MAX8654ETX Maxim Integrated Products, MAX8654ETX Datasheet - Page 2

• Manufacturer Part Number: MAX8654ETX
• Description: DC/DC Switching Regulators 12V 8A 1.2MHz Step Down Regulator
• Manufacturer: Maxim Integrated Products

Specifications of MAX8654ETX

• Output Voltage: 0.6 V to 0.85 V
• Output Current: 8 A
• Input Voltage: 4.5 V to 14 V
• Switching Frequency: 1 MHz
• Mounting Style: SMD/SMT
• Package / Case: TQFN-36
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

12V, 8A 1.2MHz
Step-Down Regulator
ABSOLUTE MAXIMUM RATINGS
SYNC, VL, PWRGD to GND...................................-0.3V to +4.5V
SYNCOUT, COMP, SS, FB,
VDL to PGND............................................................-0.3V to +6V
VP, IN, EN to GND..................................................-0.3V to +16V
LX Current (Note 1: -12A to +12A)
BST to LX .………………………………………………-0.3V to +6V
BST to GND ……………………………………..-0.3V to (V
ELECTRICAL CHARACTERISTICS
(V
unless otherwise noted.)
Note 1: LX has internal clamp diodes to PGND and IN. Applications that forward bias these diodes should take care not to exceed
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
2
IN/VP
IN and VP Voltage Range
VDL Voltage Range
VL Output Voltage
VDL Output Voltage
IN + VP Supply Current
VL Supply Current
VDL Supply Current
IN + VP Shutdown Current
VL Undervoltage Lockout
Threshold
VDL and IN Undervoltage
Lockout Threshold
BST
BST Shutdown Supply Current
PWM COMPARATOR
PWM Comparator Propagation
Delay
COMP
COMP Clamp Voltage, High
COMP Slew Rate
COMP Shutdown Resistance
IN
REFIN, ILIM, FREQ to GND .....................-0.3V to (V
_______________________________________________________________________________________
= V
EN
the IC’s package power-dissipation limits.
PARAMETER
= V
VP
= 12V, V
VDL
= 5V, V
VP = VDL
I
I
Not switching, no load
f
L = 1.5μH
f
f
V
LX starts/stops switching,
2μs rising/falling edge deglitch
LX starts/stops switching,
3μs rising/falling edge deglitch
V
5mV overdrive
From COMP to GND, V
VL
VDL
S
S
S
P
EN
= 500kHz, no load,
= 500kHz, V
= 500kHz, V
= V
VL
= 5mA
= 50mA
= 0V, V
= 3.3V, V
IN
= 13.2V, V
IN
VL
VDL
= V
SYNC
VL
= 3.8V from separate supply
VP
= 5.5V from separate supply
IN
EN
+ 0.3V)
= V
+ 6V)
= 0V, V
CONDITIONS
= V
EN
BST
VDL
= 0V
= V
FB
= V
VDL
= 0.5V, T
PGND to GND .......................................................-0.3V to +0.3V
Continuous Power Dissipation (T
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......………………………………….+150°C
Storage Temperature Range .............................-65°C to +150°C
Thermal Resistance Junction to Exposed Pad (EP)...........3°C/W
Lead Temperature (soldering, 10s) .................................+300°C
VL
36-Pin Thin QFN (derate 35.7mW/°C above +70°C) ...2857.1mW
= 5V
= unconnected
V
V
V
V
V
V
IN
IN
VL
VL
IN
IN
A
= 12V
= 4.5V
rising
falling
rising
falling
= -40°C to +85°C, typical values are at T
MIN
4.5
4.5
2.8
3.8
A
= +70°C)
TYP
3.3
2.7
1.6
2.9
1.8
45
28
25
10
16
5
3
7
7
MAX
5.5
3.1
4.4
14
20
10
A
= +25°C,
UNITS
V/μs
mA
mA
mA
μA
μA
ns
V
V
V
V
V
V
V
Ω