kia7805api Korea Electronics (KEC GROUP), kia7805api Datasheet - Page 15

• Manufacturer Part Number: kia7805api
• Description: Bipolar Linear Integrated Circuit
• Manufacturer: Korea Electronics (KEC GROUP)

2008. 2. 18
APPLICATION CIRCUIT
V
V
V
IN
IN
IN
(1) VOLTAGE BOOST REGULATOR
(a) Voltage boost by use of zener diode
(b) Voltage boost by use of resistor
(c) Adjustable output regulator
Revision No : 4
KIA7805AF/API~KIA7824AF/API
V
KIA78xx
KIA78xx
KIA4558P
Z
KIA78xx
V
OUT
V
V
OUT
OUT
I
B
= V
= V
= V
OUT(IC)
*I1
OUT(IC)
OUT(IC)
1
2
(1+
(1+
+ V
R2
R1
+
-
Z
R2
R1
)
) + R2 I
B
*I1 > =
*I1
V
V
>
=
OUT
OUT
5mA
V
OUT (IC)
R1
V
OUT
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