Electronic Components Datasheet Search |
|
MAX1632AEAI Datasheet(PDF) 1 Page - Maxim Integrated Products |
|
MAX1632AEAI Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 29 page 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. ________________General Description The MAX1630A–MAX1635A are buck-topology, step- down, switch-mode, power-supply controllers that gener- ate logic-supply voltages in battery-powered systems. These high-performance, dual-/triple-output devices include on-board power-up sequencing, power-good signaling with delay, digital soft-start, secondary winding control, low-dropout circuitry, internal frequency-com- pensation networks, and automatic bootstrapping. Up to 96% efficiency is achieved through synchronous rectification and Maxim’s proprietary Idle Mode™ control scheme. Efficiency is greater than 80% over a 1000:1 load-current range, which extends battery life in system- suspend or standby mode. Excellent dynamic response corrects output load transients caused by the latest dynamic-clock CPUs within five 300kHz clock cycles. Strong 1A on-board gate drivers ensure fast external n-channel MOSFET switching. These devices feature a logic-controlled and synchroniz- able, fixed-frequency, pulse-width-modulation (PWM) operating mode. This reduces noise and RF interference in sensitive mobile communications and pen-entry appli- cations. Asserting the SKIP pin enables fixed-frequency mode for lowest noise under all load conditions. The MAX1630A–MAX1635A include two PWM regulators, adjustable from 2.5V to 5.5V with fixed 5.0V and 3.3V modes. All these devices include secondary feedback regulation, and the MAX1630A/MAX1632A/MAX1633A/ MAX1635A each contain 12V/120mA linear regulators. The MAX1631A/MAX1634A include a secondary feed- back input (SECFB), plus a control pin (STEER) that selects which PWM (3.3V or 5V) receives the secondary feedback signal. SECFB provides a method for adjusting the secondary winding voltage regulation point with an external resistor-divider, and is intended to aid in creating auxiliary voltages other than fixed 12V. The MAX1630A/MAX1631A/MAX1632A contain internal output overvoltage and undervoltage protection features. The MAX1630A family has improved RF immunity over the MAX1630 family. ________________________Applications Notebook and Subnotebook Computers PDAs and Mobile Communicators Desktop CPU Local DC-DC Converters ____________________________Features ♦ 96% Efficiency ♦ +4.2V to +30V Input Range ♦ 2.5V to 5.5V Dual Adjustable Outputs ♦ Selectable 3.3V and 5V Fixed or Adjustable Outputs (Dual Mode™) ♦ 12V Linear Regulator ♦ Adjustable Secondary Feedback (MAX1631A/MAX1634A) ♦ 5V/50mA Linear Regulator Output ♦ Precision 2.5V Reference Output ♦ Programmable Power-Up Sequencing ♦ Power-Good (RESET) Output ♦ Output Overvoltage Protection (MAX1630A/MAX1631A/MAX1632A) ♦ Output Undervoltage Shutdown (MAX1630A/MAX1631A/MAX1632A) ♦ 200kHz/300kHz Low-Noise, Fixed-Frequency Operation ♦ Low-Dropout, 99% Duty-Factor Operation ♦ 2.5mW Typical Quiescent Power (+12V Input, Both SMPSs On) ♦ 4µA Typical Shutdown Current ♦ 28-Pin SSOP Package Multi-Output, Low-Noise Power-Supply Controllers for Notebook Computers ________________________________________________________________ Maxim Integrated Products 1 5V LINEAR 12V LINEAR POWER-UP SEQUENCE POWER- GOOD 3.3V SMPS 5V SMPS RESET ON/OFF +5V (RTC) +3.3V INPUT +5V +12V ________________Functional Diagram 19-3518; Rev 1; 8/05 PART MAX1630AEAI -40°C to +85°C TEMP RANGE PIN-PACKAGE 28 SSOP EVALUATION KIT AVAILABLE _______________Ordering Information +Denotes lead-free package. Ordering Information continued at end of data sheet. Pin Configurations and Selector Guide appear at end of data sheet. Idle Mode and Dual Mode are trademarks of Maxim Integrated Products, Inc. |
Similar Part No. - MAX1632AEAI |
|
Similar Description - MAX1632AEAI |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |