MAX5035BUSA+ Maxim Integrated Products, MAX5035BUSA+ Datasheet - Page 9

• Manufacturer Part Number: MAX5035BUSA+
• Description: IC DC-DC CONV HI EFF 8-SOIC
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX5035BUSA+

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 5V
• Current - Output: 1A
• Frequency - Switching: 125kHz
• Voltage - Input: 7.5 ~ 76 V
• Operating Temperature: 0°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Power - Output: 471mW
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

GND
VD
FB
PIN
1
2
3
4
5
6
7
8
1.69V
ON/OFF
R
R
h
l
ON/OFF
NAME
SGND
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 (MAX5035A, MAX5035B, MAX5035C),
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
MAX5035
TYPE 3
OUT
(FOR ANALOG)
. V
REGULATOR
1A, 76V, High-Efficiency MAXPower
V
REF
V
FB
REF
regulating set point is 1.22V.
OUT
EAMP
. For adjustable output voltage (MAX5035D), use an external resistive voltage-divider to
OSC
IN
to GND with a low ESR capacitor as close to the device as possible.
RAMP
CPWM
Step-Down DC-DC Converter
RAMP
CLK
SGND
CONTROL
LOGIC
FUNCTION
SHUTDOWN
THERMAL
CPFM
CILIM
I
I
REF-LIM
REF-PFM
HIGH-SIDE
CURRENT
SENSE
Pin Description
Block Diagram
V
IN
BST
LX
9