MAX15034BEVKIT+ Maxim Integrated Products, MAX15034BEVKIT+ Datasheet - Page 11

• Manufacturer Part Number: MAX15034BEVKIT+
• Description: KIT EVALUATION FOR MAX15034
• Manufacturer: Maxim Integrated Products

Specifications of MAX15034BEVKIT+

• Main Purpose: DC/DC, Step Down
• Voltage - Input: 5 ~ 28V
• Regulator Topology: Buck
• Board Type: Fully Populated
• Utilized Ic / Part: MAX15034
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Voltage - Output: -
• Power - Output: -
• Frequency - Switching: -
• Outputs And Type: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Two enable comparators (CEN1 and CEN2) are avail-
able to control and sequence the two PWM sections
through the enable (EN1 or EN2) inputs. An oscillator,
with an externally programmable frequency generates
two clock pulse trains and two ramps for both PWM
sections. The two clocks and the two ramps are 180°
out of phase with each other.
A linear regulator (REG) generates the 5V to supply the
device. This regulator has the output-current capability
necessary to provide for the MAX15034’s internal
Figure 1. Block Diagram
AVGLIMIT
Configurable, Single-/Dual-Output, Synchronous
EAOUT1
EAOUT2
MODE
AGND
CLP1
EAN1
EAN2
CLP2
REG
EN1
EN2 28
IN
Buck Controller for High-Current Applications
10
12
11
22
15
21
6
4
9
5
8
3
V
REG
= 5V
______________________________________________________________________________________
V
INTREF
= 0.61V
VEA2
FOR INTERNAL
BIASING
UVLO
MUX
VEA1
1.225V
1.225V
CEN2
CEN1
RAMP
2V
P-P
RAMP
SHUTDOWN
2V
THERMAL
P-P
CEA2
CEA1
circuitry and the power for the external MOSFET’s gate
drivers. Internal UVLO circuitry ensures that the
MAX15034 starts up when V
age levels to guarantee safe operation of the IC and of
the power MOSFETs.
Finally, a thermal-shutdown feature protects the device
during thermal faults and shuts down the MAX15034
when the die temperature exceeds +160°C.
OSCILLATOR
AND PHASE
SPLITTER
CPWM1
CPWM2
DF2 AND
DF1 AND
HICCUP
HICCUP
LOGIC
LOGIC
180°
0°
EXTERNAL FREQUENCY SYNC
AND DRIVER
AND DRIVER
CONTROL
CONTROL
LOGIC 2
LOGIC 1
REG
is at the correct volt-
CA1
CA2
V
DD
18
13 CSP1
16
19
24
14 CSN1
17
20
27
26
25
23
7 RT/CLKIN
2 CSP2
1 CSN2
BST2
DH2
DL2
BST1
LX1
V
DL1
LX2
PGND
DH1
DD
11