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MIC2570-1BM Datasheet(PDF) 10 Page - MIC GROUP RECTIFIERS |
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MIC2570-1BM Datasheet(HTML) 10 Page - MIC GROUP RECTIFIERS |
10 / 15 page MIC2570 Micrel, Inc. MIC2570 10 August 2007 GND FB S W MIC2570 S Y NC U1 Micrel MIC2570-2BM U2 Micrel MIC5203-3.3BM4 C1 AVX TPSD107M010R0100 Tantalum ESR = 0.1Ω C2 AVX TPSE227M010R0100 Tantalum ESR = 0.1Ω C3 Sprague 293D105X0016A2W Tantalum D1 Motorola MBRA140T3 L1 Coilcraft DO3316P-473 DCR = 0.12Ω 7 6 1 2 8 IN C1 100µF 10V D1 L1 47µH 2.0V to 3.1V 2 Cells VOUT = 0.22V × (1+R2/R1) U1 MBRA140 C2 220µF 10V MIC5203 IN EN GND OUT VOUT 3.3V/80mA C3 1µF 16V 1 2 3 4 R1 20k 1% R2 374k 1% U2 4.3V Example 6. Low-Noise 3.3V/80mA Regulator GND 5V S W MIC2570 S Y NC U1 Micrel MIC2570-1BM C1 AVX TPSD107M010R0100 Tantalum, ESR = 0.1Ω C2 AVX TPSE227M010R0100 Tantalum, ESR = 0.1Ω C3 AVX TPSE227M010R0100 Tantalum, ESR = 0.1Ω C4 AVX TPSE227M010R0100 Tantalum, ESR = 0.1Ω D1 Motorola MBRA140T3 D2 Motorola MBRA140T3 D3 Motorola MBRA140T3 L1 Coilcraft DO3316P-473, DCR = 1.2Ω 7 4 1 2 8 IN C2 220µF 10V +VOUT 5V/50mA 2.0V to 3.1V 2 Cells C1 100µF 16V D1 MBRA140 L1 47µH C3 220µF 10V D2 MBRA140 D3 MBRA140 C4 220µF 10V –VOUT –4.5V to –5V/50mA – IOUT≤ +IOUT U1 Example 7. ±5V/50mA Regulator GND FB S W MIC2570 S Y NC U1 Micrel MIC2570-2BM C1 AVX TPSD107M010R0100, Tantalum ESR = 0.1Ω C2 AVX TPSE226M035R0300, Tantalum ESR = 0.3Ω C3 AVX TPSE226M035R0300, Tantalum ESR = 0.3Ω D1 Motorola MBRA140T3 D2 Motorola MBRA140T3 L1 Coilcraft DO3316P-473, DCR = 0.12Ω 7 6 1 2 8 IN C3 0.1µF C1 100µF 10V D3 1N4148 L1 47µH R2 549k 1% R1 4.99k 1% 2.0V to 3.1V 2 Cells R3 220k C2 22µF 35V –V OUT –24V/20mA D2 MBRA140 D1 MBRA140 C1 22µF 35V –VOUT = –0.22V × (1+R2/R1) + 0.6V U1 Example 8. –24V/20mA Regulator |
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