The MAX8723 is a high-efficiency, switch-mode, stepdown
regulator with a 14V internal power switch. With only
a few external passive components, this low-cost regulator
can generate a fixed 3.3V or adjustable DC output voltage
of 2.0V to 3.6V (dual mode) from a 6V to 13.2V DC source.
The 13.2V input voltage range makes this part ideal for
LCD displays, point-of-load regulators, and other 8/12V-powered
industrial equipment applications.
The MAX8723 can deliver up to 2A. It features an internal
power MOSFET, a built-in bootstrap diode for its
MOSFET driver, and an interface for an external synchronous
rectifier MOSFET drive to replace the
Schottky diode and improve efficiency. Its fixed-frequency
PWM/skip-mode operation and current-mode
control architecture provide fast load-transient
response without compensation. The switching frequency
is a pin-selectable 500kHz, 1MHz, or 1.5MHz,
minimizing the size of external components.
The MAX8723 has built-in soft-start, current-limit, thermal-
shutdown, and timer-delayed output-fault shutdown
functions. The soft-start function limits inrush current
during startup, avoiding transients that can trigger the
front-end protection circuits and lock up the system.
The current limit, thermal-shutdown, and timer-delayed
output-fault shutdown functions protect the power supply
against fault conditions.
The MAX8723 also includes a linear regulator (VL), which
provides a fixed 5V output (25mA) to support small external
loads. The reference output is high-precision (2V
±%) and can also supply small external load currents.
The MAX8723 is available in the 16-pin, 4mm x 4mm,
TQFN package.
주요기능
애플리케이션/용도
6V to 13.2V input supply range
Integrated 14V 2A n-channel MOSFET switch
Preset 1.5% accurate 3.3V fixed-output voltage or
2.0V to 3.6V adjustable output (Dual Mode)
Current-mode PWM operation
Frequency-selectable 500kHz/1MHz/1.5MHz
Internal 5V linear regulator supports up to 25mA
external load
2V precision reference (1%)
Integrated bootstrap diode for high-side MOSFET drive
필요한 것을 찾지 못하셨나요?
Maxim 애플리케이션 엔지니어에게 문의하십시오. 부품을 찾는데 필요한 전문가의 도움이 보통 업무일 1일 이내에 제공됩니다.
부품번호 suffix: T 또는 T&R = 테잎 앤 릴,
+ = RoHS/lead-free,
# = RoHS/lead 예외.추가 정보: 전체 데이터 시트 또는 부품번호 규칙
*일부 패키지는 크기 편차(variation)를 가지며 이 값은 도면 상에 제시되어 있습니다. “패키지 코드/편차”는 해당 제품이 사용하고 있는 편차를 보여줍니다. 부품번호 suffix에 "+", "#", "-"는 RoHS 준수 상태를 나타냅니다. 패키지 도면에 suffix 문자는 다를 수 있습니다.
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