RICHTEK的电源管理技术-20140610_update.pdfRICHTEK的电源管理技术-2

文件名称: RICHTEK的电源管理技术-20140610_update.pdf

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详细说明：RICHTEK的电源管理技术-20140610_updatepdf,本资源主要讲解了RICHTEK的电源管理技术，包含了功率管理器件，转换器选型方法，电流模式Buck转换，COT的瞬态响应等相关知识arcinfo 电子信息网 Richtek Buck转换器选型方法园开始 ·单输出/双输出最大电流0.6A~6A Vin>5v? PSM or PWm 选内部或外部补偿低压Buck Yes 固定或可调工作频率单输出或三输出 No 电流模式 or acot 选 Vin>18V? 最大电流1.5A~6A 18∨Buck PSM or PWm Yes ●340/800/1200kHz 下桥内置或外置 No vin>24V?→ 最人电流2A~10A 选 .PSM or PWM 24V BuCk ●340/500/600/1200kHz Y es 同步或井同步最大电流0.6A~5A 选 PSM or PWm 32/36V Buck .500kHz your power partner. RCHTE arcinfo 电子信息网 vin<55V电流模式Buck转换器 lout RT8070 4}RT8074 RT8078A 4A, PSM i No PG. PSoP-8 RT8071A/B3A 3~6A RT8073 6A 110m9/70m 工业级! RT8068A 3A RT8065 3A 1Mhz CM. PG 5A RT8055 RT8082 RT8072 120m9/80m 69/49mQ. PWM/ PSM 3A, CM. PWM 3A,2MHz,PWM,-4321-3002MH+z(Ad) RT8064 2A i 300K-2MHz(Adj), CM, 75/55m n 50/35mΩ,PSM,PG, 2A WDFN3x3. PSOP8 WQFN3x3-12EL PSOP-8WDFN3X3-12 180m120m 200K-2MHZ(Adi), RT8079/A CM, PSM, PG, RT2652 RT8077 Ext Comp 3A, 300K- 2MHz(Adi) PSOP-8, WDFN3x3-8 2A.1.2MH: 2A. 2MHZ PSM. CM 45/45m 11070mQ,CM, 90/90mQ,WQFN2x2-10 PSM/PWM. PG WDFN3x3-10 WQFN3x3-16 RT8010/A RT8057 RT8059 RT8020 双输 1A.1.5MHz 1A/1A.1.5MHz 出 1A21.5MHz, 1A,225MHz, CM. PWM/PSM CM. PWM CM. PSM CM. PWM. DEN3X3-12 DFN2x2/3x3 DFN2x2 T/SOT-23-5 ≤1A H RT8035 RT8025 RT8008/9 800mA/800mA.1.25MH 400mA,1.25MHz, 600mA. 1.5MHz/1.25MHz i CM PSM DFN3x3-10 CM. PSM CM, PSM TSOT-23-5 T/SOT-23-5 your power partner. RCHTE arcinfo 电子信息网 vin≤18v电流模式Buck转换器理网 ai.Coi QUT RT7299B O >3A 起 8a Buck 200kHz-16MHz PG. CM. PWM. 26mQ/19mQ WQFN-14 AL 3.5x3.5 SS/TR SOP-8(Exposec Pad L回ln RT7298A/B RT7257 Wrv144L3.5X3.5 RT7297 6a Buck 200kHz-1 6MHz ITOP VIEW) PG, CM, PSM/PWM. 26mQ/19mQ RT7256 BOOT 3A PSM/PWM, VREF=0.8V WQFN-14AL35×3.5 No 3A,内补,PSM GND I FD RT7270 二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二E二二二二二二二二二二二二二二 PSOP-8 340KHz SOP-8(Exposed Pad) PWM. VD=:=0.925V 3A,外补,PSOP8 RT7273 340K/800K/12MHz 2A SW 3-CH:3A+2A+2A RT7250 RT7237 Adj. Fsw 300khz-22MHZ RT7252 EN□ RT7247 CM. PWM. QFN6X6-40L 2A,内补,PG SoP-8(EXposed Pad) PsM/PWM,VpF=0.8∨ PWM/PSM,Ps○P8 二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二=二二二二二=二===二二二二二二=二二二二 340K800KH RT7248 PWM, VREF=0. 923V RT7249 RT8297 <2A 2A,外补,PSOP8 PGND [./N_OU RT7251 OOD 340K/800K1.2MHz 3.5A Buck 1.5A,内补,PG DEN-8L 2X2 +75mA-2,58A switch 回阻F PWM/PSM DFN2X2-8L Adj. Fsw/ 300khz-14MHZ 340KHz/800KHZ CM, PWM. WQFL 4x4-16L WaFN. 16L 4x4 5 Lena your power partner. RCHTE arcinfo RT7273高功率密度3输出Buck转换器电子信息网园 Features TvDical Application circuit The Rl7273 features three synchronous wide input 1 3233.34VINR 500T c33c23 range high efficien cy Buck converte rs, ideal for high YIN1 icon power-density systems. The highly integrated features LX11415 47山H VINe c:3 give designers the options to optimize the choices of 10uF 3402T470FT22pFT22F FBi external components in their target applications. The VIN3 R12 high performance enables the high efficiency design 10uF BOOT2 with less board space, lower component cost, and 28 PvcC 4 uH C lower eyl RT7273 LX2 33F c32 c16c21 402T470pF丁224F丁22F COMPI FB2 PCB placement example 20 RLIM1 BOOI CRI soon 47nF<51k EN 1 A AInE TnF LX3 CoMP2 R20⊥Lc15 C11 402k丁470pF丁22F22F <20k RLIM2 FB3 RIG S52 R13 TF<75 C25c29 EN2 工 4 TnFT4.7nF R18 COMPE PGOOD -O PGOoD RIMS SYNC SR4 5s3 25 nput signal LOWP 14,5mm 47rF<8 EN3 ROSCE c3⊥e 47nFT4.7nF R1了 320mm 26.331.35 8d PadH your power partner. RCHTE arcinfo 电子信息网设计案例园 12V Buck 长期工作的负载 RT7249 L 5V 限流开关 75mA~2580mA可调负载 your power partner. RCHTE arcinfo 电子信息网 vin≤18 VACOTTM Buck转换器理网 ai.Coi 5A. ACOTTM 650kHz QUT 3种封装可选 RT7239 RT7235 GND ·引脚兼容 PSOP-8. PWM PG. PWM. HTSSOP-14, DFN3x3 PGND 5A TSSOP-14(Expcsed Fad) RT7240 RT7236 PSOP-8, PSM PG. PSM. HTSSOP-14. DFN3x3 BOOT GND 4A, ACOTTM 650kHz GND RT7233 RT7231 4A SOP-8(Exposed Pad 05 PSOP-8. PWM PG, PWM, HTSSOP-14, DFN3X3 H xamOT Green load current step EN T RT7234 RT7232 OT PSOP-8. PSM PG. PSM. HTSSOP-14, DFN3x3 PGOOD ==s========s== aa0au0aanan 3A ACOTTM 700kHz NDEN-1OL 3x3 3A C园Luw RT7277 RT7275 PSOP-8. PWM PG, PWM, HTSSOP-14, DFN3x3 RT7278 RT7276 优秀的瞬态响应特性 i PSOP-8, PSM PG. PSM HTSSOP.14. DFN3x3 2A =〓〓〓〓〓 2A. ACOTTM 700kHz RT7281 RT7279 PSOP-8. PWM PG. PWM HTSSOP-14, DFN3x3 RT7274 RT7280 10mm 1.5A 10r i PSOP-8, PSM PG, PSM, HTSSOP-14, DFN3X3 i DFN3X3封装节省空间 your power partner. RCHTE arcinfo 电子信息网 vin≤18 VACOTTM BuCk转换器-So Oi ouT n匚 BOOT am无补偿电路 ACOT MLCC兼容 chD arr OVErshoot: 21mv, undershoot 2mv 极优的瞬态响应能力 3.5A RT7295A/C35A RT6214AB 3.5A 采用FCOL技术 i RT6212A/B2A 2.5Ai RT7294A/C25A Selder/ Meld Campound :RT6213A/B25A Lead 15A RT7285C15A RT7255A/C RT6211A/B1.5A 1.5A 打嗝模式UVP with Pgss 500KHZ SW VIN EN SOT23-8 TOP VIEV RE=0.6V±1% PSM/ PWM BOOTGND FB 4BST 9 your power partner. RCHTE arcinfo 电子信息网 FcOL好在哪里? ai.Coi 传统方法 WG仝倒装技术FcOL 57°C 倒装优势 FCOL EVB: 低阻 Pd=0.74W. 低电感、低电容 T~650C 低热阻 0A550C/W your power partner. 30C 73 TMIN TMAX

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