MAX1953, MAX1954, MAX1957 Low-Cost, High-Frequency, Current-Mode PWM Buck Controllers

The MAX1953 MAX1954 MAX1957 is a family of versatile, economical, synchronous current-mode, pulse-width modulation (PWM) buck controllers. These Step-down controllers are targeted for applications where cost and size are critical.
The MAX1953 operates at a fixed 1MHz switching frequency, thus significantly reducing external component size and cost. Additionally, excellent transient response is obtained using less output capacitance. The MAX1953 operates from low 3V to 5.5V input voltage and CAN supply up to 10A of output current. Selectable current limit is provided to tailor to the external MOSFETs' on-resistance for optimum cost and performance. The output voltage is adjustable from 0.8V to 0.86VIN.
With the MAX1954 the drain-voltage range on the high- side FET is 3V to 13.2V and is independent of the supply voltage. It operates at a fixed 300kHz switching frequency and CAN be used to provide up to 25A of output current with high efficiency. The output voltage is adjustable from 0.8V to 0.86VHSD.
The MAX1957 features a tracking output voltage range of 0.4V to 0.86VIN and is capable of sourcing or sinking current for applications such as DDR bus termination and PowerPC ASIC DSP core supplies. The MAX1957 operates from a 3V to 5.5V input voltage and at a fixed 300kHz switching frequency.
The MAX1953 MAX1954 MAX1957 provide a COMP pin that CAN be pulled low to shut down the converter in addition to providing compensation to the error Amplifier An input undervoltage lockout (UVLO) is provided to ensure proper operation under power-sag conditions to prevent the external Power MOSFETs from overheating. Internal digital soft-start is included to reduce inrush current. The MAX1953 MAX1954 MAX1957 are available in tiny 10-pin MAX packages.
By Maxim Integrated Products
MAX1957 's PackagesMAX1957 's pdf datasheet
MAX1957EUB uMAX
MAX1957EUBT uMAX
MAX1957EUB-T uMAX




MAX1957 Pinout, Pinouts
MAX1957 pinout,Pin out
This is one package pinout of MAX1957,If you need more pinouts please download MAX1957's pdf datasheet.

MAX1957 Application circuits
MAX1957 circuits
This is one application circuit of MAX1957,If you need more circuits,please download MAX1957's pdf datasheet.


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