MAX724CCK Maxim Integrated Products, MAX724CCK Datasheet - Page 2

• Manufacturer Part Number: MAX724CCK
• Description: IC DC/DC REG PWM STP-DWN TO220-5
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck), Step-Up (Boost), Inverting, Flybackr

Specifications of MAX724CCK

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 2.5 ~ 35 V
• Current - Output: 5A
• Frequency - Switching: 100kHz
• Voltage - Input: 8 ~ 40 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: TO-220-5 (Straight Leads)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

The MAX724/MAX726 are monolithic, bipolar, pulse-
width modulation (PWM), switch-mode DC-DC regula-
tors optimized for step-down applications. The
MAX724 is rated at 5A, and the MAX726 at 2A. Few
external components are needed for standard opera-
tion because the power switch, oscillator, and control
circuitry are all on-chip. Employing a classic buck
topology, these regulators perform high-current step-
down functions, but can also be configured as invert-
ers, negative boost converters, or flyback converters.
These regulators have excellent dynamic and transient
response characteristics, while featuring cycle-by-cycle
current limiting to protect against overcurrent faults and
short-circuit output faults. The MAX724/MAX726 also
have a wide 8V to 40V input range in the buck step-
down configuration. In inverting and boost configura-
tions, the input can be as low as 5V.
The MAX724/MAX726 are available in a 5-pin TO-220
package. The devices have a preset 100kHz oscillator
frequency and a preset current limit of 6.5A (MAX724)
or 2.6A (MAX726).
19-0107; Rev 3; 9/95
Call toll free 1-800-998-8800 for free samples or literature.
__________Typical Operating Circuit
_______________General Description
_______________________Applications
220 F
8V TO 40V
INPUT
2.7k
Distributed Power from High-Voltage Buses
High-Current, High-Voltage Step-Down Applications
High-Current Inverter
Negative Boost Converter
Multiple-Output Buck Converter
Isolated DC-DC Conversion
0.01 F
V
V
IN
5A STEP-DOWN CONVERTER
C
________________________________________________________________ Maxim Integrated Products
MAX724
GND
V
FB
SW
MBR745
50 H
2.21k
Switch-Mode DC-DC Regulators
2.8k
5V AT 5A
OUTPUT
470 F
5A/2A Step-Down, PWM,
MAX724CCK
MAX724ECK
MAX726CCK
MAX726ECK
__________________Pin Configuration
______________Ordering Information
___________________________Features
Input Range: Up to 40V
5A On-Chip Power Switch (MAX724)
2A On-Chip Power Switch (MAX726)
Adjustable Output: 2.5V to 35V
100kHz Switching Frequency
Excellent Dynamic Characteristics
Few External Components
8.5mA Quiescent Current
TO-220 Package
FRONT VIEW
CASE IS CONNECTED TO GROUND.
STANDARD PACKAGE HAS STAGGERED LEADS.
CONTACT FACTORY FOR STRAIGHT LEADS.
PART
-40°C to +85°C
-40°C to +85°C
MAX724
MAX726
TEMP. RANGE
5-PIN TO-220
0°C to +70°C
0°C to +70°C
5
4
3
2
1
PIN-PACKAGE
5 TO-220
5 TO-220
5 TO-220
5 TO-220
GND
FB
V
IN
V
V
C
SW
1