Purchase MAX1910, In-stock MAX1910 From SeekIC.
Part Number: MAX1910
Description: The MAX1910/MAX1912 power LEDs with a regulated output voltage or current (up to 120mA) from an unregu...
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MAX1910
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DataSheet
General Description
MAX1910 General Description
The MAX1910/MAX1912 power LEDs with a regulated output voltage or current (up to 120mA) from an unregulated input supply (2.7V to 5.3V). These are complete DC-DC converters requiring only four small ceramic capacitors and no inductors. Input ripple is minimized by a unique regulation scheme that maintains a fixed 750kHz switching frequency over a wide load range. Also included are logic-level shutdown and soft-start to reduce input current surges at startup.
The MAX1910 has two automatically selected operating modes: 1.5x and 2x. 1.5x mode improves efficiency at higher input voltages, while 2x mode maintains regulation at lower input voltages. The MAX1912 operates only in 1.5x mode.
The MAX1910 and the MAX1912 are available in a space-saving 10-pin µMAX package.
MAX1910 Maximum Ratings
IN1, IN2, OUT, SHDN, SET to GND ..............-0.3V to +6V
C1-, C2-, to GND...................................................-0.3V, VIN + 1V
C1+, C2+ to GND...........-0.3V, greater of VOUT + 1V or VIN + 1V
OUT Short-Circuit to GND ..........................................Continuous
Continuous Power Dissipation (TA = +70°C)
10-Pin µMAX (derate 5.6 mW/°C above +70°C) ...........444mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................ +300°C
C1-, C2-, to GND...................................................-0.3V, VIN + 1V
C1+, C2+ to GND...........-0.3V, greater of VOUT + 1V or VIN + 1V
OUT Short-Circuit to GND ..........................................Continuous
Continuous Power Dissipation (TA = +70°C)
10-Pin µMAX (derate 5.6 mW/°C above +70°C) ...........444mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................ +300°C
MAX1910 Features
♦ High-Efficiency 1.5x/2x Charge Pumps
♦ Low Input Ripple with 750kHz Operation
♦ 200mV Current-Sense Threshold Reduces Power Loss
♦ Current- or Voltage-Regulated Charge Pump
♦ Up to 120mA Output Current
♦ No Inductors Required
♦ Small Ceramic Capacitors
♦ Regulated ±5% LED Current
♦ Load Disconnected in Shutdown
♦ 1µA Shutdown Current
♦ Small 10-Pin µMAX Package
♦ Low Input Ripple with 750kHz Operation
♦ 200mV Current-Sense Threshold Reduces Power Loss
♦ Current- or Voltage-Regulated Charge Pump
♦ Up to 120mA Output Current
♦ No Inductors Required
♦ Small Ceramic Capacitors
♦ Regulated ±5% LED Current
♦ Load Disconnected in Shutdown
♦ 1µA Shutdown Current
♦ Small 10-Pin µMAX Package
MAX1910 Typical Application
White LED Backlighting
Cellular Phones
PDAs
Digital Still Cameras
MP3 Players
Backup-Battery Boost Converters
Cellular Phones
PDAs
Digital Still Cameras
MP3 Players
Backup-Battery Boost Converters
MAX1910 Connection Diagram
MAX1910
PDF/DataSheet Download
- Datasheet: MAX1910
- File Size: 791282 KB
- Manufacturer: MAXIM [Maxim Integrated Products]
- Click here to Download
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