MAX1858AEEG+ Maxim Integrated Products, MAX1858AEEG+ Datasheet - Page 2

• Manufacturer Part Number: MAX1858AEEG+
• Description: IC CNTRLR BUCK DUAL 24-QSOP
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX1858AEEG+

• Internal Switch(s): No
• Synchronous Rectifier: No
• Number Of Outputs: 2
• Voltage - Output: 0 ~ 18 V
• Current - Output: 10A
• Frequency - Switching: 100kHz ~ 600kHz
• Voltage - Input: 4.5 ~ 23 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-QSOP
• Power - Output: 762mW
• Output Voltage: 0 V to 18 V
• Output Current: 10 A
• Input Voltage: 4.5 V to 23 V
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ABSOLUTE MAXIMUM RATINGS
V+ to GND ..............................................................-0.3V to +25V
PGND to GND .......................................................-0.3V to +0.3V
V
BST1, BST2 to GND ...............................................-0.3V to +30V
LX1 to BST1..............................................................-6V to +0.3V
LX2 to BST2..............................................................-6V to +0.3V
DH1 to LX1 ..............................................-0.3V to (V
DH2 to LX2 ..............................................-0.3V to (V
DL1, DL2 to PGND........................................-0.3V to (V
CKO, REF, OSC, ILIM1, ILIM2,
Dual 180° Out-of-Phase Buck Controllers with
Sequencing/Prebias Startup and POR
ELECTRICAL CHARACTERISTICS
(V+ = 12V, EN = ILIM_ = V
compensation components for COMP_ are from Figure 1, T
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
L
GENERAL
V+ Operating Range
V+ Operating Supply Current
V+ Standby Supply Current
Thermal Shutdown
Current-Limit Threshold
V
Output Voltage
V
Trip Level
V
Hysteresis
REFERENCE
Output Voltage
Reference Load Regulation
SOFT-START
Digital Ramp Period
Soft-Start Steps
FREQUENCY
Low End of Range
High End of Range
DH_ Minimum Off-Time
COMP1, COMP2 to GND ..........................-0.3V to (V
L
L
to GND ..................-0.3V to the lower of +6V and (V+ + 0.3V)
L
_______________________________________________________________________________________
Undervoltage Lockout Rising
Undervoltage Lockout
REGULATOR
PARAMETER
L
, SYNC = GND, I
(Note 2)
V
V
EN = LX_ = FB_ = 0V
Rising temperature, typical hysteresis = 10°C
PGND - LX_
5.5V < V+ < 23V, 1mA < I
(Note 3)
I
0µA < I
Internal 6-bit DAC for one converter to ramp from 0V to
full scale (Note 4)
R
R
R
REF
L
L
OSC
OSC
OSC
= V+ (Note 2)
unloaded, no MOSFETs connected
= 0µA
= 60kΩ
= 10kΩ
= 10kΩ
REF
VL
< 50µA
BST1
BST2
= 0mA, PGND = GND, C
L
L
+ 0.3V)
+ 0.3V)
+ 0.3V)
+ 0.3V)
CONDITIONS
A
= -40°C to +85°C (Note 1), unless otherwise noted.)
ILIM_ = V
R
R
0°C to +85°C
-40°C to +85°C
ILIM_
ILIM_
LOAD
= 100kΩ
= 600kΩ
FB1, FB2, RST, SYNC, EN to GND...........................-0.3V to +6V
VL to GND Short Circuit .............................................Continuous
REF to GND Short Circuit ...........................................Continuous
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
< 50mA
L
24-Pin QSOP (derate 9.4mW/°C above +70°C)...........762mW
REF
= 0.22µF, C
VL
MIN
4.75
1.98
225
540
4.5
4.5
4.1
= 4.7µF (ceramic), R
75
32
84
80
0
A
= +70°C)
+160
1024
TYP
2.00
100
300
100
100
100
600
250
3.5
0.3
4.2
50
64
5
4
MAX
23.0
5.25
2.02
125
375
115
120
660
303
5.5
0.6
4.3
62
10
6
OSC
DC-DC
= 60kΩ,
UNITS
clocks
Steps
kHz
kHz
mA
mA
mV
mV
mV
°C
ns
V
V
V
V