TPS720

AKTIV

Spannungsregler mit niedrigem VIN (1,1 V), hohem PSRR, niedrigem IQ und niedrigem Dropout, 350 mA, m

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Datenblatt

document-pdfAcrobat TPS720 350 mA, Ultra-Low VIN, RF Low-Dropout Linear Regulator With Bias Pin datasheet (Rev. E) (Englisch) PDF | HTML

TPS720

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Rating

Catalog

Vin (max) (V)

4.5

Vin (min) (V)

1.1

Iout (max) (A)

0.35

Output options

Fixed Output

Vout (max) (V)

1.8

Vout (min) (V)

0.9

Fixed output options (V)

0.9, 1, 1.02, 1.05, 1.1, 1.15, 1.2, 1.3, 1.32, 1.5, 1.7, 1.8, 2.3

Noise (µVrms)

48

PSRR at 100 KHz (dB)

55

Iq (typ) (mA)

0.038

Features

Enable

Thermal resistance θJA (°C/W)

67

Load capacitance (min) (µF)

2.2

Regulated outputs (#)

1

Accuracy (%)

2

Dropout voltage (Vdo) (typ) (mV)

110

Operating temperature range (°C)

-40 to 125

Rating

Catalog

Vin (max) (V)

4.5

Vin (min) (V)

1.1

Iout (max) (A)

0.35

Output options

Fixed Output

Vout (max) (V)

1.8

Vout (min) (V)

0.9

Fixed output options (V)

0.9, 1, 1.02, 1.05, 1.1, 1.15, 1.2, 1.3, 1.32, 1.5, 1.7, 1.8, 2.3

Noise (µVrms)

48

PSRR at 100 KHz (dB)

55

Iq (typ) (mA)

0.038

Features

Enable

Thermal resistance θJA (°C/W)

67

Load capacitance (min) (µF)

2.2

Regulated outputs (#)

1

Accuracy (%)

2

Dropout voltage (Vdo) (typ) (mV)

110

Operating temperature range (°C)

-40 to 125

WSON (DRV)

6

4 mm² (2 mm × 2 mm)

DSBGA (YZU)

5

2.02 mm² (— mm × — mm)

350-mA High-Performance LDO
Low Quiescent Current: 38 µA
Excellent Load Transient Response:
±15 mV for I_LOAD = 0 mA to 350 mA in 1 µs
Excellent Line Transient Response:
ΔV_OUT = ±2 mV for ΔV_BIAS = ±600 mV in 1 µs
ΔV_OUT = ±200 µV for ΔV_IN = ±400 mV in 1 µs
Low Noise: 48 µV_RMS (10 Hz to 100 kHz)
80 dB V_IN PSRR (10 Hz to 10 kHz)
70 dB V_BIAS PSRR (10 Hz to 10 kHz)
Fast Start-Up Time: 140 µs
Built-In Soft-Start With Monotonic V_OUT Rise and Start-Up Current Limited to 100 mA + I_LOAD
Overcurrent and Thermal Protection
Low Dropout: 110 mV at I_LOAD = 350 mA
Stable with 2.2-µF Output Capacitor
Available in 1.33 mm × 0.96 mm DSBGA-5 and 2 mm × 2 mm SON-6 Packages

350-mA High-Performance LDO
Low Quiescent Current: 38 µA
Excellent Load Transient Response:
±15 mV for I_LOAD = 0 mA to 350 mA in 1 µs
Excellent Line Transient Response:
ΔV_OUT = ±2 mV for ΔV_BIAS = ±600 mV in 1 µs
ΔV_OUT = ±200 µV for ΔV_IN = ±400 mV in 1 µs
Low Noise: 48 µV_RMS (10 Hz to 100 kHz)
80 dB V_IN PSRR (10 Hz to 10 kHz)
70 dB V_BIAS PSRR (10 Hz to 10 kHz)
Fast Start-Up Time: 140 µs
Built-In Soft-Start With Monotonic V_OUT Rise and Start-Up Current Limited to 100 mA + I_LOAD
Overcurrent and Thermal Protection
Low Dropout: 110 mV at I_LOAD = 350 mA
Stable with 2.2-µF Output Capacitor
Available in 1.33 mm × 0.96 mm DSBGA-5 and 2 mm × 2 mm SON-6 Packages

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 V_BIAS 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 V_IN, which can be a lower voltage than V_BIAS; it can be as low as V_OUT + V_DO, increasing the efficiency of the solution in many power-sensitive applications. For example, V_IN can be an output of a high-efficiency, DC-DC step-down regulator.

The TPS720 supports a novel feature in which the output of the LDO regulates under light loads when the IN pin is left floating. The light-load drive current is sourced from V_BIAS under this condition. This feature is particularly useful in power-saving applications where the DC-DC converter connected to the IN pin is disabled but the LDO is still required to regulate the voltage to a light load.

The TPS720 is stable with ceramic capacitors and uses an advanced BICMOS fabrication process that yields a dropout of 110 mV at a 350-mA output load. The TPS720 has the unique feature of providing a monotonic V_OUT rise (overshoot limited to 3%) with V_IN inrush current limited to 100 mA + I_LOAD with an output capacitor of 2.2 µF.

The TPS720 uses a precision voltage reference and feedback loop to achieve overall accuracy of 2% over load, line, process, and temperature extremes. An ultra-small DSBGA package makes the TPS720 ideal for handheld applications. The TPS720 is also available in a SON-8 package. This family of devices is fully specified over the temperature range of
T_J = –40°C to 125°C.

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 V_BIAS 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 V_IN, which can be a lower voltage than V_BIAS; it can be as low as V_OUT + V_DO, increasing the efficiency of the solution in many power-sensitive applications. For example, V_IN can be an output of a high-efficiency, DC-DC step-down regulator.

The TPS720 supports a novel feature in which the output of the LDO regulates under light loads when the IN pin is left floating. The light-load drive current is sourced from V_BIAS under this condition. This feature is particularly useful in power-saving applications where the DC-DC converter connected to the IN pin is disabled but the LDO is still required to regulate the voltage to a light load.

The TPS720 is stable with ceramic capacitors and uses an advanced BICMOS fabrication process that yields a dropout of 110 mV at a 350-mA output load. The TPS720 has the unique feature of providing a monotonic V_OUT rise (overshoot limited to 3%) with V_IN inrush current limited to 100 mA + I_LOAD with an output capacitor of 2.2 µF.

The TPS720 uses a precision voltage reference and feedback loop to achieve overall accuracy of 2% over load, line, process, and temperature extremes. An ultra-small DSBGA package makes the TPS720 ideal for handheld applications. The TPS720 is also available in a SON-8 package. This family of devices is fully specified over the temperature range of
T_J = –40°C to 125°C.

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Andere Linear- und Low-Dropout-Regler (LDO) suchen

Herunterladen Video mit Transkript ansehen Video

Top-Dokumentation	Typ	Titel	Format-Optionen	Datum
*	Datenblatt	TPS720 350 mA, Ultra-Low VIN, RF Low-Dropout Linear Regulator With Bias Pin datasheet (Rev. E)	PDF \| HTML	30.09.2015
	Anwendungshinweis	LDO Noise Demystified (Rev. B)	PDF \| HTML	18.08.2020
	Anwendungshinweis	A Topical Index of TI LDO Application Notes (Rev. F)		27.06.2019
	Auswahlhilfe	Low Dropout Regulators Quick Reference Guide (Rev. P)		21.03.2018
	Anwendungshinweis	LDO PSRR Measurement Simplified (Rev. A)	PDF \| HTML	09.08.2017
	Anwendungshinweis	Power Reference Design for the 'C6472, 12V DCDC Controllers, and LDOs		26.03.2010
	Analog Design Journal	Taming linear-regulator inrush currents		01.05.2009
	Analog Design Journal	Q2 2009 Issue Analog Applications Journal		01.05.2009
	Benutzerhandbuch	TPS720xx		19.08.2008
	Anwendungshinweis	Inrush Current Limit in the TPS720xx		06.06.2008

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Evaluierungsplatine

TPS720105DRVEVM — TPS720105 LDO-Linearregler im DRV-Gehäuse – Evaluierungsmodul

The TPS720105DRVEVM is a fully assembled and tested circuit for evaluating the TPS720105 low-dropout linear regulator in the DRV (2mm x 2mm SON-6) package.

Benutzerhandbuch: PDF

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Simulationsmodell

TPS720 PSpice Transient Model

SBVM248.ZIP (21 KB) - PSpice-Modell

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Gehäuse	Pins	CAD-Symbole, Footprints und 3D-Modelle
WSON (DRV)	6	Ultra Librarian
DSBGA (YZU)	5	Ultra Librarian

TPS720

Spannungsregler mit niedrigem VIN (1,1 V), hohem PSRR, niedrigem IQ und niedrigem Dropout, 350 mA, m

TPS720

Produktdetails

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