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TPS720 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS720 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 31 page TPS720xx V EN V BATT IN EN OUT GND V CORE 1.3 V 1.8 V Standalone dc/dc Converter or PMU BIAS C BIAS C OUT C IN Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design TPS720 SBVS100E – JUNE 2008 – REVISED SEPTEMBER 2015 TPS720 350 mA, Ultra-Low VIN, RF Low-Dropout Linear Regulator With Bias Pin The TPS720 supports a novel feature in which the 1 Features output of the LDO regulates under light loads when 1 • 350-mA High-Performance LDO the IN pin is left floating. The light-load drive current • Low Quiescent Current: 38 μA is sourced from VBIAS under this condition. This feature is particularly useful in power-saving • Excellent Load Transient Response: applications where the DC-DC converter connected ±15 mV for ILOAD = 0 mA to 350 mA in 1 μs to the IN pin is disabled but the LDO is still required • Excellent Line Transient Response: to regulate the voltage to a light load. ΔVOUT = ±2 mV for ΔVBIAS = ±600 mV in 1 μs The TPS720 is stable with ceramic capacitors and ΔVOUT = ±200 μV for ΔVIN = ±400 mV in 1 μs uses an advanced BICMOS fabrication process that • Low Noise: 48 μVRMS (10 Hz to 100 kHz) yields a dropout of 110 mV at a 350-mA output load. • 80 dB VIN PSRR (10 Hz to 10 kHz) The TPS720 has the unique feature of providing a monotonic VOUT rise (overshoot limited to 3%) with • 70 dB VBIAS PSRR (10 Hz to 10 kHz) VIN inrush current limited to 100 mA + ILOAD with an • Fast Start-Up Time: 140 μs output capacitor of 2.2 μF. • Built-In Soft-Start With Monotonic VOUT Rise and The TPS720 uses a precision voltage reference and Start-Up Current Limited to 100 mA + ILOAD feedback loop to achieve overall accuracy of 2% over • Overcurrent and Thermal Protection load, line, process, and temperature extremes. An • Low Dropout: 110 mV at ILOAD = 350 mA ultra-small DSBGA package makes the TPS720 ideal for handheld applications. The TPS720 is also • Stable with 2.2- μF Output Capacitor available in a SON-8 package. This family of devices • Available in 1.33 mm × 0.96 mm DSBGA-5 and 2 is fully specified over the temperature range of mm × 2 mm SON-6 Packages TJ = –40°C to 125°C. 2 Applications Device Information(1) • Digital Cameras PART NUMBER PACKAGE BODY SIZE (NOM) • Cellular Camera Phones DSBGA (5) 1.36 mm × 0.96 mm TPS720 SON (6) 2.00 mm × 2.00 mm • Wireless LAN • Handheld Products (1) For all available packages, see the orderable addendum at the end of the data sheet. 3 Description Simplified Schematic The TPS720 family of dual rail, low-dropout linear regulators (LDOs) offers outstanding ac performance (PSRR, load and line transient response), while consuming a very low quiescent current of 38 μA. The VBIAS rail that powers the control circuit of the LDO draws very low current (on the order of the quiescent current of the LDO) and can be connected to any power supply that is equal to or greater than 1.4 V above the output voltage. The main power path is through VIN, which can be a lower voltage than VBIAS; it can be as low as VOUT + VDO, increasing the efficiency of the solution in many power-sensitive applications. For example, VIN can be an output of a high-efficiency, DC-DC step-down regulator. 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
Similar Part No. - TPS720_15 |
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Similar Description - TPS720_15 |
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