ±1%
3) Low-saturation voltage with PMOS output : 0.12V Typ.(Io=200mA)
4) Built-in over-current protection circuit
5) Built-in thermal shutdown circuit
6) Shutdown switch(BD□□KA5WFP and BD□□KA5WF series)
7) TO252-3,TO252-5 and SOP8 package lineup
8) Operating temperature range : -40℃ to +105℃
9) Ceramic capacitor compatible(recommended capacitance : 1μF or greater)
●Applications
Microcontrollers and all electronic devices that use logic circuits
●Product line up
Part Number
BD□□KA5WFP
BD□□KA5WF
BD□□KA5FP
1.0
○
○
○
Part Number：BD□□KA5□ □
a
b c
Symbol
a
□□
10
12
15
18
Switch
b
c
1.2
○
○
○
1.5
○
○
○
1.8
○
○
○
2.5
○
○
○
3.0
○
○
○
Details
Output Voltage Designation
Output Voltage(V)
□□
1.0V(Typ.)
25
1.2V(Typ.)
30
1.5V(Typ.)
33
1.8V(Typ.)
00
3.3
○
○
○
Variable
○
○
-
Package
TO252-5
SOP8
TO252-3
Output Voltage(V)
2.5V(Typ.)
3.0V(Typ.)
3.3V(Typ.)
Variable Output Typ
“W” included：Built-in shutdown switch
“W” not included：No shutdown switch
Package
FP：TO252-5 / TO252-3
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
F：SOP8
1/9
2009.04 - Rev.A
