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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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CS5231-3GDPR5 датащи(PDF) 1 Page - Cherry Semiconductor Corporation |
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CS5231-3GDPR5 датащи(HTML) 1 Page - Cherry Semiconductor Corporation |
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1 / 11 page  Features 500mA, 3.3V Linear Regulator with Auxiliary Control CS5231-3 Description Block Diagram 1 1 1. No Connect 2. VIN 3. Gnd 4. VOUT 5. AuxDrv Tab = Gnd A Company ® Rev. 3/31/99 Cherry Semiconductor Corporation 2000 South County Trail, East Greenwich, RI 02818 Tel: (401)885-3600 Fax: (401)885-5786 Email: info@cherry-semi.com Web Site: www.cherry-semi.com Consult factory for other package options. The CS5231-3 combines a three- terminal linear regulator with cir- cuitry to control an external PFET transistor with the intent of manag- ing two input supplies. A 5V sup- ply powers the regulator while an auxiliary 3.3V supply is controlled by the IC. The design has been opti- mized to provide a “glitch-free” transition between the two sup- plies. The CS5231-3 linear regulator pro- vides a fixed 3.3V output @ 500mA with an overall accuracy of ± 2%. The NPN-PNP composite pass tran- sistor provides a low dropout volt- age and requires less supply cur- rent than PNP designs. Full protec- tion including current limit and thermal shutdown is provided. Also designed for low reverse cur- rent, the IC prevents excessive cur- rent from flowing from the output to ground if the regulator input voltage is lower than the output voltage. The CS5231-3 also controls an auxil- iary supply that can provide power to the regulator output when input voltage for the regulator is not available. The AuxDrv auxiliary output is normally pulled up to the regulator input voltage and drives low whenever the input voltage drops below 4.4V (nominal). It is typically used to control a PFET switch that connects a 3.3V auxil- iary supply to the regulator output. The CS5231-3 is available in a 5-lead D2PAK (TO-263) package. Applications include Network Interface Cards (NICs), modem cards and power supplies with multiple input sources. Linear Regulator s 3.3V ± 2% Output Voltage s 3mA Quiescent Current @ 500mA s Fast Transient Response s Current Limit s Thermal Shutdown with Hysteresis s 450µA Reverse Output Current s Fast Transient Response System Power Management s Auxiliary Supply Control − − + Internal Bias Bandgap Reference Thermal Shutdown Current Limit VIN 10kΩ 50kΩ AuxDrv Gnd VIN UV Comparator VREF Error Amp Shutdown VOUT Package Options 5 Lead D2PAK |
Аналогичный номер детали - CS5231-3GDPR5 |
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Аналогичное описание - CS5231-3GDPR5 |
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ссылки URL |
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