MAX1761EEE Maxim Integrated Products, MAX1761EEE Datasheet - Page 2

• Manufacturer Part Number: MAX1761EEE
• Description: DC/DC Switching Controllers
• Manufacturer: Maxim Integrated Products

Specifications of MAX1761EEE

• Number Of Outputs: 2
• Output Voltage: 2.5 V, 1 V to 5.5 V, 1.8 V
• Input Voltage: 4.5 V to 20 V
• Mounting Style: SMD/SMT
• Package / Case: QSOP-16
• 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 +22V
VL to GND ................................................................-0.3V to +6V
VL to V+ .............................................................................+0.3V
OUT_, ON2 to GND ..................................................-0.3V to +6V
ON1, DH_ to GND ........................................-0.3V to (V+ + 0.3V)
FB_, REF, DL_ to GND.................................-0.3V to (VL + 0.3V)
CS_ to GND .....................................................-2V to (V+ + 0.3V)
REF Short Circuit to GND ...........................................Continuous
Small, Dual, High-Efficiency
Buck Controller for Notebooks
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
(Circuit of Figure 1, V+ = 15V, C
otherwise noted.) (Note 1)
2
PWM CONTROLLERS
Input Voltage Range
DC Output Voltage Accuracy
(Note 3)
Output Voltage Adjust Range
OUT_ Input Resistance
FB_ Input Bias Current
CS_ Input Bias Current
Soft-Start Ramp Time
On-Time (Note 4)
Minimum Off-Time (Note 4)
BIAS AND REFERENCE
Quiescent Supply Current
Shutdown Supply Current
VL Output Voltage
Reference Voltage
Reference Load Regulation
REF Sink Current
REF Fault Lockout Voltage
_______________________________________________________________________________________
PARAMETER
VL
= 4.7µF, C
SYMBOL
V
V
t
I
OUT_
t
V+
OFF
REF
VL
ON
REF
IL
I+
IL
I+
REF
(Note 2)
V+ = 4.5V to 20V,
VL = 4.75V to 5.25V,
ON2 = VL
V
V
Zero to full ILIM
V+ = 10V, V
V
FB1 = FB2 = GND, VL = 5V, V
V
FB1 = FB2 = GND, V
and V
above regulation point
VL = 5V, ON1 = ON2 = GND
VL = 0, 5V
I
V+ = 5V to 20V, no load
I
REF in regulation
Falling edge
Rising edge
= 0.1µF, VL not externally driven unless otherwise noted, T
LOAD
REF
FB_
CS_
OUT2
OUT2
= 0 to 50µA
= 1V, VL = 5V
= 0, VL = 5V
OUT2
= 0 to 25mA, V+ = 5V to 20V
= 1.8V
forced above regulation point
forced
OUT1
CONDITIONS
= 2.5V,
Continuous Power Dissipation
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature.........................................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
OUT1
16-Pin QSOP (derate 8.3mW/°C above +70°C) ......….667mW
OUT1
OUT2
FB_ = OUT_
FB1 = GND
FB2 = GND
VL undriven
VL = 5V
OUT1
and
2.475
1.782
0.99
1.98
MIN
-0.1
661
648
4.5
4.5
80
10
-1
1
1700
TYP
0.60
0.95
0.38
4.65
1.94
160
735
720
400
A
2.5
1.8
1.6
1
5
4
2
= 0°C to +85°C, unless
2.525
1.818
MAX
1.01
1.20
1.70
0.65
4.75
2.02
300
809
792
500
5.5
0.1
20
10
10
1
8
UNITS
mA
mA
mV
kΩ
µA
µA
µA
µA
µA
µs
ns
ns
V
V
V
V
V
V