MAX797H Maxim, MAX797H Datasheet - Page 8

• Manufacturer Part Number: MAX797H
• Description: High-Voltage / Step-Down Controller with Synchronous Rectifier for CPU Power
• Manufacturer: Maxim

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
8
© 1997 Maxim Integrated Products
High-Voltage, Step-Down Controller with
Synchronous Rectifier for CPU Power
Figure 2. Powering V+ and VL with a +5V Linear Regulator
Figure 4. Powering V+ with a Zener Shunt Regulator
___________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 [phone]
SHDN
V+
MAX797H
R1
R2
SHDN
VL
DH
V+
OUT
MAX797H
ADJ
R1
IN
VL
DH
Printed USA
UP TO +40V
POWER INPUT
+7V TO +40V
INPUT
Figure 3. Dividing the Power Input to Supply V+
Figure 5. Powering V+ with a Zener Dropping Diode
TRANSISTOR COUNT: 913
___________________Chip Information
R1
is a registered trademark of Maxim Integrated Products.
SHDN
V+
MAX797H
Q1
SHDN
V+
MAX797H
VL
12V
DH
VL
DH
100k
300k
+20V TO +40V
POWER INPUT
+8V TO +40V
POWER INPUT