升壓DC-DC ME2109 一級(jí)代理-熱久久國(guó)產(chǎn)歐美一區(qū)二區(qū)精品129_精品國(guó)產(chǎn)青草久久久久福利
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description：
the me2109 series is a cmosstep-up switching regulator which mainly consists of a referencevoltage source, an oscillation circuit,an error amplifier, a phasecompensation circuit,a pwm/pfm switching control circuit. withan
external low-on-resistance nch power mos,this product is applicableto applications re high efficiency and high outputcurrent.
the me2109 series switches its operation to the pfm control circuitwhose duty ratio is 15 % with to the pwm/pfm switching controlcircuit under a light load and to prevent decline in the efficiencyby ic operation current.
feature：
low voltage operation: start-up isguaranteed from 0.9 v(iout =1 ma )
duty ratio: built-in pwm/pfm switching control circuit 15 to 78 %.
oscillator frequency：300khz
external parts: coil, diode, capacitor, and transistor
output voltage range: 1.5v ~6.5 v
output voltage accuracy：±2%
soft start function: 2 ms.
package：sot-23-5
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