MAX8664 Maxim Integrated Products, MAX8664 Datasheet - Page 2

• Manufacturer Part Number: MAX8664
• Description: Step-Down Controller
• Manufacturer: Maxim Integrated Products

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ABSOLUTE MAXIMUM RATINGS
IN to GND ...........................................................…-0.3V to +30V
VL to GND...................................................................-0.3 to +8V
IN, BST_ to VL ........................................................-0.3V to +30V
V
VL to V CC ....................................................................-2V to +8V
PGND to GND .......................................................-0.3V to +0.6V
DL_ to PGND...............................................-0.3V to (V
DH_ to PGND............................................-0.3V to (V
BST_ to GND.............................................................-0.3V to 38V
BST_ to LX ................................................................-0.3V to +8V
LX_ to PGND .................-1V (-2.5V for < 50ns transient) to +30V
DH_ to LX_................................................-0.3V to (V
Low-Cost, Dual-Output, Step-Down
Controller with Fast Transient Response
Note 1: Package mounted on a multilayer PCB.
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.
ELECTRICAL CHARACTERISTICS
(V
T
2
SUPPLY VOLTAGES
IN Supply Voltage
VL Output Voltage
V
V
(UVLO)
Standby Supply Current
Operating Supply Current
REGULATOR SPECIFICATIONS
Reference Accuracy
FB_ Regulation Accuracy
REFIN2 to Internal Reference
Switchover Threshold
RE FIN 2 M axi m um P r og r am V ol tag e
REFIN2 Disable Threshold
FB Input Bias Current
REFIN2 Bias Current
FB Propagation Delay
CC
A
IN
CC
CC
= +25°C.) (Note 2)
, FB_, PWRGD to GND.......................................-0.3V to +6V
_______________________________________________________________________________________
= 12V, R
Output Voltage
Undervoltage Lockout
PARAMETER
OSC/EN12
to GND = 56.1kΩ, REFIN2 = V
IN = VL = V
7.2V < V
7.2V < V
Rising
Hysteresis
OSC/EN12 not
connected
No switching,
V
T
T
V
V
Not to be switched during operation
V
V
FB rising to DH falling
A
A
FB_
REFIN2
REFIN2
FB
REFIN2
= 0°C to +85°C
= -40°C to +85°C
= 0.5V
= 0.65V
= 0.65V
IN
IN
= V
= 1.000V
< 28V, 0 < I
< 28V, 0 < I
CC
VCC
BST_
BST_
VL
V
V
V
V
+ 0.3V)
+ 0.3V)
+ 0.3V)
IN
CC
IN
CC
CC
CONDITIONS
= 12V, I
= 12V, I
VL
CC
= V
= V
, T
< 60mA
< 5mA
A
IN
IN
= -40°C to +85°C, unless otherwise noted. Typical values are at
= V
= V
T
T
IN
IN
A
A
ILIM_ to GND ...............................................-0.3V to (V
ILIM_ to LX_............................................................-0.6V to +30V
OSC/EN12, REFIN2 to GND .....................-0.3V to (V
VL Continuous Current ..............................................125mA RMS
V
Continuous Power Dissipation (T
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
VL
VL
= 0°C to +85°C
= -40°C to +85°C
CC
20-Pin QSOP (derate 11.0mW/°C above +70°C).........884mW
= 5V, I
= 5V, I
Continuous Current..............................................10mA RMS
IN
IN
+ I
+ I
VL
VL
+ I
+ I
VCC
VCC
0.5955
0.5930
0.5952
0.5925
0.995
6.10
MIN
7.2
4.5
4.5
3.4
2
A
= +70°C) (Note 1)
V
0.095
0.600
0.600
0.600
0.600
1.000
TYP
0.08
350
VCC
6.6
5.0
3.5
1.4
1.1
0.7
1.3
50
90
3
3
-
0.6045
0.6070
0.6048
0.6075
V
1.005
MAX
28.0
6.75
VCC
5.5
5.5
3.6
0.2
0.2
2.5
1.8
0.3
VCC
-
IN
UNITS
+ 0.3V)
+ 0.3V)
mV
mA
mA
mV
nA
nA
ns
V
V
V
V
V
V
V
V