MAX786CAI+T Maxim Integrated Products, MAX786CAI+T Datasheet - Page 2

• Manufacturer Part Number: MAX786CAI+T
• Description: IC CNTRLR PWR SUP DL 28SSOP
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX786CAI+T

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 3.3V, 5V
• Current - Output: 3A
• Frequency - Switching: 200kHz, 300kHz
• Voltage - Input: 5.5 ~ 30 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 28-SSOP
• Power - Output: 762mW
• Output Voltage: 3.3 V, 3.45 V, 3.6 V
• Input Voltage: 5.5 V to 30 V
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS
(V+ = 15V, GND = PGND = 0V, I
T
Dual-Output Power-Supply
Controller for Notebook Computers
ABSOLUTE MAXIMUM RATINGS
V+ to GND................................................................-0.3V to 36V
PGND to GND .......................................................................±2V
VL to GND ..................................................................-0.3V to 7V
BST3, BST5 to GND .................................................-0.3V to 36V
LX3 to BST3 ...............................................................-7V to 0.3V
LX5 to BST5 ...............................................................-7V to 0.3V
Inputs/Outputs to GND
VH to GND ...............................................................-0.3V to 20V
Q1, Q2 to GND ............................................-0.3V to (VH + 0.3V)
DL3, DL5 to PGND .......................................-0.3V to (VL + 0.3V)
2
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.
Input Supply Range
FB5 Output Voltage
FB3 Output Voltage
A
Load Regulation
Line Regulation
Current-Limit Voltage
SS3/SS5 Source Current
SS3/SS5 Fault Sink Current
VL Output Voltage
VL Fault Lockout Voltage
VL/FB5 Switchover Voltage
REF Output Voltage
REF Fault Lockout Voltage
REF Load Regulation
V+ Shutdown Current
V+ Standby Current
Quiescent Power Consumption
(both PWM controllers on)
V+ Off Current
D1, D2 Trip Voltage
D1, D2 Input Current
3.3V AND 5V STEP-DOWN CONTROLLERS
INTERNAL REGULATOR AND REFERENCE
COMPARATORS
(D1, D2, SHDN, ON5, REF, SS5, CS5,
FB5, SYNC, CS3,FB3, SS3, ON3) ............-0.3V to (VL + 0.3V)
= T
________________________________________________________________________________________________
MIN
PARAMETER
to T
MAX
, unless otherwise noted.)
VL
= I
0mV < (CS5-FB5) < 70mV, 6V < V + < 30V
(includes load and line regulation)
0mV < (CS3-FB3) < 70mV, 6V < V + < 30V
(includes load and line regulation)
Either controller (CS_ -FB_ = 0mV to 70mV)
Either controller (V+ = 6V to 30V)
CS3-FB3 or CS5-FB5
ON5 = ON3 = 0V, 5.5V < V+ < 30V, 0mA < I
Falling edge, hysteresis = 1%
Rising edge of FB5, hysteresis = 1%
No external load (Note 1)
Falling edge
0mA < I
–
S
D1 = D2 = ON3 = ON5 = 0V, V+ = 30V
D1 = D2 = 0V, FB5 = CS5 = 5.25V,
FB3 = CS3 = 3.5V
FB5 = CS5 = 5.25V, VL switched over to FB5
Falling edge, hysteresis = 1%
D1 = D2 = 0V, 5V
—
H
REF
—
D
—
N
–
= 0mA, SHDN = ON3 = ON5 = 5V, other digital input levels are 0V or +5V,
= D1 = D2 = ON3 = ON5 = 0V, V+ = 30V
L
< 5mA (Note 2)
CONDITIONS
DH3 to LX3 ..............................................-0.3V to (BST3 + 0.3V)
DH5 to LX5 ..............................................-0.3V to (BST5 + 0.3V)
REF, VL Short to GND................................................Momentary
REF Current ........................................................................20mA
VL Current ..........................................................................50mA
Continuous Power Dissipation (T
Operating Temperature Ranges
Lead Temperature (soldering, 10sec) ............................+300°C
SSOP (derate 9.52mW/°C above +70°C)....................762mW
MAX786CAI/MAX786_CAI .................................0°C to +70°C
MAX786EAI/MAX786_EAI ...............................-40°C to +85°C
L
MAX786
MAX786R
MAX786S
< 25mA
MIN
4.80
3.17
3.32
3.46
3.24
1.61
5.5
2.5
4.5
3.6
4.2
2.4
80
2
A
= +70°C)
TYP
5.08
3.35
3.50
3.65
0.03
100
2.5
4.0
5.5
30
25
70
30
MAX
±100
5.20
3.46
3.60
3.75
3.36
1.69
120
120
6.5
5.5
4.2
4.7
3.2
8.6
30
75
40
60
UNITS
%/V
mW
mA
mV
mV
µA
µA
µA
µA
nA
%
V
V
V
V
V
V
V
V
V