MCP16301 MICROCHIP [Microchip Technology], MCP16301 Datasheet - Page 15

• Manufacturer Part Number: MCP16301
• Description: High Voltage Input Integrated Switch Step-Down Regulator
• Manufacturer: MICROCHIP [Microchip Technology]

To calculate the shunt resistance, the maximum I
and I
(Equation
EQUATION 4-2:
FIGURE 4-4:
Series regulator applications use a Zener diode to drop
the excess voltage. The series regulator bias source
can be input or output voltage derived, as shown in
Figure
3.0V and 5.5V at all times for proper circuit operation.
© 2011 Microchip Technology Inc.
Z
4-4. The boost supply must remain between
current are used at the minimum input voltage
4-2).
15V to 30V
R
Boost Diode
SH
VZ = 7.5V
12V
=
V
V
SHUNT RESISTANCE
Series Regulator Boost Supply.
C
C
IN
IN
V
----------------------------- -
IN
IN
I
INMIN
Boost
+
–
I
V
Z
Z
V
V
EN
EN
IN
IN
MCP16301
MCP16301
GND
GND
BOOST
BOOST
BOOST
SW
SW
FB
FB
V
manufacturer’s data sheet. Typical I
Z
and I
Boost Diode
FW Diode
FW Diode
C
C
Z
B
B
can be found on the Zener diode
L
L
VZ = 7.5V
C
C
OUT
OUT
MCP16301
R
R
R
R
V
TOP
TOP
BOT
BOT
Z
V
DS25004A-page 15
OUT
= 1 mA.
OUT
2V
12V