TPS51220

適用于筆記本電腦電源的 3V 至 28V 同步峰值電流模式降壓控制器; ? Input Voltage Range: 4.5 V to 28 V\n? Output Voltage Range: 1 V to 12 V\n? Selectable Light Load Operation (Continuous / Auto Skip / Out-Of-Audio Skip)\n? Programmable Droop Compensation\n? Voltage Servo Adjustable Soft Start\n? 200 kHz to 1 MHz Fixed Frequency PWM \n? Selectable Current/D-CAP Mode Architecture\n? 180° Phase Shift Between Channels\n? Resistor or Inductor DCR Current Sensing\n? Powergood Output for Each Channel\n? OCL/OVP/UVP/UVLO Protections (OVP Disable Option)\n? Thermal Shutdown (Non-Latch)\n? Output Discharge Function (Disable Option)\n? Integrated Boot Strap MOSFET Switch\n? QFN-32 (RHB)\n? APPLICATIONS \n? Notebook Computer System and I/O Bus\n? Point of Load in LCD TV, MFP;

The TPS51220 is a dual synchronous buck regulator controller with 2 LDOs. It is optimized for 5-V/3.3-V system controller, enabling designers to cost effectively complete 2-cell to 4-cell notebook system power supply. The TPS51220 supports high efficiency, fast transient response and 99% duty cycle operation. It supports supply input voltage ranging from 4.5 V to 28 V, and output voltages from 1 V to 12 V. Two types of control schemes can be chosen depending on the application. Peak current mode supports stability operation with lower ESR capacitor and output accuracy. The D-CAP mode supports fast transient response. The high duty (99%) operation and the wide input/output voltage range supports flexible design for small mobile PCs and a wide variety of other applications. The fixed frequency can be adjusted from 200 kHz to 1 MHz by a resistor, and each channel runs 180° out of phase. The TPS51220 can also synchronize to the external clock, and the interleaving ratio can be adjusted by its duty. The TPS51220 is available in the 32 pin 5x5 QFN package and is specified from -40°C to 85°C.

TPS51220

Fixed Frequency, 99 Duty Cycle Peak Current Mode Notebook System Power Controller

TPS51220

Fixed Frequency, 99 Duty Cycle Peak Current Mode Notebook System Power Controller

TPS51220A

采用 RSN/RTV 封裝的適用于筆記本電腦電源的 3V 至 28V 同步峰值電流模式降壓控制器; ? Input Voltage Range: 4.5 V to 32 V\n? Output Voltage Range: 1 V to 12 V\n? Selectable Light Load Operation (Continuous / Auto Skip / Out-Of-Audio Skip)\n? Programmable Droop Compensation\n? Voltage Servo Adjustable Soft Start\n? 200-kHz to 1-MHz Fixed-Frequency PWM \n? Selectable Current/D-CAP Mode Architecture\n? 180° Phase Shift Between Channels\n? Resistor or Inductor DCR Current Sensing\n? Adaptive Zero Crossing Circuit\n? Powergood Output for Each Channel\n? OCL/OVP/UVP/UVLO Protections(OVP Disable Option)\n? Thermal Shutdown (Non-Latch)\n? Output Discharge Function (Disable Option)\n? Integrated Boot Strap MOSFET Switch\n? QFN-32 (RTV/RSN) Package\n? APPLICATIONS \n? Notebook Computer System and I/O Bus\n? Point of Load in LCD TV, MFP;

The TPS51220A is a dual synchronous buck regulator controller with two LDOs. It is optimized for 5-V/3.3-V system controller, enabling designers to cost effectively complete 2-cell to 4-cell notebook system power supply. The TPS51220A supports high efficiency, fast transient response, and 99% duty cycle operation. It supports supply input voltage ranging from 4.5 V to 32 V, and output voltages from 1 V to 12 V. Two types of control schemes can be chosen depending on the application. Peak current mode supports stability operation with lower ESR capacitor and output accuracy. The D-CAP mode supports fast transient response. The high duty (99%) operation and the wide input/output voltage range supports flexible design for small mobile PCs and a wide variety of other applications. The fixed frequency can be adjusted from 200 kHz to 1 MHz by a resistor, and each channel runs 180° out-of-phase. The TPS51220A can also synchronize to the external clock, and the interleaving ratio can be adjusted by its duty. The TPS51220A is available in the 32-pin 5×5/4×4 QFN package and is specified from –40°C to 85°C.

TPS51220A-Q1

采用 RSN/RTV 封裝的 3V 至 28V 同步峰值電流模式汽車降壓控制器; ? 符合汽車應(yīng)用要求\n? 輸入電壓范圍：4.5V 至 32V\n? 輸出電壓范圍：1V 至 12V\n? 可選輕載操作（連續(xù)/ 自動(dòng)跳過 / Out-Of-Audio 跳過）\n? 可編程降壓補(bǔ)償\n? 電壓伺服可調(diào)節(jié)軟啟動(dòng)\n? 200kHz 至 1MHz 固定頻率 PWM \n? 可選電流/D-CAP 模式架構(gòu)\n? 通道間的 180° 相移\n? 電阻或電感器 DCR 電流感應(yīng)\n? 自適應(yīng)零交叉電路\n? 每個(gè)通道的電源良好輸出\n? OCL/OVP/UVP/UVLO 保護(hù)（OVP 禁用選項(xiàng)）\n? 熱關(guān)斷（非鎖閉）\n? 輸出放電功能（禁用選項(xiàng)）\n? 閉鎖電流超過 100mA，符合 JESD78 I 類標(biāo)準(zhǔn)\n? 集成自舉 MOSFET 開關(guān)\n? QFN-32 (RTV) 封裝\n? 應(yīng)用 \n? I/O 總線\n? 液晶電視、多媒體框架產(chǎn)品 (MFP) 的負(fù)載點(diǎn);

TPS51220A-Q1 是一個(gè)帶有兩個(gè) LDO 的雙路同步降壓穩(wěn)壓器控制器 它針對(duì) 5V/3.3V 系統(tǒng)控制器進(jìn)行過優(yōu)化，使設(shè)計(jì)者能夠經(jīng)濟(jì)高效地完善 2 節(jié)電池到 4 節(jié)電池的筆記本系統(tǒng)電源。 TPS51220A-Q1 支持高效、快速瞬態(tài)響應(yīng)和 99% 的工作占空比。 它支持 4.5V 到 32V 的電源輸入電壓以及 1V 到 12V 的輸出電壓?？梢愿鶕?jù)應(yīng)用來選擇兩種類型的控制方案。 峰值電流模式支持較低 ESR 電容器及輸出精度的穩(wěn)定運(yùn)行。 D-CAP 模式支持快速瞬態(tài)響應(yīng)。 高占空比 (99%) 運(yùn)行和寬輸入/輸出電壓范圍支持小型移動(dòng) PC 和各種其它應(yīng)用的靈活設(shè)計(jì)。 固定頻率可通過電阻在 200 kHz 到 1 MHz 之間進(jìn)行調(diào)節(jié)，而每個(gè)通道運(yùn)行 180° 相移。 TPS51220A-Q1 可以與外部時(shí)鐘同步，交錯(cuò)比可通過其自身占空比調(diào)節(jié)。 TPS51220A-Q1 采用 32 引腳 5×5/4×4 QFN 封裝，可適應(yīng) –40°C 到 105°C 的環(huán)境。

TPS51220_15

Fixed Frequency, 99 Duty Cycle Peak Current Mode Notebook System Power Controller

TPS51220_16

Fixed Frequency, 99 Duty Cycle Peak Current Mode Notebook System Power Controller

TPS51220A

Fixed Frequency, 99 Duty Cycle Peak Current Mode Notebook System Power Controller

TPS51220A

Fixed Frequency, 99 Duty Cycle Peak Current Mode Notebook System Power Controller

TPS51220A_15

Fixed Frequency, 99 Duty Cycle Peak Current Mode Notebook System Power Controller