Purchase MAX786, In-stock MAX786 From SeekIC.
Part Number: MAX786
Description: The MAX786 is a system-engineered power-supply controller for notebook computers or similar batterypow...
- Table of contents:
MAX786
-
Suppliers
DataSheet
General Description
MAX786 General Description
The MAX786 is a system-engineered power-supply controller for notebook computers or similar batterypowered equipment. It provides two high-performance step-down (buck) pulse-width modulators (PWMs) for +3.3V and +5V. Other features include dual, low-dropout, micropower linear regulators for CMOS/RTC back-up, and two precision low-batterydetection comparators.
High efficiency (95% at 2A; greater than 80% at loads from 5mA to 3A) is achieved through synchronous rectification and PWM operation at heavy loads, and Idle ModeTM operation at light loads. The MAX786 uses physically small components, thanks to high operating frequencies (300kHz/200kHz) and a new current-mode PWM architecture that allows for output filter capacitors as small as 30F per ampere of load. Line- and loadtransient responses are terrific, with a high 60kHz unitygain crossover frequency allowing output transients to be corrected within four or five clock cycles. Low system cost is achieved through a high level of integration and the use of low-cost, external N-channel MOSFETs.
Other features include low-noise, fixed-frequency PWM operation at moderate to heavy loads, and a synchronizable oscillator for noise-sensitive applications such as electromagnetic pen-based systems and communicating computers. The MAX786 is a monolithic, BiCMOS IC available in fine-pitch, surface-mount SSOP packages.
MAX786 Maximum Ratings
V+ to GND................................................................-0.3V to 36V
PGND to GND ........................................................................±2V
VL to GND ..................................................................-0.3V to 7V
BST3, BST5 to GND ..................................................-0.3V to 36V
LX3 to BST3 ...............................................................-7V to 0.3V
LX5 to BST5 ...............................................................-7V to 0.3V
Inputs/Outputs to GND
(D1, D2, SHDN, ON5, REF, SS5, CS5,
FB5, SYNC, CS3,FB3, SS3, ON3) ...................-0.3V to (VL + 0.3V)
VH to GND ...............................................................-0.3V to 20V
Q1, Q2 to GND .............................................-0.3V to (VH + 0.3V)
DL3, DL5 to PGND.........................................-0.3V to (VL + 0.3V)
DH3 to LX3 ...............................................-0.3V to (BST3 + 0.3V)
DH5 to LX5 ...............................................-0.3V to (BST5 + 0.3V)
REF, VL Short to GND..................................................Momentary
REF Current.........................................................................20mA
VL Current ..........................................................................50mA
Continuous Power Dissipation (TA = +70°C)
SSOP (derate 9.52mW/°C above +70°C)........................762mW
Operating Temperature Ranges
MAX786CAI/MAX786_CAI ......................................0°C to +70°C
MAX786EAI/MAX786_EAI....................................-40°C to +85°C
Lead Temperature (soldering, 10sec) ............................+300°C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
MAX786 Features
` Dual PWM Buck Controllers (+3.3V and +5V)
` Two Precision Comparators or Level Translators
` 95% Efficiency
` 420A Quiescent Current, 70A in Standby (linear regulators alive)
` 25A Shutdown Current (+5V linear alive)
` 5.5V to 30V Input Range
` Small SSOP Package
` Fixed Output Voltages:
3.3V (standard)
3.45V (High-Speed Pentium™)
3.6V (PowerPC™)
` Two Precision Comparators or Level Translators
` 95% Efficiency
` 420A Quiescent Current, 70A in Standby (linear regulators alive)
` 25A Shutdown Current (+5V linear alive)
` 5.5V to 30V Input Range
` Small SSOP Package
` Fixed Output Voltages:
3.3V (standard)
3.45V (High-Speed Pentium™)
3.6V (PowerPC™)
MAX786 Typical Application
· Notebook Computers
· Portable Data Terminals
· Communicating Computers
· Pen-Entry Systems
· Portable Data Terminals
· Communicating Computers
· Pen-Entry Systems
MAX786 Connection Diagram
MAX786
PDF/DataSheet Download
- Datasheet: MAX786
- File Size: 313172 KB
- Manufacturer: MAXIM [Maxim Integrated Products]
- Click here to Download
- ·MAX002
- FILTRONIC [Filtronic Compound Semiconductors]
- Optical Communications - Modulator Driver Amplifier
- 42133 KB
- ·MAX038
- MAXIM [Maxim Integrated Products]
- High-Frequency Waveform Generator
- 207992 KB
- ·MAX038C/D
- MAXIM [Maxim Integrated Products]
- High-Frequency Waveform Generator
- 207992 KB
- ·MAX038CPP
- MAXIM [Maxim Integrated Products]
- High-Frequency Waveform Generator
- 207992 KB
- ·MAX038CWP
- MAXIM [Maxim Integrated Products]
- High-Frequency Waveform Generator
- 207992 KB
- ·MAX038EPP
- MAXIM [Maxim Integrated Products]
- High-Frequency Waveform Generator
- 207992 KB
- ·MAX038EVKIT
- Maxim
- Evaluation Kit for the MAX038
- 106491 KB
- ·MAX038EWP
- MAXIM [Maxim Integrated Products]
- High-Frequency Waveform Generator
- 207992 KB
MAX786 Relative Products
MAX783EBX
The MAX783EBX is one member of the MAX783 family which is designed as the system-engineered power-supply controller. It can be used in notebook computers, portable data terminals, communicating computers and pen-entry systems. Features of the MAX783EBX are:(...
MAX783
The MAX783 is a system-engineered power-supply controller for notebook computers or similar battery-powered equipment. It provides two high-performance step-down (buck) pulsewidth modulators (PWMs) for +3.3V/+5V and dual PCMCIA VPP outputs powered by an inte...
MAX782
The MAX782 is a system-engineered power-supply controller for notebook computers or similar battery-powered equipment. It provides two high-performance step-down (buck) pulse-width modulators (PWMs) for +3.3V and +5V, and dual PCMCIA VPP outputs powered by a...
MAX781
The MAX781 is a system-engineered power-supply controller for subnotebook computers, PDAs, or similar battery-powered equipment. MAX781 provides high-performance, step-down (buck), pulse-width modulated (PWM) control for generating +3.3V and constant-current...
MAX780
The MAX780A provides the power switching and status signals necessary to control two Personal Computer Memory Card International Association (PCMCIA) Release 2.0 card slots. The MAX780A, used in conjunction with a PC Card Interface Digital Controller, forms ...
MAX779L
The MAX777L/MAX778L/MAX779L are pulse-skipping DC-DC converters that step up from low-voltage inputs (1V uaranteed). They require only three external components-an inductor (typically 22H) and two capacitors. The MAX777L delivers a 5V output, the MAX778L gen...
Hotspot Suppliers Product
STK650-313
Price: 10-20 USD
STK650-313, MODULE, Sanyo
ICL7667MJA/883
Price: 6-10 USD
dual monolithic, high-speed driver, 8DIP N, convert TTL level signals, Power MOSFET Driver
MD1802FX
Price: 0.35-1 USD
high voltage, power transistor, NPN, 700V, 57W, Through Hole, 10A, Diffused Collector
SGTL5000XNAA3
Price: 0.95-1.3 USD
Low Power Stereo Codec, 1ADC / 1DAC, Programmable MIC gain, 1.98 V
AT89C51RC2-UM
Price: 3.2-4.7 USD
8-bit, Microcontroller, 16K/ 32K Bytes Flash, QFP, Four 8-bit I/O Port, Dual Data Pointer
ZEN132V230A16LS
Price: 0.18-0.25 USD
POLYZEN 13.2V PPTC/ZENER SMD - ZEN132V230A16LS
ATMEGA128-16AU
Price: 0.58-13.5 USD
low-power, CMOS, 8-bit microcontroller, TQFP
MC34063API
Price: 1-2 USD
monolithic control circuit, DIP, 3.0 V to 40 V, 1.5 A, Low Standby Current, Current Limiting, Outp...
circuit protection board
Price: 20-39 USD
circuit protection board, Memory Cards, Modules, standard
SST39VF1601-70-4C-EKE
Price: 1.5-2 USD
TSOP48, CMOS I/O Compatibility, JEDEC Standard, 40ms, Multi-Purpose Flash Plus
74HCT02D
Price: 0.075-0.092 USD
quad 2-input nor gate, -0.5 to +7 V, SOP, TTL level, high-speed, Si-gate
BTW67-600
Price: 4-5.99 USD
50A SCR, RD91-3, STMicroelectronics, BTW67-600, 600 to 1200 V
