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 response.
High switching frequency (640kHz or 1.2MHz selectable)
allows easy filtering and faster loop performance. An
external compensation pin provides the user flexibility in
determining loop dynamics, allowing the use of small, low
equivalent-series-resistance (ESR) ceramic output capacitors.
The device can produce an output voltage as high as
12V from an input as low as 2.6V.
Soft-start is programmed with an external capacitor, which
sets the input-current ramp rate. In shutdown mode, current
consumption is reduced to 0.1µA. The MAX1790/
MAX8715 are available in a space-saving 8-pin µMAX®
package. The ultra-small package and high switching frequency
allow the total solution to be less than 1.1mm high.
µMAX is a registered trademark of Maxim Integrated Products,
Inc.
关键特性
应用/使用
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
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
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