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DESCRIPTION
The A7501 Series are VFM Step-Up DC-DC ICs with ultra ow supply current by CMOS process and suitable for use with battery-powered instruments.
The A7501 IC consists of and oscillator, a VFM control circuit, a driver transistor (LX switch), a reference voltage unit, and error amplifier, resistors for voltage detection, and a LX switch protection circuit.
A low ripple and high efficiency step-up DC-DC converter can be constructed of this A7501 IC with only three external components. A protection circuit turns off the built-in MOSFET when the voltage at the CONT pin exceeds the limit to prevent it from being damaged. A7501 with a fixed duty ratio of 75 (Lower Output Voltage) or 88 (Higher Output Voltage).
A7501 is available in SOT-23, SOT-25 and SOT89-3 packages.
FEATURES
? Minimal Number of External Components, Only an Inductor (AiT-WSS0703-220M), a Diode (AiT-SM140A), and a Capacitor.
? Ultra Low Input Current: 6.5μA at no load
? 1.8V to 5.0V Output Voltage
? ±2 High Output Voltage Accuracy
? Low Ripple and Low Noise
? Low Start-Up Voltage, 0.9V at 1mA
? Duty ratio: 77 Built-in fixed-type PFM controller
? Available in SOT-23, SOT-25 and SOT89-3 packages
APPLICATION
? Power Source for Battery-Powered Equipment
? Power Source for Camera, Camcorder, VCT, PDA, Pager, Electronic Data Bank, Hand-Held Communication Equipment and Audio Equipment.
? Power Source for Applications which require higher voltage than that of batteries used in the appliances.
供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
---|---|---|---|---|---|---|---|
TOKO |
15+ROHS |
SMD |
92680 |
一級質(zhì)量保證長期穩(wěn)定提供貨優(yōu)價美 |
詢價 | ||
TOKO |
20+ |
電感器 |
682000 |
電感原裝優(yōu)勢主營型號-可開原型號增稅票 |
詢價 | ||
MINI-CIRCUITS |
24+ |
SMD |
4 |
C02-集成電路(IC) |
詢價 | ||
AIT-IC |
23+ |
A |
11763 |
原裝正品現(xiàn)貨 |
詢價 | ||
CJT |
8 |
詢價 | |||||
CJT |
24+ |
con |
8 |
現(xiàn)貨常備產(chǎn)品原裝可到京北通宇商城查價格https://www.jbchip.com/index |
詢價 | ||
TOKO |
2023+ |
DIP |
8700 |
原裝現(xiàn)貨 |
詢價 | ||
AIT-IC |
24+ |
SOT-89-3 |
593428 |
升壓IC原裝現(xiàn)貨.有優(yōu)勢. |
詢價 | ||
AIT-IC |
23+ |
SOT-89-3 |
1126008 |
原廠授權(quán)代理,海外優(yōu)勢訂貨渠道??商峁┐罅繋齑?詳 |
詢價 | ||
Astro |
22+ |
NA |
2265 |
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詢價 |