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MFG:MAXIM D/C:O9+
Part Number: MAX662A
MFG: MAXIM
D/C: O9+
Description: The MAX662A is a regulated +12V, 30mA-output, chargepump DC-DC converter. It provides the necessary +12V ±5% output to ...
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MAX662A
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General Description
MAX662A General Description
The MAX662A is a regulated +12V, 30mA-output, chargepump DC-DC converter. It provides the necessary +12V ±5% output to program byte-wide flash memories, and requires no inductors to deliver a guaranteed 30mA output from inputs as low as 4.75V. It fits into less than 0.1in2 of board space. The MAX662A is a pin-compatible upgrade to the MAX662, and is recommended for new designs. The MAX662A offers lower quiescent and shutdown currents, and guarantees the output current over all temperature ranges.
The MAX662A is the first charge-pump boost converter to provide a regulated +12V output. It requires only a few inexpensive capacitors, and the entire circuit is completely surface-mountable.
A logic-controlled shutdown pin that interfaces directly with microprocessors reduces the supply current to only 0.5A. The MAX662A comes in 8-pin narrow SO and DIP packages.
For higher-current flash memory programming solutions, refer to the data sheets for the MAX734 (120mA output current, guaranteed) and MAX732 (200mA output current, guaranteed) PWM, switch-mode DC-DC converters. Or, refer to the MAX761 data sheet for a 150mA, PFM switch-mode DC-DC converter that operates from inputs as low as 2V.
MAX662A Maximum Ratings
VCC to GND ...............................................................-0.3V to 6V
SHDN..........................................................-0.3V to (VCC + 0.3V)
IOUT Continuous.................................................................50mA
Continuous Power Dissipation (TA = +70°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
Operating Temperature Ranges
MAX662AC_A ....................................................0°C to +70°C
MAX662AE_A .................................................-40°C to +85°C
MAX662AMJA................................................-55°C to +125°C
Storage Temperature Range .......................-65°C to +160°C
Lead Temperature (soldering, 10sec) .........................+300°C
SHDN..........................................................-0.3V to (VCC + 0.3V)
IOUT Continuous.................................................................50mA
Continuous Power Dissipation (TA = +70°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
Operating Temperature Ranges
MAX662AC_A ....................................................0°C to +70°C
MAX662AE_A .................................................-40°C to +85°C
MAX662AMJA................................................-55°C to +125°C
Storage Temperature Range .......................-65°C to +160°C
Lead Temperature (soldering, 10sec) .........................+300°C
MAX662A Features
© Regulated +12V ±5% Output Voltage
© 4.5V to 5.5V Supply Voltage Range
© Fits in 0.1in2
© Guaranteed 30mA Output
© No Inductor-Uses Only 4 Capacitors
© 185A Quiescent Current
© Logic-Controlled 0.5A Shutdown
© 8-Pin Narrow SO and DIP Packages
© 4.5V to 5.5V Supply Voltage Range
© Fits in 0.1in2
© Guaranteed 30mA Output
© No Inductor-Uses Only 4 Capacitors
© 185A Quiescent Current
© Logic-Controlled 0.5A Shutdown
© 8-Pin Narrow SO and DIP Packages
MAX662A Typical Application
+12V Flash Memory Programming Supplies
Compact +12V Op-Amp Supplies
Switching MOSFETs in Low-Voltage Systems
Dual-Output +12V and +20V Supplies
Compact +12V Op-Amp Supplies
Switching MOSFETs in Low-Voltage Systems
Dual-Output +12V and +20V Supplies
MAX662A Connection Diagram
MAX662A
PDF/DataSheet Download
- Datasheet: MAX662A
- File Size: 77275 KB
- Manufacturer: MAXIM [Maxim Integrated Products]
- Click here to Download
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