MAX8664EVKIT+ Maxim Integrated Products, MAX8664EVKIT+ Datasheet - Page 8

• Manufacturer Part Number: MAX8664EVKIT+
• Description: KIT EVAL FOR MAX8664
• Manufacturer: Maxim Integrated Products

Specifications of MAX8664EVKIT+

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 2, Non-Isolated
• Voltage - Input: 4.5 ~ 28V
• Regulator Topology: Buck
• Board Type: Fully Populated
• Utilized Ic / Part: MAX8664
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Voltage - Output: -
• Power - Output: -
• Frequency - Switching: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Low-Cost, Dual-Output, Step-Down
Controller with Fast Transient Response
Figure 1. Functional Diagram
8
REFIN2
FB2
V
FB1
_______________________________________________________________________________________
CC
IN
6.5V LDO
REF
SOFT-START 1
GENERATOR
REFERENCE
VOLTAGE
BIAS
OPEN S1 AND CLOSE S2.
OTHERWISE, CLOSE S1
REF
IF V
AND OPEN S2.
REFIN2
SHUTDOWN
THERMAL
S2
S1
0.6V
REF2
> 2.0V
1.5V
EN
SHUTDOWN 1
REF
VL
V
CC
SHUTDOWN
CONTROL
SHUTDOWN
THERMAL
LOGIC
50mV
COMPARATOR 1
CIRCUITRY
COMPARATOR 2
SHUTDOWN 2
UVLO
EN
PWM
SHUTDOWN
PWM
THERMAL
ENABLE2
REF1 - 0.1V
REF2 - 0.1V
CLOCK 1
SOFT-START
CLOCK 2
FB1
FB2
CONTROL
CONTROL
CURRENT-LIMIT
CURRENT-LIMIT
CLOCK 1
CLOCK 2
COMPARATOR
COMPARATOR
LOGIC
LOGIC
SHUTDOWN 1
LX2
LX1
50μA
50μA
SHUTDOWN 2
ENABLE
CHARGING SWITCH
OSCILLATOR
CHARGING SWITCH
BST CAP
BST CAP
4μA
LX1
ILIM1
BST1
DH1
DL1
PGND
VL
ILIM2
BST2
DH2
LX2
DL2
OSC/EN12
PWRGD
GND