MAX1634CAI+ Maxim Integrated Products, MAX1634CAI+ Datasheet - Page 3

• Manufacturer Part Number: MAX1634CAI+
• Description: IC PS CTRLR NOTEBOOK 28-SSOP
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX1634CAI+

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 3.3V, 5V, Adj
• Current - Output: 4A
• Frequency - Switching: 200kHz, 300kHz
• Voltage - Input: 4.2 ~ 30 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 28-SSOP
• Power - Output: 762mW
• Output Voltage: 2.5 V to 5.5 V, 3.3 V, 5 V
• Input Voltage: 4.2 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 (continued)
(V+ = 15V, both PWMs on, SYNC = VL, VL load = 0mA, REF load = 0mA, SKIP = 0V, T
Typical values are at T
FLYBACK CONTROLLER
12V LINEAR REGULATOR (Note 3)
INTERNAL REGULATOR AND REFERENCE
SYNC Input High Pulse Width
SYNC Input Low Pulse Width
SYNC Rise/Fall Time
SYNC Input Frequency Range
Current-Sense Input Leakage Current
V
SECFB Regulation Threshold
DL Pulse Width
V
V
V
12OUT Output Voltage
12OUT Current Limit
Quiescent V
VL Output Voltage
VL Undervoltage Lockout
Fault Threshold
VL Switchover Threshold
REF Output Voltage
REF Load Regulation
REF Sink Current
REF Fault Lockout Voltage
V+ Operating Supply Current
V+ Standby Supply Current
V+ Standby Supply Current
in Dropout
V+ Shutdown Supply Current
Quiescent Power Consumption
DD
DD
DD
DD
Regulation Threshold
Shunt Threshold
Shunt Sink Current
Leakage Current
PARAMETER
DD
Current
_______________________________________________________________________________________
A
= +25°C.)
Multi-Output, Low-Noise Power-Supply
Controllers for Notebook Computers
Not tested
Not tested
Not tested
V+ = VL = 0V,
CSL3 = CSH3 = CSL5 = CSH5 = 5.5V
Falling edge (Note 3)
Falling edge (MAX1631/MAX1634)
V
Rising edge, hysteresis = 1% (Note 3)
V
V
13V < V
12OUT forced to 11V, V
V
SHDN = V+, RUN/ON3 = TIME/ON5 = 0V,
5.3V < V+ < 30V, 0mA < I
Falling edge, hysteresis = 1%
Rising edge of CSL5, hysteresis = 1%
No external load (Note 5)
0µA < I
0mA < I
Falling edge
VL switched over to CSL5, 5V SMPS on
V+ = 5.5V to 30V, both SMPSs off,
includes current into SHDN
V+ = 4.2V to 5.5V, both SMPSs off,
includes current into SHDN
V+ = 4V to 24V, SHDN = 0V
Both SMPSs enabled, FB3 = FB5 = 0V,
CSL3 = CSH3 = 3.5V,
CSL5 = CSH5 = 5.3V
DD
DD
DD
DD
< 13V or SECFB < 2.44V
= 20V (Note 3)
= 5V, off mode (Notes 3, 4)
= 18V, run mode, no 12OUT load
LOAD
DD
LOAD
< 18V, 0mA < I
< 50µA
< 5mA
CONDITIONS
DD
LOAD
LOAD
= 13V
< 50mA
< 120mA
(Note 3)
MAX1631/
MAX1634
A
= T
MIN
11.65
2.44
2.45
MIN
200
200
240
4.7
3.5
4.2
1.8
13
18
10
10
to T
MAX
TYP
0.01
12.1
150
, unless otherwise noted.
3.6
4.5
2.5
2.5
1.5
50
30
50
1
5
4
12.50
100.0
MAX
2.60
2.55
12.5
200
350
100
200
5.1
3.7
4.7
2.4
10
14
20
30
50
60
10
4
4
UNITS
kHz
mW
mA
mA
mV
µA
µA
µA
µA
µA
µA
µA
µA
ns
ns
ns
µs
V
V
V
V
V
V
V
V
V
3