TL7660 Status: ACTIVE

CMOS Voltage Converter

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Datasheet

TL7660 (PDF 523 KB)
01 Jun 2006

	TL7660
Number of Channels	1
Total Supply Voltage (V)(Min)(+5V=5, +/-5V=10)	1.5
Total Supply Voltage (V)(Max)(+5V=5, +/-5V=10)	10
Iq per channel(Max)(mA)	0.11
Rating	Catalog
Pin/Package	8MSOP, 8PDIP, 8SOIC
Approx. Price (US$)	0.75 \| 1ku
Operating Temp Range(Celsius)	-40 to 125,-40 to 85
	Samples
	Inventory

Customers Who Evaluated This Product Also Evaluated

TPS63700: Adjustable, -15V Output Inverting DC/DC Converter in 3x3 QFN

TL497A: 500-mA Peak Step-Up, Step-Down, Inverting Switching Voltage Regulator

MC34063A: 1.5-A Boost/Buck/Inverting Switching Regulator

Product Information

Features

Simple Voltage Conversion, Including
- Negative Converter
- Voltage Doubler
Wide Operating Range. . .1.5 V to 10 V
Requires Only Two External (Noncritical) Capacitors
No External Diode Over Full Temperature and Voltage Range
Typical Open-Circuit Voltage Conversion Efficiency. . .99.9%
Typical Power Efficiency. . .98%
Full Testing at 3 V
APPLICATIONS
- On-Board Negative Supplies
- Data-Acquisition Systems
- Portable Electronics

DESCRIPTION/ORDERING INFORMATION

The TL7660 is a CMOS switched-capacitor voltage converter that perform supply-voltage conversions from positive to negative. With only two noncritical external capacitors needed for the charge pump and charge reservoir functions, an input voltage within the range from 1.5 V to 10 V is converted to a complementary negative output voltage of -1.5 V to -10 V. The device can also be connected as a voltage doubler to generate output voltages up to 18.6 V with a 10-V input.

The basic building blocks of the IC include a linear regulator, an RC oscillator, a voltage-level translator, and four power MOS switches. To ensure latch-up-free operation, the circuitry automatically senses the most negative voltage in the device and ensures that the N-channel switch source-substrate junctions are not forward biased. The oscillator frequency runs at a nominal 10 kHz (for V_CC = 5 V), but that frequency can be decreased by adding an external capacitor to the oscillator (OSC) terminal or increased by overdriving OSC with an external clock.

For low-voltage operation (V_IN < 3.5 V), LV should be tied to GND to bypass the internal series regulator. Above 3.5 V, LV should be left floating to prevent device latchup.

The TL7660C is characterized for operation over a free-air temperature range of -40°C to 85°C. The TL7660I is characterized for operation over a free-air temperature range of -40°C to 125°C.

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			CAD Design Tools		Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
TL7660CD	ACTIVE	-40 to 85	0.85 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE	Purchase Samples
TL7660CDG4	ACTIVE	-40 to 85	0.85 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE	Purchase Samples
TL7660CDGKR	ACTIVE	-40 to 85	0.80 \| 1ku	MSOP (DGK) \| 8	View	2500 \| LARGE T&R
TL7660CDGKRG4	ACTIVE	-40 to 85	0.80 \| 1ku	MSOP (DGK) \| 8	View	2500 \| LARGE T&R
TL7660CDGKT	ACTIVE	-40 to 85	1.05 \| 1ku	MSOP (DGK) \| 8	View	250 \| SMALL T&R	Purchase Samples
TL7660CDGKTG4	ACTIVE	-40 to 85	1.05 \| 1ku	MSOP (DGK) \| 8	View	250 \| SMALL T&R	Purchase Samples
TL7660CDR	ACTIVE	-40 to 85	0.75 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R
TL7660CDRG4	ACTIVE	-40 to 85	0.75 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R
TL7660CP	ACTIVE	-40 to 85	0.75 \| 1ku	PDIP (P) \| 8	View	50 \| TUBE
TL7660CPE4	ACTIVE	-40 to 85	0.75 \| 1ku	PDIP (P) \| 8	View	50 \| TUBE
TL7660ID	ACTIVE	-40 to 125	0.90 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE	Purchase Samples
TL7660IDG4	ACTIVE	-40 to 125	0.90 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE	Purchase Samples
TL7660IDGKR	ACTIVE	-40 to 125	0.85 \| 1ku	MSOP (DGK) \| 8	View	2500 \| LARGE T&R
TL7660IDGKRG4	ACTIVE	-40 to 125	0.85 \| 1ku	MSOP (DGK) \| 8	View	2500 \| LARGE T&R
TL7660IDGKT	ACTIVE	-40 to 125	1.10 \| 1ku	MSOP (DGK) \| 8	View	250 \| SMALL T&R	Purchase Samples
TL7660IDGKTG4	ACTIVE	-40 to 125	1.10 \| 1ku	MSOP (DGK) \| 8	View	250 \| SMALL T&R	Purchase Samples
TL7660IDR	ACTIVE	-40 to 125	0.85 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R
TL7660IDRG4	ACTIVE	-40 to 125	0.85 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R
TL7660IP	ACTIVE	-40 to 125	0.85 \| 1ku	PDIP (P) \| 8	View	50 \| TUBE
TL7660IPE4	ACTIVE	-40 to 125	0.85 \| 1ku	PDIP (P) \| 8	View	50 \| TUBE

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 10:39 AM GMT, 22 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 18 WeeksTL7660CD
Americas	Arrow	>1k
	Avnet	641
	Newark	17
	Rochester Electronics	>1k
Asia	Farnell Asia	598
Asia	WPI	118
Europe	Avnet-SILICA	225
	Farnell	598
	Spoerle	>1k
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	378
TI Lead Time*: 18 WeeksTL7660CDG4
Worldwide	DigiKey	Available
TI Lead Time*: 18 WeeksTL7660CDGKR
Americas	Arrow	>1k
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	>1k
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 18 WeeksTL7660CDGKRG4
Worldwide	DigiKey	Available
TI Lead Time*: 14 WeeksTL7660CDGKT
Americas	Arrow	1k
Americas	Rochester Electronics	>1k
Asia	WPI	295
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	203
TI Lead Time*: 14 WeeksTL7660CDGKTG4
Worldwide	DigiKey	Available
TI Lead Time*: 18 WeeksTL7660CDR
Americas	Arrow	>1k
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	>1k
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 18 WeeksTL7660CDRG4
Worldwide	DigiKey	Available
TI Lead Time*: 14 WeeksTL7660CP
Americas	Arrow	650
	Newark	45
	Rochester Electronics	>1k
Asia	Farnell Asia	645
Asia	WPI	92
Europe	Farnell	645
Worldwide	DigiKey	151
Worldwide	Mouser Electronics	625
TI Lead Time*: 14 WeeksTL7660CPE4
Worldwide	DigiKey	Available
TI Lead Time*: 18 WeeksTL7660ID
Asia	WPI	108
Europe	Avnet-SILICA	525
Worldwide	DigiKey	Available
TI Lead Time*: 18 WeeksTL7660IDG4
Worldwide	DigiKey	Available
TI Lead Time*: 14 WeeksTL7660IDGKR
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	>1k
TI Lead Time*: 14 WeeksTL7660IDGKRG4
Worldwide	DigiKey	Available
TI Lead Time*: 14 WeeksTL7660IDGKT
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	Available
TI Lead Time*: 14 WeeksTL7660IDGKTG4
Worldwide	DigiKey	Available
TI Lead Time*: 18 WeeksTL7660IDR
Americas	Arrow	>1k
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	>1k
TI Lead Time*: 18 WeeksTL7660IDRG4
Worldwide	DigiKey	Available
TI Lead Time*: 14 WeeksTL7660IP
Americas	Arrow	>1k
Americas	Rochester Electronics	>1k
Asia	WPI	70
Worldwide	DigiKey	173
Worldwide	Mouser Electronics	532
TI Lead Time*: 14 WeeksTL7660IPE4
Worldwide	DigiKey	Available
View all Distributors

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

	Product Content				DPPM / MTBF / FIT Rate
Device	Eco Plan*	Lead / Ball Finish	MSL Rating / Peak Reflow	Details	Details
TL7660CD	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TL7660CDG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TL7660CDGKR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TL7660CDGKRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TL7660CDGKT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TL7660CDGKTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TL7660CDR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TL7660CDRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TL7660CP	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	View	View
TL7660CPE4	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	View	View
TL7660ID	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TL7660IDG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TL7660IDGKR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TL7660IDGKRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TL7660IDGKT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TL7660IDGKTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TL7660IDR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TL7660IDRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TL7660IP	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	View	View
TL7660IPE4	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	View	View

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for TL7660

Datasheet

TL7660 (PDF, 523 KB)
01 Jun 2006

Tools & Software

Name	Part #	Company	Tool / Software Type
Analog Filter Design	FILTER-DESIGNER	Texas Instruments	Analysis Software
Automatic Resistor/Capacitor Calculator for Passive Filters	RC-FILTER-CALC	Texas Instruments	Calculation Utilities
Decibel Calculator	DECIBEL-CALC	Texas Instruments	Calculation Utilities
Frequency/Wavelength Calculator	FREQ-WAVE-CALC	Texas Instruments	Calculation Utilities
Noise Calculator, Generator and Examples	OPAMP-NOISECALC	Texas Instruments	Calculation Utilities
Op Amp Gain Stage Calculator	GAIN-STAGE-CALC	Texas Instruments	Calculation Utilities
Resistor Calculator for Op Amp Gain and Zero Shift	RESISTOR-CALC	Texas Instruments	Calculation Utilities
Universal EVM for Single/Dual OpAmps without Shutdown in MSOP/SOIC/SOT-23 Packages	OPAMPEVM-SOT23	Texas Instruments	Development Boards/EVMs
SPICE-Based Analog Simulation Program	TINA-TI	Texas Instruments	Simulators
MDACBufferPro(TM) Output Buffer Amplifier Selection Tool	MDACBUFFERPRO	Texas Instruments	Application Software
Active Filter Design Application	FILTERPRO	Texas Instruments	Application Software

Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
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TL7660 Status: ACTIVE

CMOS Voltage Converter

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