MAX5033DASA+ Maxim Integrated Products, MAX5033DASA+ Datasheet - Page 8

• Manufacturer Part Number: MAX5033DASA+
• Description: IC DC-DC CONV HI EFF 8-SOIC
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX5033DASA+

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.25 ~ 13.2 V
• Current - Output: 500mA
• Frequency - Switching: 125kHz
• Voltage - Input: 7.5 ~ 76 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Power - Output: 471mW
• Output Voltage: 13.2 V
• Output Current: 0.5 A
• Input Voltage: 7.5 V to 76 V
• Supply Current: 270 uA
• Switching Frequency: 125 KHz
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

500mA, 76V, High-Efficiency, MAXPower
Step-Down DC-DC Converter
8
_______________________________________________________________________________________
PIN
GND
1
2
3
4
5
6
7
8
VD
FB
1.69V
ON/OFF
ON/OFF
R
R
NAME
SGND
h
l
GND
BST
V
VD
FB
LX
IN
x1
ENABLE
(FOR DRIVER)
REGULATOR
Boost Capacitor Connection. Connect a 0.1µF ceramic capacitor from BST to LX.
Internal Regulator Output. Bypass VD to GND with a 0.1µF ceramic capacitor.
Internal Connection. SGND must be connected to GND.
Output Sense Feedback Connection. For fixed output voltage (MAX5033A, MAX5033B, MAX5033C),
connect FB to V
set V
Shutdown Control Input. Pull ON/OFF low to put the device in shutdown mode. Drive ON/OFF high for
normal operation.
Ground
Input Voltage. Bypass V
Source Connection of Internal High-Side Switch
COMPENSATION
MAX5033
OUT
TYPE 3
. V
(FOR ANALOG)
REGULATOR
V
FB
REF
V
REF
regulating set point is 1.22V.
OUT
EAMP
. For adjustable output voltage (MAX5033D), use an external resistive voltage-divider to
IN
OSC
to GND with a low-ESR capacitor as close to the device as possible.
RAMP
CPWM
RAMP
CLK
SGND
CONTROL
LOGIC
FUNCTION
SHUTDOWN
THERMAL
CPFM
CILIM
Simplified Block Diagram
I
I
REF-LIM
REF-PFM
HIGH-SIDE
CURRENT
SENSE
Pin Description
V
IN
BST
LX