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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching RegulatorsTL7660IDGKT
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TL7660IDGKT - Texas Instruments

Manufacturer Part Number
TL7660IDGKT
Manufacturer
Texas Instruments
Allelco Part Number
32D-TL7660IDGKT
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
23,273 pcs available, New & Original
Parts Description
IC REG CHARGE PUMP INV 8VSSOP
Package
8-VSSOP
Data sheet
TL7660IDGKT.pdf

HTML Datasheet

TL7660.pdf
RoHs Status
ROHS3 Compliant
Our certification
In stock: 23273

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Specifications

TL7660IDGKT Tech Specifications
Texas Instruments - TL7660IDGKT technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - TL7660IDGKT

Product Attribute Attribute Value
Manufacturer Texas Instruments
Voltage - Output (Min/Fixed) -Vin, 2Vin
Voltage - Output (Max) -
Voltage - Input (Min) 1.5V
Voltage - Input (Max) 10V
Topology Charge Pump
Synchronous Rectifier No
Supplier Device Package 8-VSSOP
Series -
Package / Case 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Product Attribute Attribute Value
Package Tape & Reel (TR)
Output Type Fixed
Output Configuration Positive or Negative
Operating Temperature -40°C ~ 125°C (TA)
Number of Outputs 1
Mounting Type Surface Mount
Function Ratiometric
Frequency - Switching 10kHz
Current - Output -
Base Product Number TL7660

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

TL7660IDGKT Image
TL7660IDGKT (1)

Manufacturer Part Number

TL7660IDGKT

Manufacturer

Texas Instruments

Introduction

The TL7660IDGKT is a fully integrated voltage-inverting charge pump converter that offers a small, convenient solution for generating a regulated negative voltage in a power management system.

Product Features and Performance

Fully integrated inverting charge pump design

Low power consumption

High efficiency over a wide range of load currents

Output current capability suitable for various low-power applications

Low ripple voltage, ensuring stable operation

Thermal shutdown protection for increased reliability

Product Advantages

Ability to generate a negative voltage from a positive input

No need for external diodes or inductors

Stable operation with ceramic capacitors

Small form factor ideal for space-constrained applications

Extended operating temperature range suitable for industrial applications

Key Technical Parameters

Input Voltage Range: 1.5V to 10V

Output Voltage: -Vin, 2Vin (Fixed)

Topology: Charge Pump

Switching Frequency: 10kHz

Operating Temperature Range: -40°C to 125°C

Mounting Type: Surface Mount

Package/Case: 8-TSSOP, 8-MSOP

Quality and Safety Features

Built-in thermal shutdown

Overcurrent protection

Stable with low ESR capacitors

Lead-free and RoHS compliant

Compatibility

Compatible with a variety of MCUs and analog circuits requiring negative supply

Suitable for use with standard surface mount technology (SMT) processes

Application Areas

Portable battery-powered devices

Data acquisition systems

Operational amplifier power supplies

Industrial controls

Handheld medical equipment

Product Lifecycle

Active product status, not nearing discontinuation

Replacements or upgrades can be sourced within Texas Instruments’ broad portfolio of voltage regulators

Several Key Reasons to Choose This Product

No inductors required, simplifying design and saving board space

Low quiescent current enhancing battery life in portable applications

Produces a regulated output from an unregulated input source

Can be used in both positive and negative voltage conversion applications

Robust design with industry-standard packaging ensures compatibility with a wide range of devices

Reliability backed by Texas Instruments' reputation and support in the power management field

Frequently Asked Questions(FAQ)

How does the TL7660IDGKT compare to other charge pump regulators in terms of input voltage range and output configuration, and what are the implications for power supply design in low-voltage systems?
The TL7660IDGKT operates over a 1.5V to 10V input range, which enables use in compact battery-powered applications such as single-cell Li-ion or alkaline-powered devices. Its ability to generate either -Vin or 2×Vin outputs provides flexibility for systems requiring both positive boost and negative rail supplies from a single regulator. This dual-output capability reduces component count compared to using discrete solutions or multiple ICs, particularly beneficial in space-constrained designs like portable instrumentation or sensor nodes.
What is the typical efficiency of the TL7660IDGKT when operating at 3.3V input with a -Vin configuration, and how does frequency switching affect output ripple and transient response?
At 3.3V input in -Vin mode, the TL7660IDGKT typically achieves 65–75% efficiency due to capacitive charge transfer losses and internal gate drive dissipation. With a fixed switching frequency of 10kHz, the output ripple is generally below 100mV peak-to-peak under moderate load, but increases significantly at higher loads or with poor output filtering. The low switching frequency limits high-frequency noise coupling but also restricts control bandwidth, resulting in slower transient recovery—typically 50–100μs settling time—when load steps occur, making it less suitable for fast-switching digital loads without careful decoupling.
Can the TL7660IDGKT be used to replace a linear regulator in a -5V bias rail application, and what capacitor selection criteria are critical for stable operation?
Yes, the TL7660IDGKT can generate a stable -5V rail when configured for -Vin operation with Vin = 5V, assuming sufficient input headroom and proper output capacitance. However, unlike linear regulators, it requires four external capacitors: two for flying capacitors (typically 1–4.7μF ceramic X5R/X7R), one input bypass capacitor (≥10μF), and one output filter capacitor (≥10μF). All capacitors must have low ESR (<100mΩ) and be rated for at least 16V to tolerate voltage overshoot during switching transitions. Poor capacitor choice leads to instability, excessive ripple, or failure to start.
Why might the TL7660IDGKT not be ideal for high-current negative rail applications, and how does its current delivery capability compare to dedicated DC-DC converters?
The TL7660IDGKT lacks an internal pass transistor and relies on capacitive inversion, limiting its output current to approximately 1mA continuous in -Vin mode and up to 10mA peak. In contrast, modern buck converters like the TPS54331 can deliver 3A efficiently. Thus, the TL7660IDGKT is unsuitable for driving motors, relays, or active loads exceeding tens of milliamps. It is best suited for biasing op-amps, reference circuits, or enabling MOSFET gates where minimal quiescent current and small signal levels are acceptable.
What precautions should be taken when integrating the TL7660IDGKT into a mixed-signal PCB layout to minimize electromagnetic interference and ensure reliable startup?
Place the TL7660IDGKT close to the power input with short traces to flying capacitors. Use ground plane stitching beneath the IC and avoid routing sensitive analog signals near switching nodes. Input and output capacitors should be placed within 5mm of the pins, preferably using 0402 or smaller packages to reduce loop area. Due to its 10kHz operation, conducted emissions are relatively benign, but bulk capacitance on the input helps suppress transients from upstream regulators. Startup timing may vary if input voltage ramps slowly; adding a small series resistor (1–10Ω) on the V+ pin can dampen inrush current and improve reliability in hot-plug scenarios.
Is the TL7660IDGKT compatible with automatic optical inspection (AOI) and reflow soldering processes commonly used in high-volume manufacturing?
Yes, the TL7660IDGKT is packaged in an 8-VSSOP (MSOP) surface-mount device with a standard 0.5mm pitch and 3mm body width, fully compliant with IPC-7351 land patterns. It has an MSL rating of 1, allowing unlimited floor life before reflow. The package supports lead-free soldering profiles up to 260°C peak temperature, making it suitable for industrial SMT lines. No special handling is required beyond standard assembly practices, though attention to paste deposition and alignment accuracy is advised due to fine pitch.
How does temperature derating affect the performance of the TL7660IDGKT across its operating range from -40°C to 125°C, particularly regarding output accuracy and capacitor behavior?
Over the full temperature range, the internal oscillator frequency shifts by ±20%, which directly affects charge transfer timing and thus output regulation. While the datasheet guarantees functionality, output voltage variation can exceed ±15% in extreme cases, especially when using ceramic capacitors whose capacitance drops significantly at elevated temperatures (e.g., 50% loss at 125°C for X5R dielectrics). This necessitates conservative design margins in precision analog applications. Additionally, leakage currents increase at high temperatures, potentially reducing efficiency and increasing standby power consumption in battery-operated systems.
When selecting between the TL7660IDGKT and alternative charge pump ICs like the MAX1044 or LT1054, what key trade-offs emerge in terms of pin compatibility, external components, and system cost?
The TL7660IDGKT shares functional similarity with legacy parts but offers improved integration and wider availability from TI’s mature supply chain. Unlike the MAX1044, which requires only two capacitors and simpler layout, the TL7660IDGKT uses four capacitors for better noise immunity and stability. Compared to the LT1054, it consumes less quiescent current (~50μA vs ~100μA) and operates at a more manageable 10kHz instead of MHz-range frequencies that complicate filtering. However, newer synchronous buck-boost controllers often provide better efficiency and higher current, making them preferable despite higher BOM cost—highlighting a trade-off between simplicity, footprint, and performance.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments TL7660IDGKT

Product Attribute TL7660IDGKTG4 TL7660IDGKR TL7660CDGKT TL7660IDRG4
Part Number TL7660IDGKTG4 TL7660IDGKR TL7660CDGKT TL7660IDRG4
Manufacturer Luminary Micro / Texas Instruments Texas Instruments Texas Instruments Luminary Micro / Texas Instruments
Voltage - Input (Max) - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Voltage - Output (Min/Fixed) - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Current - Output - - - -
Synchronous Rectifier - - - -
Topology - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Series - - - -
Function - - - -
Output Type - Current - Unbuffered Voltage - Buffered -
Number of Outputs - - - -
Voltage - Input (Min) - - - -
Voltage - Output (Max) - - - -
Frequency - Switching - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Output Configuration - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C

TL7660IDGKT Datasheet PDF

Download TL7660IDGKT pdf datasheets and Texas Instruments documentation for TL7660IDGKT - Texas Instruments.

HTML Datasheet
TL7660.pdf

Customer Reviews

Evaluation: 10 Articles

  • Emil***rperTech
    Jun 23, 2026

    Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.

  • Liam***terTech
    Jun 15, 2026

    Used this CPLD in a logic control project. Programming was straightforward and signal timing matched the design requirements.

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

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Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

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Delivery Method

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Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
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TL7660IDGKT Image

TL7660IDGKT

Texas Instruments
32D-TL7660IDGKT

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