TPS60310中文資料單節(jié)電池至 3.3V、20mA 超低靜態(tài)電流電荷泵和開漏電源正常狀態(tài)輸出數(shù)據(jù)手冊(cè)TI規(guī)格書

描述 Description

The TPS6031X step-up, regulated charge pumps generate a 3-V ±4% or 3.3-V ±4% output voltage from a 0.9-V to 1.8-V input voltage (one alkaline, NiCd, or NiMH battery). Only five small 1-uF ceramic capacitors are required to build a complete high-efficiency dc/dc charge pump converter. To achieve the high efficiency over a wide input voltage range, the charge pump automatically selects between a 3x or 4x conversion mode. Output 1 (OUT1) can deliver a maximum of 40 mA, from a 1-V input, with output 2 (OUT2) not loaded. OUT2 can deliver a maximum of 20 mA, from a 1-V input, with OUT1 not loaded. Both outputs can be loaded at the same time, but the total output current of the first voltage doubler must not exceed 40 mA. For example, the load at OUT1 is 20 mA and the load at output 2 is 10 mA. In snooze mode, the devices operate with a typical operating current of 2 uA, while the output voltage is maintained at 3.3 V ±10% or 3 V ±10%, respectively. This is lower than the self-discharge current of most batteries. Load current in snooze mode is limited to 2 mA. If the load current increases above 2 mA, the output voltage drops further and the devices automatically exits the snooze mode and operate in normal mode to regulate to the nominal output voltage with higher output currents. The device is set into the snooze mode by taking the SNOOZE\\ pin low, and is set into normal operating mode by taking the SNOOZE\\ pin high. A power-good function supervises the output voltage of OUT2 and can be used for power up and power down sequencing. Power-good (PG) is offered as either open-drain or push-pull output.

特性 Features

? Regulated 3-V or 3.3-V Output Voltage With up to 20-mA Output Current From a 0.9-V to 1.8-V Input Voltage Range
? High Power Conversion Efficiency (up to 90%) Over Wide Output Current Range, Optimized for 1.2-V Battery Voltage
? Snooze Mode for Improved Efficiency at Low-Output Current
? Additional Output With 2 Times VI (OUT1)
? Device Quiescent Current Less Than 2 uA
? Supervisor Included; Open Drain or Push-Pull Power Good Output
? No Inductors Required/Low EMI
? Only Five Small, 1-uF Ceramic Capacitors Required
? Microsmall 10-Pin MSOP Package
? applications
? Pagers
? Battery-Powered Toys
? Portable Measurement Instruments
? Home Automation Products
? Medical Instruments (Like Hearing Instruments)
? Metering Applications Using MSP430 Microcontroller
? Portable Smart Card Readers

簡(jiǎn)介

TPS60310屬于集成電路（IC）的穩(wěn)壓器-DC-DC開關(guān)穩(wěn)壓器。由TI制造生產(chǎn)的TPS60310穩(wěn)壓器 - DC-DC 開關(guān)穩(wěn)壓器DC-DC 開關(guān)穩(wěn)壓器 PMIC（電源管理集成電路）產(chǎn)品族中的產(chǎn)品是元器件級(jí)設(shè)備，用于需要穩(wěn)定 DC 輸入電壓和/或?qū)⑵滢D(zhuǎn)換為不同幅度的輸出電壓的應(yīng)用。這些器件與稱為“控制器”PMIC 的類似產(chǎn)品的區(qū)別在于集成了主開關(guān)元件，設(shè)備提供的電力會(huì)通過該元件。