MAX757CSA+ Maxim Integrated Products, MAX757CSA+ Datasheet - Page 2

• Manufacturer Part Number: MAX757CSA+
• Description: IC DC-DC CONV 8-SOIC
• Manufacturer: Maxim Integrated Products
• Type: Step-Up (Boost)r

Specifications of MAX757CSA+

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 2.7 ~ 5.5 V
• Current - Output: 300mA
• Frequency - Switching: 500kHz
• Voltage - Input: 0.7 ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Power - Output: 471mW
• Output Voltage: 5.5 V
• Output Current: 0.3 mA
• Input Voltage: 5.5 V
• Supply Current: 0.06 A
• Switching Frequency: 500 KHz
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Supply Voltage (OUT to GND) ....................................-0.3V, +7V
Switch Voltage (LX to GND) ........................................-0.3V, +7V
Auxiliary Pin Voltages (SHDN, LBI, LBO, REF,
Reference Current (I
Continuous Power Dissipation (T
ELECTRICAL CHARACTERISTICS
(Circuits of Figure 1 and Typical Operating Circuit, V
3.3V/5V/Adjustable-Output,
Step-Up DC-DC Converters
ABSOLUTE MAXIMUM RATINGS
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.
Note 1: Supply current from the 3.3V output is measured with an ammeter between the 3.3V output and OUT pin. This current
Note 2: Minimum value is production tested. Maximum value is guaranteed by design and is not production tested.
2
Output Voltage
Minimum Start-Up Supply Voltage
Minimum Operating Supply
Voltage (once started)
Battery Quiescent Current
Measured at V
Reference Voltage
Reference-Voltage Regulation
Quiescent Supply Current in
3.3V Mode (Note 1)
Shutdown Quiescent Current
(Note 1)
LBI Input Threshold
LBI Input Hysteresis
LBO Output Voltage Low
LBO Output Leakage Current
SHDN, 3/5 Input Voltage Low
SHDN, 3/5 Input Voltage High
SHDN, 3/5, FB, LBI Input Current
FB Voltage
Output Voltage Range
3/5, FB to GND) ........................................-0.3V, (V
Plastic DIP (derate 9.09mW/°C above +70°C) .............727mW
SO (derate 5.88mW/°C above +70°C) ..........................471mW
_______________________________________________________________________________________
correlates directly with actual battery supply current, but is reduced in value according to the step-up ratio and efficiency.
PARAMETER
IN
in Figure 1
REF
) ....................................................2.5mA
A
= +70°C)
SHDN = 0V, LBI = 1.25V, 3/5 = 3V, V
FB = 1.3V (MAX757 only)
2V < V
I
I
I
FB = 1.3V (MAX757 only)
Output set for 3.3V
No REF load, C
3/5 = 3V, -20µA < REF load < 250µA, C
With falling edge
I
LBO = 5V
LBI = 1.25V, FB = 1.25V, SHDN = 0V or 3V,
3/5 = 0V or 3V
MAX757
MAX757, I
LOAD
LOAD
LOAD
SINK
= 2mA
= 0mA, 3/5 = 3V, LBI = 1.25V, V
= 10mA
= 20mA
IN
< 3V
LOAD
OUT
MAX756, 3/5 = 0V, 0mA < I
MAX756, 3/5 = 3V, 0mA < I
MAX757, V
IN
REF
= 0mA (Note 2)
= 2.5V, I
+ 0.3V)
= 0.1µF
CONDITIONS
LOAD
OUT
= 5V, 0mA < I
= 0mA, T
Operating Temperature Ranges:
Junction Temperature ......................................................+150°C
Storage Temperature Range............................... -65°to +160°C
Lead Temperature (soldering, 10sec) ........................... +300°C
MAX75_C_ _ ........................................................0°C to +70°C
MAX75_E_ _......................................................-40°C to +85°C
OUT
OUT
= 3.47V,
REF
A
= 3.47V,
= T
LOAD
LOAD
LOAD
= 0.22µF
MIN
< 200mA
< 300mA
< 200mA
to T
MAX
, unless otherwise noted.)
3.17
1.23
1.22
1.22
MIN
4.8
4.8
1.6
2.7
TYP
3.30
1.25
1.25
1.25
5.0
5.0
1.1
0.7
0.8
60
20
25
±100
MAX
3.43
1.27
1.28
1.28
5.2
5.2
1.8
2.0
0.4
0.4
5.5
60
40
1
UNITS
mV
µA
µA
µA
µA
nA
%
V
V
V
V
V
V
V
V
V
V