The TPS43000 is a high-frequency, voltage-mode, synchronous PWM controller that can be used in buck, boost, SEPIC, or flyback topologies. This highly flexible, full-featured controller is designed to drive a pair of external MOSFETs (one N-channel and one P-channel), enabling it for use with a wide range of output voltages and power levels. With an automatic PFM mode, a shutdown current of less than 1 uA, a sleep-mode current of less than 100 uA and a full operating current of less than 2 mA at 1 MHz, it is ideal for building highly efficient, dc-to-dc converters.
The TPS43000 operates over a wide input voltage range of 1.8 V to 9.0 V. Typical power sources are distributed power systems, two to four nickel or alkaline batteries, or one to two lithium-ion cells. It can be used to generate regulated output voltages from as low as 0.8 V to 8 V or higher. It operates either in a fixed-frequency mode, where the user programs the frequency (up to 2 MHz), or in an automatic PFM mode. In the automatic mode, the controller goes to sleep when the inductor current goes discontinuous, and wakes up when the output voltage has fallen by 2%. In this hysteretic mode of operation, very high efficiency can be maintained over a very wide range of load current. The device can also be synchronized to an external clock source using the dual function SYNC/SD input pin.
The TPS43000 features a selectable two-level current-limit circuit which senses the voltage drop across the energizing MOSFET. The user can select either pulse-by-pulse current limiting or hiccup mode overcurrent protection. The TPS43000 also features a low-power (LP) mode (which reduces gate charge losses in the N-channel MOSFET at high input/output voltages), undervoltage lockout, and soft-start. The TPS43000 is available in a 16-pin TSSOP (PW) package.
| 类型 | 标题 | 下载最新的英语版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | 数据表 | Multimode High-Frequency PWM Controller 数据表 | 2001年 5月 9日 | |||
| 应用手册 | Basic Calculation of a Boost Converter's Power Stage... (Rev. D) | PDF | HTML | 2022年 11月 21日 | |||
| 应用手册 | 升压转换器功率级的基本计算 (Rev. D) | PDF | HTML | 英语版 (Rev.D) | PDF | HTML | 2022年 11月 11日 | |
| 选择指南 | 电源管理指南 2018 (Rev. K) | 2018年 7月 31日 | ||||
| 选择指南 | 电源管理指南 2018 (Rev. R) | 2018年 6月 25日 | ||||
| 用户指南 | 1-MHz, 3.3-V High Efficiency Synchronous Buck Converter | 2002年 6月 14日 | ||||
| 应用手册 | 2.5V to 5V, 600kHz, High-Eff Synch Boost Converter With TPS43000 PWM Controller | 2002年 4月 29日 | ||||
| 更多文献资料 | Seminar 900 Topic 6 - High Power Factor Prereg Using SEPIC | 2001年 2月 15日 |
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The TPS43000EVM-001 is designed to help evaluate the TPS43000 full-featured controller. The TPS43000 is designed to drive a pair of external MOSFET's (N or P) and can be used with a wide range of output voltages and power levels. It can be widely used in networking equipment, servers, PDA's, (...)
This tool helps a power supply engineer to select the right isolated DC-DC topology based on the specifications. Depending on the topology chosen, the calculator also recommends the right IC for the design.
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| TSSOP (PW) | 16 | Ultra Librarian |