TPS60243 - 具有固定 3V 输出用于 VCO 电源的 170 uVrms 零纹波开关电容升压转换器

TPS60243是TI德州仪器公司的一款电荷泵（无感应器）产品，TPS60243是具有固定 3V 输出用于 VCO 电源的 170 uVrms 零纹波开关电容升压转换器，本站介绍了TPS60243的封装应用图解、特点和优点、功能等，并给出了与TPS60243相关的TI元器件型号供参考。

TPS60243 - 具有固定 3V 输出用于 VCO 电源的 170 uVrms 零纹波开关电容升压转换器 - 电荷泵（无感应器） - DC/DC开关稳压器 - 德州仪器

产品特性

Wide Input Voltage Range from 1.8 V to 5.5 V
Regulated 2.7-V, 3-V, 3.3-V or 5-V Output Voltage With ±2.5% Accuracy Over Load
Up to 25-mA Output Current
170-µVrms Zero Ripple Output: at 20 Hz to 10 MHz Bandwidth
Up to 90% Efficiency
Minimum Number of External Components
- No Inductors
- Only Small Ceramic Chip Capacitors
Shutdown Mode: 0.1 µA Typical
Thermal Protection and Current Limit
Micro-Small 8-Pin VSSOP Package
EVM Available TPS60241EVM-194

产品应用

VCO and PLL Power for:
- Smart Phones
- Mobile Phones
- PCMCIA Modems
Smartcard Readers
Digital Cameras
MP3 Players
SIM Modules
Electronic Games
Memory Backup
Handheld Meters
Bias Supplies

产品说明

The TPS6024x devices are a family of switched capacitor voltage converters, ideally suited for voltage-controlled oscillator (VCO) and phase-locked loop (PLL) applications that require low noise and tight tolerances. Its dual-cap design uses four ceramic capacitors to provide ultra-low output ripple with high efficiency, while eliminating the need for inefficient linear regulators.

The TPS6024x devices operate down to 1.8 V, supporting a 3.3-V, 2.7-V, 3-V output from two-cell, nickel- or alkaline-based chemistries, whereas the TPS60241 works with 2.7-V to 5.5-V input voltage providing a 5-V output. The devices work equally well for low EMI DC–DC step-up conversion without the need for an inductor. The high switching frequency (typical 160 kHz) promotes the use of small surface-mount capacitors, saving board space. The shutdown mode of the converter conserves battery energy.

The devices are thermally protected and current-limited for reliable operation even under persisting fault conditions. Normal quiescent current (ground pin current) is only 250 µA, and typically 0.1 µA in shutdown mode. The TPS6024x devices come in a thin, 8-pin VSSOP package with a component height of only 1.1 mm.

产品器件信息

PART NUMBER	PACKAGE	OUTPUT VOLTAGE
TPS60240	VSSOP (8)	3.3 V
TPS60241		5 V
TPS60242		2.7 V
TPS60243		3 V

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