DatasheetsPDF.com

MAX5067 Dataheets PDF



Part Number MAX5067
Manufacturers Maxim Integrated Products
Logo Maxim Integrated Products
Description (MAX5065 / MAX5067) Average-Current-Mode Controllers
Datasheet MAX5067 DatasheetMAX5067 Datasheet (PDF)

www.DataSheet4U.com 19-3035; Rev 1; 11/03 Dual-Phase, +0.6V to +3.3V Output Parallelable, Average-Current-Mode Controllers General Description The MAX5065/MAX5067 dual-phase, PWM controllers provide high-output-current capability in a compact package with a minimum number of external components. The MAX5065/MAX5067 utilize a dual-phase, average-current-mode control that enables optimal use of low RDS(ON) MOSFETs, eliminating the need for external heatsinks even when delivering high output curr.

  MAX5067   MAX5067



Document
www.DataSheet4U.com 19-3035; Rev 1; 11/03 Dual-Phase, +0.6V to +3.3V Output Parallelable, Average-Current-Mode Controllers General Description The MAX5065/MAX5067 dual-phase, PWM controllers provide high-output-current capability in a compact package with a minimum number of external components. The MAX5065/MAX5067 utilize a dual-phase, average-current-mode control that enables optimal use of low RDS(ON) MOSFETs, eliminating the need for external heatsinks even when delivering high output currents. Differential sensing enables accurate control of the output voltage, while adaptive voltage positioning provides optimum transient response. An internal regulator enables operation with input voltage ranges of +4.75V to +5.5V or +8V to +28V. The high switching frequency, up to 500kHz per phase, and dual-phase operation allow the use of low-output inductor values and input capacitor values. This accommodates the use of PC boardembedded planar magnetics achieving superior reliability, current sharing, thermal management, compact size, and low system cost. The MAX5065/MAX5067 also feature a clock input (CLKIN) for synchronization to an external clock, and a clock output (CLKOUT) with programmable phase delay (relative to CLKIN) for paralleling multiple phases. The MAX5065/MAX5067 also limit the reverse current if the bus voltage becomes higher than the regulated output voltage. These devices are specifically designed to limit current sinking when multiple power-supply modules are paralleled. The MAX5065 offers an adjustable +0.6V to +3.3V output voltage. The MAX5067 output voltage is adjustable from +0.8V to +3.3V and features an overvoltage protection and a power-good output signal. The MAX5065/MAX5067 operate over the extended temperature range (-40°C to +85°C). The MAX5065 is available in a 28-pin SSOP package. The MAX5067 is available in a 44-pin thin QFN package. Refer to the MAX5037A data sheet for a VRM 9.0/VRM 9.1-compatible, VID-controlled output voltage controller in a 44-pin QFN package. Features o +4.75V to +5.5V or +8V to +28V Input Voltage Range o Adjustable VOUT +0.6V to +3.3V (MAX5065) +0.8V to +3.3V (MAX5067) o Up to 60A Output Current o Internal Voltage Regulator for a +12V or +24V Power Bus o Programmable Adaptive Output Voltage Positioning o True Differential Remote Output Sensing o Out-of-Phase Controllers Reduce Input Capacitance Requirement and Distribute Power Dissipation o Average-Current-Mode Control Superior Current Sharing Between Individual Phases and Paralleled Modules Accurate Current Limit Eliminates MOSFET and Inductor Derating o Limits Reverse-Current Sinking in Paralleled Modules o Integrated 4A Gate Drivers o Selectable Fixed Frequency 250kHz or 500kHz Per Phase (Up to 1MHz for Two Phases) o External Frequency Synchronization from 125kHz to 600kHz o Internal PLL with Clock Output for Paralleling Multiple DC-DC Converters o Thermal Protection o 28-Pin SSOP Package (MAX5065) o 44-Pin Thin QFN Package (MAX5067) MAX5065/MAX5067 Applications Servers and Workstations Point-of-Load High-Current/High-Density Telecom DC-DC Regulators Networking Systems Large-Memory Arrays RAID Systems High-End Desktop Computers Ordering Information PART MAX5065EAI MAX5067ETH TEMP RANGE -40°C to +85°C -40°C to +85°C PIN-PACKAGE 28 SSOP 44 Thin QFN Selector Guide and Pin Configurations appear at end of data sheet. ________________________________________________________________Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Dual-Phase, +0.6V to +3.3V Output Parallelable, Average-Current-Mode Controllers MAX5065/MAX5067 ABSOLUTE MAXIMUM RATINGS IN to SGND.............................................................-0.3V to +30V BST_ to SGND ........................................................-0.3V to +35V DH_ to LX_ .................................-0.3V to [(VBST_ - VLX_) + 0.3V] DL_ to PGND ..............................................-0.3V to (VCC + 0.3V) BST_ to LX_ ..............................................................-0.3V to +6V VCC to SGND............................................................-0.3V to +6V VCC, VDD to PGND ...................................................-0.3V to +6V SGND to PGND .....................................................-0.3V to +0.3V All Other Pins to SGND...............................-0.3V to (VCC + 0.3V) Continuous Power Dissipation (TA = +70°C) 28-Pin SSOP (derate 9.5mW/°C above +70°C) ............762mW 44-Pin Thin QFN (derate 27.0mW/°C above+70°C) ...2162mW Operating Temperature Range ...........................-40°C to +85°C Maximum Junction Temperature .....................................+150°C Storage Temperature Range .............................-60°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C Stresses beyond those listed under “Absolute Maximum Ratings” may caus.


MAX5065 MAX5067 MC145828B


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site.
(Privacy Policy & Contact)