| 瑭崇窗鍙冩暩(sh霉) | |||
|---|---|---|---|
| 鍝佺墝 | 涓栧井 | 鍨嬭櫉 | AP3301 |
| 灏佽褰㈠紡 | 鍏朵粬 | 灏�(d菐o)闆婚鍨� | 闆欐サ鍨� |
| 灏佽澶栧舰 | 鎵佸钩鍨� | 闆嗘垚搴� | 灏忚(gu墨)妯�(<50) |
| 鍔犲伐瀹氬埗 | 鍚� | 宸ヤ綔闆绘簮闆诲 | 2.5-2.5 |
| 鐢�(ch菐n)鍦� | 娣卞湷 | ||
?Portable media playersDescrriipttiionThe AP3301-AESA is high efficiencysynchronous, PWM step-down DC/DCconverters working under an b voltage rangeof 2.5V to 5.5V. This feature makes theAP3301-AESA suitable for single Li-lonbattery-powered applications. 100% duty cyclecapability extends battery life in portable devices,while the quiescent current is 200渭A with no load,and drops to < 1渭A in shutdown.The internal synchronous switch is desired toincrease efficiency without an external Schottkydiode. The 1.4 MHz fixed switching frequencyallows the using of tiny, low profile inductors andceramic capacitors, which minimized overallsolution footprint.The AP3301-AESA converters are available inthe industry standard SOT-23-5 power packages(or upon request).
Featturress
?Up to 95% Efficiency
Current Mode Operation for Excellent Lineand Load Transient Response
?Low Quiescent Current: 200渭A
Up to 700mA Load Current
?Soft-start
?Low Switch on Resistance RDS(ON), InternalSwitch: 0.35?
?Output Voltage锛�5.5V锝�0.6V
?Automatic PWM/PFM Mode Switching
?No Schottky Diode Required
?1.4MHz Fixed Frequency Switching
?Short-Circuit Protection
?Shutdown Quiescent Current: < 1渭A
?Low Profile SOT-23-5 Package (lead-freepackaging is now available)Applliicattiion
?Digital cameras and MP3
Palmtop computers / PDAs
?Cellular phones
?Wireless handsets and DSL modems
?PC cards
