MAX8716 Datasheet
Part Number |
MAX8716 |
Manufacturers |
Maxim Integrated Products |
Logo |
|
Description |
Dual Power-Supply Controller |
Datasheet |
MAX8716 Datasheet (PDF) |
19-3569; Rev 2; 4/07 EVAALVUAAILTAIOBNLEKIT
Interleaved High-Efficiency, Dual Power-Supply Controllers for Notebook Computers
MAX8716/MAX8717/MAX8756/MAX8757
General Description
The MAX8716/MAX8717/MAX8756/MAX8757 are dual, step-down, interleaved, fixed-frequency, switch-mode power-supply (SMPS) controllers with synchronous rectification. The MAX8716/MAX8717/MAX8756/MAX8757 are intended for main (5V/3.3V) power generation, while the MAX8756 is optimized for I/O power rails in batterypowered systems.
Fixed-frequency operation with optimal interleaving minimizes input ripple current from the lowest input voltages up to the 26V maximum input. Optimal 40/60 interleaving allows the input voltage to go down to 8.3V before duty-cycle overlap occurs in 5V/3.3V applications, compared to 180° out-of-phase regulators where the dutycycle overlap occurs when the input drops below 10V.
Accurate output current limit is achieved using a sense resistor. Alternatively, power dissipation can be reduced.
Part Number |
MAX8719 |
Manufacturers |
Maxim Integrated Products |
Logo |
|
Description |
(MAX8718 / MAX8719) High-Voltage / Low-Power Linear Regulators for Notebook Computers |
Datasheet |
MAX8719 Datasheet (PDF) |
19-3495; Rev 0; 11/04
High-Voltage, Low-Power Linear Regulators for Notebook Computers
General Description
The MAX8718/MAX8719 are micropower, 8-pin TDFN linear regulators that supply always-on, keep-alive power to CMOS RAM, real-time clocks (RTC), and microcontrollers in systems with high-voltage batteries. The circuits consist of a 100mA linear regulator and a power-good comparator (PGOOD) with fixed-output delay. Key features include wide input voltage range, low-dropout voltage, and low-quiescent supply current. Despite a miserly 25µA (max) no-load quiescent current, the MAX8718/MAX8719 have good line- and loadtransient response and excellent AC power-supply rejection. They provide a cl.
Part Number |
MAX8718 |
Manufacturers |
Maxim Integrated Products |
Logo |
|
Description |
(MAX8718 / MAX8719) High-Voltage / Low-Power Linear Regulators for Notebook Computers |
Datasheet |
MAX8718 Datasheet (PDF) |
19-3495; Rev 0; 11/04
High-Voltage, Low-Power Linear Regulators for Notebook Computers
General Description
The MAX8718/MAX8719 are micropower, 8-pin TDFN linear regulators that supply always-on, keep-alive power to CMOS RAM, real-time clocks (RTC), and microcontrollers in systems with high-voltage batteries. The circuits consist of a 100mA linear regulator and a power-good comparator (PGOOD) with fixed-output delay. Key features include wide input voltage range, low-dropout voltage, and low-quiescent supply current. Despite a miserly 25µA (max) no-load quiescent current, the MAX8718/MAX8719 have good line- and loadtransient response and excellent AC power-supply rejection. They provide a cl.
Part Number |
MAX8717 |
Manufacturers |
Maxim Integrated Products |
Logo |
|
Description |
Dual Power-Supply Controller |
Datasheet |
MAX8717 Datasheet (PDF) |
19-3569; Rev 2; 4/07 EVAALVUAAILTAIOBNLEKIT
Interleaved High-Efficiency, Dual Power-Supply Controllers for Notebook Computers
MAX8716/MAX8717/MAX8756/MAX8757
General Description
The MAX8716/MAX8717/MAX8756/MAX8757 are dual, step-down, interleaved, fixed-frequency, switch-mode power-supply (SMPS) controllers with synchronous rectification. The MAX8716/MAX8717/MAX8756/MAX8757 are intended for main (5V/3.3V) power generation, while the MAX8756 is optimized for I/O power rails in batterypowered systems.
Fixed-frequency operation with optimal interleaving minimizes input ripple current from the lowest input voltages up to the 26V maximum input. Optimal 40/60 interleaving allows the input voltag.
Part Number |
MAX8715 |
Manufacturers |
Maxim Integrated Products |
Logo |
|
Description |
Low-Noise Step-Up DC-DC Converters |
Datasheet |
MAX8715 Datasheet (PDF) |
19-1563; Rev 3; 9/05
KIT ATION EVALU LE B A IL A AV
www.DataSheet4U.com
Low-Noise Step-Up DC-DC Converters
General Description Features
♦ 90% Efficiency ♦ Adjustable Output from VIN to 12V ♦ 1.6A, 0.21Ω, 14V Power MOSFET (MAX1790) ♦ 2.4A, 0.15Ω, 14V Power MOSFET (MAX8715) ♦ +2.6V to +5.5V Input Range ♦ Pin-Selectable 640kHz or 1.2MHz Switching Frequency ♦ 0.1µA Shutdown Current ♦ Programmable Soft-Start ♦ Small 8-Pin µMAX Package
MAX1790/MAX8715
The MAX1790/MAX8715 boost converters incorporate high-performance (at 1.2MHz), current-mode, fixed-frequency, pulse-width modulation (PWM) circuitry with a built-in 0.21Ω/0.15Ω n-channel MOSFET to provide a highly efficient regulator with fast r.
Dual Power-Supply Controller
19-3569; Rev 2; 4/07 EVAALVUAAILTAIOBNLEKIT
Interleaved High-Efficiency, Dual Power-Supply Controllers for Notebook Computers
MAX8716/MAX8717/MAX8756/MAX8757
General Description
The MAX8716/MAX8717/MAX8756/MAX8757 are dual, step-down, interleaved, fixed-frequency, switch-mode power-supply (SMPS) controllers with synchronous rectification. The MAX8716/MAX8717/MAX8756/MAX8757 are intended for main (5V/3.3V) power generation, while the MAX8756 is optimized for I/O power rails in batterypowered systems.
Fixed-frequency operation with optimal interleaving minimizes input ripple current from the lowest input voltages up to the 26V maximum input. Optimal 40/60 interleaving allows the input voltage to go down to 8.3V before duty-cycle overlap occurs in 5V/3.3V applications, compared to 180° out-of-phase regulators where the dutycycle overlap occurs when the input drops below 10V.
Accurate output current limit is achieved using a sense resistor. Alternatively, power dissipation can be reduced using lossless inductor current sensing. Independent ON/OFF controls and power-good signals allow flexible power sequencing. Soft-start reduces inrush current, while soft-stop gradually ramps the output voltage down preventing negative voltage dips.
A low-noise mode maintains high light-load efficiency while keeping the switching frequency out of the audible range.
The MAX8716 is available in a 24-pin thin QFN package, and the MAX8717/MAX8756/MAX8757 are available in a 28-pin thin QFN package.
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