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MAX1846 Datasheet

Part Number MAX1846
Manufacturers Maxim
Logo Maxim
Description High-Efficiency / Current-Mode / Inverting PWM Controller
Datasheet MAX1846 DatasheetMAX1846 Datasheet (PDF)

19-2091; Rev 0; 8/01 High-Efficiency, Current-Mode, Inverting PWM Controller General Description MAX1846/MAX1847 high-efficiency PWM inverting controllers allow designers to implement compact, lownoise, negative-output DC-DC converters for telecom and networking applications. Both devices operate from +3V to +16.5V input and generate -2V to -200V output. To minimize switching noise, both devices feature a current-mode, constant-frequency PWM control scheme. The operating frequency can be set fr.

  MAX1846   MAX1846






Part Number MAX1848
Manufacturers Maxim
Logo Maxim
Description White LED Step-Up Converter
Datasheet MAX1846 DatasheetMAX1848 Datasheet (PDF)

19-2028; Rev 1; 9/02 White LED Step-Up Converter in SOT23 General Description The MAX1848 drives white LEDs with a constant current to provide backlight in cell phones, PDAs, and other hand-held devices. The step-up converter topology allows series connection of the white LEDs so that the LED currents are identical for uniform brightness. This configuration eliminates the need for ballast resistors and expensive factory calibration. Other benefits include greater simplicity, lower cost, higher .

  MAX1846   MAX1846







Part Number MAX1847
Manufacturers Maxim
Logo Maxim
Description High-Efficiency / Current-Mode / Inverting PWM Controller
Datasheet MAX1846 DatasheetMAX1847 Datasheet (PDF)

19-2091; Rev 0; 8/01 High-Efficiency, Current-Mode, Inverting PWM Controller General Description MAX1846/MAX1847 high-efficiency PWM inverting controllers allow designers to implement compact, lownoise, negative-output DC-DC converters for telecom and networking applications. Both devices operate from +3V to +16.5V input and generate -2V to -200V output. To minimize switching noise, both devices feature a current-mode, constant-frequency PWM control scheme. The operating frequency can be set fr.

  MAX1846   MAX1846







Part Number MAX1845
Manufacturers Maxim
Logo Maxim
Description Dual / High-Efficiency / Step-Down Controller with Accurate Current Limit
Datasheet MAX1846 DatasheetMAX1845 Datasheet (PDF)

19-1955; Rev 2; 1/03 KIT ATION EVALU E L B AVAILA Dual, High-Efficiency, Step-Down Controller with Accurate Current Limit MAX1845 General Description Features o Ultra-High Efficiency o Accurate Current-Limit Option o Quick-PWM™ with 100ns Load-Step Response o 1% VOUT Accuracy over Line and Load o Dual Mode™ Fixed 1.8V/1.5V/Adj or 2.5V/Adj Outputs o Adjustable 1V to 5.5V Output Range o 2V to 28V Battery Input Range o 200/300/420/540kHz Nominal Switching Frequency o Adjustable Overvoltage Protec.

  MAX1846   MAX1846







Part Number MAX1844
Manufacturers Maxim Integrated Products
Logo Maxim Integrated Products
Description High-Speed Step-Down Controller
Datasheet MAX1846 DatasheetMAX1844 Datasheet (PDF)

MAX1844 19-1993; Rev 3; 9/02 EVAALVUAAILTAIOBNLEKIT High-Speed Step-Down Controller with Accurate Current Limit for Notebook Computers General Description The MAX1844 pulse-width modulation (PWM) controller provides high efficiency, excellent transient response, and high DC output accuracy needed for stepping down high-voltage batteries to generate low-voltage CPU core or chipset/RAM supplies in notebook computers. Maxim’s proprietary Quick-PWM™ quick-response, constant-on-time PWM control sch.

  MAX1846   MAX1846







High-Efficiency / Current-Mode / Inverting PWM Controller

19-2091; Rev 0; 8/01 High-Efficiency, Current-Mode, Inverting PWM Controller General Description MAX1846/MAX1847 high-efficiency PWM inverting controllers allow designers to implement compact, lownoise, negative-output DC-DC converters for telecom and networking applications. Both devices operate from +3V to +16.5V input and generate -2V to -200V output. To minimize switching noise, both devices feature a current-mode, constant-frequency PWM control scheme. The operating frequency can be set from 100kHz to 500kHz through a resistor. The MAX1846 is available in an ultra-compact 10-pin µMAX package. Operation at high frequency, compatibility with ceramic capacitors, and inverting topology without transformers allow for a compact design. Compatibility with electrolytic capacitors and flexibility to operate down to 100kHz allow users to minimize the cost of external components. The high-current output drivers are designed to drive a P-channel MOSFET and allow the converter to deliver up to 30W. The MAX1847 features clock synchronization and shutdown functions. The MAX1847 can also be configured to operate as an inverting flyback controller with an Nchannel MOSFET and a transformer to deliver up to 70W. The MAX1847 is available in a 16-pin QSOP package. Current-mode control simplifies compensation and provides good transient response. Accurate current-mode control and over current protection are achieved through low-side current sensing. o 90% Efficiency o +3.0V to +16.5V Input R.


2005-05-06 : M68AW031AL70N6U    M68AW031AL70NS6U    M68AW031AM70MS6U    M68AW031AM70N6U    M68AW031AM70NS6U    M68AW064F    M68AW127    M68AW127B    M68AW128M    M68AW511A   


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