MAX879L Maxim Integrated Products, MAX879L Datasheet - Page 2

• Manufacturer Part Number: MAX879L
• Description: (MAX877L - MAX879L) Step-Up & Down DC-DC Converters
• Manufacturer: Maxim Integrated Products

ABSOLUTE MAXIMUM RATINGS
Supply Voltage (IN to PGND).......................................0V to 4.5V
Output Short-Circuit Duration to PGND, AGND (Note 1)....30sec
Voltage Applied to:
AGND to PGND ........................................................-0.3V, +0.3V
Reverse Battery Current....................................................900mA
Low-Voltage Input, 3V/3.3V/5V/
Adjustable Output, Step-Up DC-DC Converters
ELECTRICAL CHARACTERISTICS
(V
typical values are at T
Note 1: The output may be shorted to ground if the package power dissipation is not exceeded.
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
Minimum Start-Up Voltage
Maximum Operating Voltage
Output Voltage
MAX777L/MAX779L
(set to 5V)
(Note 6)
Output Voltage
MAX778L
(Note 6)
Output Voltage Range
(MAX779L)
Efficiency
No-Load Supply Current
Shutdown Supply Current
SHDN Input Current
LX (switch off) .......................................................-0.3V to 4.5V
OUT, SHDN ...........................................................-0.3V to +7V
FB ...........................................................-0.3V to (OUT + 0.3V)
IN
_______________________________________________________________________________________
= +2.5V, I
(switch on) ....................................30sec short to IN or OUT
PARAMETER
LOAD
= 0mA, L = 22µH, C
A
= +25°C, unless otherwise noted.)
I
(Notes 2, 3)
SEL = 0V
SEL = OPEN
(Note 4)
I
I
SHDN = 0V
0V < SHDN < V
V
LOAD
LOAD
LOAD
IN
< SHDN < 5V
< 10mA, T
= 100mA
= 0mA (switch off)
OUT
MAX777LC/
MAX779LC
MAX777LE/
MAX779LE
MAX777LM/
MAX779LM
MAX778LC
MAX778LE
MAX778LM
MAX778LC
MAX778LE
MAX778LM
MAX77_LC, MAX77_LE
MAX77_LM
= 100µF, SHDN and ILIM connected to IN, AGND connected to PGND, T
IN
A
= +25°C (Note 2)
CONDITIONS
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
≤ 30mA, 1.1V ≤ V
≤ 140mA, 1.8V ≤ V
≤ 30mA, 1.2V ≤ V
≤ 130mA, 1.8V ≤ V
≤ 25mA, 1.25V ≤ V
≤ 120mA, 1.8V ≤ V
≤ 50mA, 1.1V ≤ V
≤ 210mA, 1.8V ≤ V
≤ 50mA, 1.2V ≤ V
≤ 200mA, 1.8V ≤ V
≤ 50mA, 1.25V ≤ V
≤ 180mA, 1.8V ≤ V
≤ 50mA, 1.1V ≤ V
≤ 210mA, 1.8V ≤ V
≤ 50mA, 1.2V ≤ V
≤ 200mA, 1.8V ≤ V
≤ 40mA, 1.25V ≤ V
≤ 180mA, 1.8V ≤ V
Continuous Power Dissipation (T
Operating Temperature Ranges:
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
Plastic DIP (derate 9.09mW/°C above +70°C) .............727mW
SO (derate 5.88mW/°C above +70°C) ..........................471mW
CERDIP (derate 8.00mW/°C above +70°C) ..................640mW
MAX77_LC_A .......................................................0°C to +70°C
MAX77_LE_A ....................................................-40°C to +85°C
MAX77_LMJA .................................................-55°C to +125°C
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
≤ 4.5V or
≤ 4.5V or
≤ 3.3V or
≤ 3.3V or
≤ 3V or
≤ 3V or
≤ 4.5V
≤ 4.5V
≤ 4.5V or
≤ 4.5V
≤ 3.3V
≤ 3.3V
≤ 3.3V or
≤ 3.3V
≤ 3V
≤ 3V
≤ 3V or
≤ 3V
A
= +70°C)
4.80
3.17
2.88
MIN
4.5
2.5
5.00
3.30
3.00
TYP
190
82
20
20
15
12
A
= T
MAX
5.20
3.43
3.12
310
100
6.0
30
35
40
MIN
1
to T
UNITS
µA
µA
nA
µA
%
MAX
V
V
V
V
V
,