MAX8664BEEP+ Maxim Integrated Products, MAX8664BEEP+ Datasheet - Page 3

• Manufacturer Part Number: MAX8664BEEP+
• Description: IC CNTRLR DUAL OUT 20-QSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX8664BEEP+

• Applications: Power Supplies
• Current - Supply: 1.4mA
• Voltage - Supply: 4.5 V ~ 28 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-QSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS (continued)
(V
T
Note 2: Specifications at -40°C are guaranteed by design and not production tested.
Note 3: This current linearly compensates for the MOSFET temperature coefficient.
A
PROTECTION FEATURES
Overvoltage Protection (OVP)
Threshold
Power-Good (PWRGD) Threshold
High-Side Current-Sense Program
Current (Note 3)
ILIM Leakage
High-Side Current-Sense
Overcurrent Trip Adjustment Range
Internal Soft-Start Time
RE FIN 2 Inter nal P ul l d ow n Resi stance
Thermal-Shutdown Threshold
DRIVER SPECIFICATIONS
DH_ Driver Resistance
DL_ Driver Resistance
Dead Time for Low-Side to
High-Side Transition
DH_ Minimum On-Time
BST Current
Internal Boost Switch Resistance
PWM CLOCK OSCILLATOR
PWM Clock-Frequency Accuracy
PWM Clock-Frequency Adjustment
Range
OSC/EN12 Disable Current
IN
= +25°C.) (Note 2)
= 12V, R
PARAMETER
OSC/EN12
Controller with Fast Transient Response
_______________________________________________________________________________________
to GND = 56.1kΩ, REFIN2 = V
Low-Cost, Dual-Output, Step-Down
V
V
V
V
Hysteresis
T
T
T
T
R
Engaged momentarily at startup
Junction temperature
Sourcing current,
I
Sinking current,
I
Sourcing current,
I
Sinking current,
I
DL_ falling to DH_ rising
V
OSC/EN12 not connected
R
DH
DH
DL
DL
A
A
A
A
FB1
FB2
REFIN2
FB1
OSC/EN12
BST
OSC/EN12
= +85
= +25
= +25°C
= +85°C
= -50mA
= 50mA
= -50mA
= 50mA
rising
rising, V
rising, MAX8664A
- V
LX
= V
o
o
C
C
= 7V, V
= 56.1kΩ, 400kHz
= 226kΩ to 22.6kΩ
VCC
REFIN2
, V
CC
LX
FB_
≤ 1.3V
CONDITIONS
, T
= 28V, V
rising, MAX8664B
A
= -40°C to +85°C, unless otherwise noted. Typical values are at
FB_
V
V
V
V
V
V
V
V
V
V
VL
IN
VL
IN
VL
IN
VL
IN
VL
VL
= 0.55V
= V
= V
= V
= V
= 6.5V
= 6.5V
= 6.5V
= 6.5V
= 6.5V
= 5V
VL
VL
VL
VL
= V
= V
= V
= V
VCC
VCC
VCC
VCC
= 5V
= 5V
= 5V
= 5V
0.500
0.05
MIN
100
-15
44
13
70
REFIN2
+ 0.15
0.525
0.001
+160
TYP
0.75
1.35
1.55
1.25
108
0.1
0.1
2.5
0.9
1.0
1.3
1.5
0.6
0.7
1.5
60
50
10
25
28
5
6
0.550
MAX
1000
0.40
+15
149
1.0
2.1
1.4
1.1
2.3
2.5
60
20
43
2
UNITS
kHz
mA
ms
µA
µA
µA
µA
°C
ns
ns
%
%
Ω
Ω
Ω
Ω
V
V
V
3