LM2776

AKTIV

Inverter mit geschaltetem Kondensator

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Datenblatt

document-pdfAcrobat LM2776 Switched Capacitor Inverter datasheet (Rev. B) (Englisch) PDF | HTML

LM2776

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Type

Charge pump, Converter

Iout (max) (A)

0.2

Vin (min) (V)

2.7

Vin (max) (V)

5.5

Switching frequency (min) (kHz)

1700

Switching frequency (max) (kHz)

2300

Features

Enable, Light Load Efficiency Mode, Output discharge, Synchronous Rectification, UVLO Fixed, Unregulated

Vout (min) (V)

-5.5

Vout (max) (V)

-2.7

Iq (typ) (µA)

100

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Type

Charge pump, Converter

Iout (max) (A)

0.2

Vin (min) (V)

2.7

Vin (max) (V)

5.5

Switching frequency (min) (kHz)

1700

Switching frequency (max) (kHz)

2300

Features

Enable, Light Load Efficiency Mode, Output discharge, Synchronous Rectification, UVLO Fixed, Unregulated

Vout (min) (V)

-5.5

Vout (max) (V)

-2.7

Iq (typ) (µA)

100

SOT-23 (DBV)

6

8.12 mm² 2.9 x 2.8

Input Voltage: 2.7 V to 5.5 V
200-mA Output Current
Inverts Input Supply Voltage
Low-Current PFM Mode Operation
2-MHz Switching Frequency
Greater than 90% Efficiency
Current Limit and Thermal Protection
No Inductors

Input Voltage: 2.7 V to 5.5 V
200-mA Output Current
Inverts Input Supply Voltage
Low-Current PFM Mode Operation
2-MHz Switching Frequency
Greater than 90% Efficiency
Current Limit and Thermal Protection
No Inductors

The LM2776 CMOS charge-pump voltage converter inverts a positive voltage in the range from 2.7 V to 5.5 V to the corresponding negative voltage. The LM2776 uses three low-cost capacitors to provide 200 mA of output current without the cost, size, and electromagnetic interference (EMI) related to inductor-based converters.

With an operating current of only 100 µA and operating efficiency greater than 90% at most loads, the LM2776 provides ideal performance for battery-powered systems requiring a high power negative power supply.

The LM2776 has been placed in TI’s 6-pin SOT-23 to maintain a small form factor.

The LM2776 CMOS charge-pump voltage converter inverts a positive voltage in the range from 2.7 V to 5.5 V to the corresponding negative voltage. The LM2776 uses three low-cost capacitors to provide 200 mA of output current without the cost, size, and electromagnetic interference (EMI) related to inductor-based converters.

With an operating current of only 100 µA and operating efficiency greater than 90% at most loads, the LM2776 provides ideal performance for battery-powered systems requiring a high power negative power supply.

The LM2776 has been placed in TI’s 6-pin SOT-23 to maintain a small form factor.

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Technische Dokumentation

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Alle anzeigen 7

	Typ	Titel		Datum
*	Data sheet	LM2776 Switched Capacitor Inverter datasheet (Rev. B)	PDF \| HTML	07 Feb 2017
	Application note	Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B)	PDF \| HTML	23 Mai 2022
	Technical article	Low-noise charge pumps make it easy to create negative voltages	PDF \| HTML	30 Aug 2017
	Technical article	Pump it up quietly	PDF \| HTML	19 Feb 2016
	Technical article	Pump it up with charge pumps – Part 1	PDF \| HTML	01 Feb 2016
	White paper	The Forgotten Converter		15 Jun 2015
	User guide	Using the LM2776 Evaluation Module		19 Mai 2015

Design und Entwicklung

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

Evaluierungsplatine

LM2776EVM — Evaluierungsmodul für Ladungspumpen-Inverter LM2776

The LM2776EVM aids in evaluation of the LM2776 Charge Pump Inverter. The 2 MHz switched capacitor boost provides up to 200mA of output current utilizing 3 small external capacitors. With a low current PFM or ECO mode, the LM2776 draws a minimal load from the power supply when the (...)

Benutzerhandbuch: PDF

Nicht verfügbar auf TI.com

Simulationsmodell

LM2776 Unencrypted PSpice Transient Model Package (Rev. A)

SNVMAR2A.ZIP (80 KB) - PSpice Model

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Referenzdesigns

TIDA-00626 — Referenzdesign für CW-Signalgenerator im Hochfrequenzbereich (9,8 GHz) mit integriertem Synthesizer

This design is a 9.8-GHz wideband, low-phase noise, integrated continuous wave (CW) RF signal generator with versatile spur reduction technique. The output level can be programmed from -32 dBm to 14.5 dBm in 0.5-dB steps. This signal generator can be used as local oscillator for applications, such (...)

Design guide: PDF

Schaltplan: PDF

Referenzdesigns

TIDA-01063 — Hochgenaues AC-Strommessungs-Referenzdesign mit PCB-Rogowski-Spulen-Sensor

TIDA-01063 is a reference design for current sensing using a PCB Rogowski Coil sensor to achieve very good linearity for wide measurement range at very low system BOM cost. PCB Rogowski sensor is advantageous for isolated current measurement due to very high bandwidth of 20 MHz and fast settling (...)

Design guide: PDF

Schaltplan: PDF

Gehäuse	Pins	CAD-Symbole, Footprints und 3D-Modelle
SOT-23 (DBV)	6	Ultra Librarian

Es gelten die allgemeinen Geschäftsbedingungen von TI für Evaluierungsartikel.

LM2776

Inverter mit geschaltetem Kondensator

LM2776

Produktdetails

Technische Dokumentation

Design und Entwicklung

LM2776EVM — Evaluierungsmodul für Ladungspumpen-Inverter LM2776

LM2776 Unencrypted PSpice Transient Model Package (Rev. A)

TIDA-00626 — Referenzdesign für CW-Signalgenerator im Hochfrequenzbereich (9,8 GHz) mit integriertem Synthesizer

TIDA-01063 — Hochgenaues AC-Strommessungs-Referenzdesign mit PCB-Rogowski-Spulen-Sensor

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