DCDC

DCDC概述

DC/DC转换器分为三类:降压型转换器(BUCK)、升压型转换器(BOOST)以及升降压型转换器(BUCK-BOOST)。目前DC-DC转换器广泛应用于工业控制、视频安防、数码相机、便携式媒体播放器等产品中。

特性

XRP6658
满足低功耗,低纹波,高效率,高性价比的多重要求
外围电路简单,匹配小型化电感及滤波电容

 

典型应用

手持设备,锂电调压 核电压,DDR等低压转换 次级DCDC

系统框图

选型表

品牌 Part Number Iout(Max)(A) Vin(Min)(V) Vin(Max)(V) Iq(mA) Vout(Min)(V) Vout(Max)(V) Switching Frequency(Typ)(kHz) Efficiency Pin/Package Description
品牌 Part No. Number of output Supply Voltage(V) Output Current (A) Output Voltage(V) reference Voltage accuracy(%) Operating temperatur(?C) Operating Frequency(kHz) Package
品牌 P/N Topology Iout(mA) Vin MIN.(V) Vin MAX.(V) Iq(mA) Vout MIN.(V) Vout MAX.(V) Freq(kHz) Efficiency Package
EXAR SP6655 Buck 400 2.6 5.5 20 1 5 PFM 98 DFN-10
EXAR SP6656 Buck 400 2.7 5.5 20 1 5 PFM 98 DFN-10
EXAR SP6650 Buck 600 2.6 6.5 70 1.3 6 PFM 95 MSOP-10
EXAR SP6669 Buck 600 2.5 5.5 300 0.6 5 1500 94 SOT-23-5
EXAR SP6651 Buck 800 2.7 5.5 20 0.8 5 PFM 98 MSOP-10
EXAR SP6654 Buck 800 2.7 5.5 20 0.8 5 PFM 98 MSOP-10
EXAR SP6652 Buck 1000 2.8 5.5 3000 0.9 5 1400 97 MSOP-10
EXAR XRP6658 Buck 1000 2.5 5.5 15 0.6 5 1500 97 SOT-23-5
EXAR XRP6668 Buck 1000/1000 2.5 5.5 30 0.6 5 1500 97 NSOIC-8
EXAR XRP6657 Buck 1500 2.5 5.5 240 1300 95 DFN-6
EXAR XRP7657 Buck 2000 4.75 25 1300 420 94 SOIC-8
EXAR XRP7664 Buck 2000 4.75 18 1000 0.925 16 340 93 SOIC-8
EXAR XRP7665 Buck 3000 4.75 18 1000 0.925 16 340 93 SOIC-8
EXAR SP7650 Buck 3000 2.5 28 1500 0.8 27 300 95 DFN-26
EXAR SP7656 Buck 3000 4.5 29 2000 0.6 28 600 87 SOIC-8
EXAR SP7651 Buck 3000 2.5 20 1500 0.8 19 900 92 DFN-26
EXAR SP7653 Buck 3000 2.5 20 1500 0.8 19 1300 91 DFN-26
EXAR SP7652 Buck 6000 2.5 28 1500 0.8 27 600 92 DFN-26
EXAR SP7663 Buck 6000 3 22 1500 600 91 DFN-26
EXAR SP7662 Buck 12000 3 22 1500 0.8 20.24 300 93 DFN-26
EXAR SP6641 Boost 100 0.9 4.5 10 3.3 5 87 SOT-23-5
EXAR SP6644 Boost 175 0.9 3.3 50 2 5.5 92 MSOP-8
EXAR SP6648 Boost 400 0.7 4.5 13 2 5.5 94 MSOP-10
EXAR SP6660 Boost 200 1.5 4.3 400 -4.3 -8 80 93 SOT-23-5
EXAR SP6661 Boost 200 1.5 5.3 3000 -5 -10 900 92 NSOIC-8
EXAR SP6136 Controller 1500 5 24 0.8 22 600 92 QFN-16
EXAR SP6133 Controller 1500 5 24 0.8 22 300 95 QFN-16
EXAR SP6137 Controller 1500 3 20 0.8 10 900 94 MSOP-10
EXAR SP6134 Controller 1500 3 28 0.8 10 600 94 MSOP-10
EXAR SP6132 Controller 1500 3 28 0.8 10 300 95 MSOP-10
EXAR SP6128 Controller 500 3 5.5 0.8 5 300 95 TSSOP-14
EXAR SP6127 Controller 300 4.5 29 0.6 24 900 90 TSOT-23-6
EXAR SP6126 Controller 300 4.5 29 0.6 24 600 93 TSOT-23-6
EXAR SP6125 Controller 300 4.5 29 0.6 24 300 95 TSOT-23-6
EXAR SP6123 Controller 500 3 5.5 0.8 5 500 95 NSOIC-8
EXAR SP6121 Controller 500 3 5.5 1.3 5.5 500 95 NSOIC-8
EXAR SP6120 Controller 950 3 7 1.3 7 550 95 TSSOP-16
EXAR XRP6124 Controller 500 3 30 1.2 16 92 SOT-23-5
EXAR XRP6142 Controller 400 1 5.5 0.5 5 1000 96 QFN-16

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