My Inquiry
My Account
Microchip Technology TC7660EOA713
- Part No.:
- TC7660EOA713
- Manufacturer:
- Microchip Technology
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TC7660EOA713.pdf
- Description:
- IC REG CHARG PUMP INV 20MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,252
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TC7660EOA713 from Microchip Technology is a charge pump DC-to-DC voltage converter IC that inverts +1.5V to +10V input to corresponding -1.5V to -10V output using only two external capacitors-no inductor required. It operates at 10 kHz nominal oscillator frequency, delivers 99.9% typical voltage conversion efficiency, and features 70 Ω typical output source resistance at 25°C. It is widely used in RS-232 negative power supplies and data acquisition instrumentation.
For engineers reviewing the TC7660EOA713 datasheet, TC7660EOA713 pinout, TC7660EOA713 application, or TC7660EOA713 equivalent, key selection considerations include its extended temperature range (-40°C to +85°C), SOIC-8 narrow-body package with tape-and-reel delivery, low 80 µA typical supply current at 5V, and compatibility with simple ±5V dual-supply generation from single +5V rails.
Technical Context
The TC7660EOA713 implements a two-phase switched-capacitor inverter topology with internal RC oscillator and logic-controlled MOSFET switches. Its operation relies on charge transfer between flying (CAP+) and reservoir (CAP−/VOUT) capacitors, producing unregulated inverted output voltage linearly drooping under load.
Pin 6 (LV) enables stable oscillation below 3.5V input by grounding; Pin 7 (OSC) supports external capacitor-based frequency tuning or CMOS clock synchronization. The device lacks regulation but models as an ideal −VIN source in series with ROUT-70 Ω typ at 25°C, rising to 130 Ω at +85°C for E-suffix devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | +1.5V to +10V - supports single-supply systems from low-voltage logic up to industrial rails |
| Output Voltage | −1.5V to −10V - inverted, unregulated, linearly drooping with load current |
| Oscillator Frequency | 10 kHz nominal - fixed internal RC oscillator; adjustable via OSC pin capacitor or external clock |
| Voltage Conversion Efficiency | 99.9% typical - high charge-transfer fidelity minimizes loss in capacitor-based inversion |
| Supply Current | 80 µA typical at V+ = 5V - ultra-low quiescent draw enables battery-powered applications |
| Output Source Resistance | 70 Ω typical at 25°C - defines output droop slope (e.g., −4.3V at −10 mA with +5V input) |
| ESD Protection | ≥3 kV HBM - robust handling for manufacturing and board-level integration |
Pinout & Package
TC7660EOA713 is housed in an 8-pin narrow-body SOIC (Small Outline Integrated Circuit) package per JEDEC MS-012, 3.90 mm body width, with lead finish matte tin (Pb-free). Tape-and-reel packaging (713 suffix) supports automated SMT assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No connection | Unbonded die pad - must remain floating; no PCB trace or copper pour |
| 2 (CAP+) | Flying capacitor positive terminal | Connects to high-side plate of charge-transfer capacitor; low-ESR ceramic recommended |
| 3 (GND) | Ground reference | Common return for input, output, and internal circuitry; star-point grounding advised |
| 4 (CAP−) | Flying capacitor negative terminal | Connects to low-side plate; polarity critical if using polarized capacitor |
| 5 (VOUT) | Negative output terminal | Delivers inverted voltage; requires low-ESR reservoir capacitor to minimize ripple |
| 6 (LV) | Low-voltage oscillator enable | Must tie to GND when V+ < 3.5V; leave open otherwise to ensure reliable startup |
| 7 (OSC) | Oscillator control input | Bypass with external capacitor to reduce frequency; accepts CMOS clock for synchronization |
| 8 (V+) | Positive supply input | Accepts 1.5–10V; bypass with 0.1 µF ceramic near pin to suppress switching noise |
Key Features
| Feature | Design Value |
|---|---|
| Voltage inversion without inductors | Eliminates EMI, size, and cost penalties of magnetic components; enables ultra-thin designs |
| Only two external capacitors required | Reduces BOM count and layout complexity; supports rapid prototyping and space-constrained PCBs |
| 10 kHz nominal switching frequency | Optimizes capacitor size vs. ripple trade-off; allows use of standard 10 µF electrolytics or ceramics |
| Extended temperature range (−40°C to +85°C) | Validated performance across industrial environments without derating or thermal management |
| Improved 3 kV HBM ESD protection | Enhances manufacturability and field reliability in handling-sensitive production and end-use scenarios |
Applications
| RS-232 Transceiver Power Supply | Data Acquisition System Biasing |
|---|---|
Use Scenario: Generating −5V rail from existing +5V system supply to bias RS-232 line drivers and receivers. IC Role / Device Role / Timing Role: Charge pump inverter providing isolated negative voltage without magnetics or regulation. Use Value: Enables full-duplex RS-232 communication in microcontroller-based peripherals using only two 10 µF capacitors. |
Use Scenario: Supplying symmetric ±5V analog front-end rails for 12-bit ADCs and op-amp signal conditioning stages. IC Role / Device Role / Timing Role: Unregulated negative voltage source supporting precision analog circuitry requiring clean, low-noise bias. Use Value: Delivers stable −5V at ≤10 mA with <100 mV ripple (with proper capacitor selection), meeting SAR ADC reference requirements. |
| Portable Instrumentation Power | Dual-Supply Op-Amp Circuits |
Use Scenario: Creating compact dual-rail supplies in handheld test equipment powered by single-cell Li-ion or alkaline batteries. IC Role / Device Role / Timing Role: Low-quiescent-current inverter extending battery life while delivering −3V from 3.3V or −4.5V from 4.5V inputs. Use Value: 80 µA typical I+ enables >1-year operation on 200 mAh coin cell when paired with sleep-mode MCU. |
Use Scenario: Biasing rail-to-rail input/output op-amps in sensor interface circuits where split supplies improve dynamic range and common-mode rejection. IC Role / Device Role / Timing Role: Fixed-ratio inverter establishing matched negative rail complementary to existing positive supply. Use Value: Output impedance of 70 Ω ensures minimal gain error (<0.5%) in unity-gain buffer configurations driving 10 kΩ loads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar charge pump inverter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX1044CPA+ | Pin-compatible but requires external diodes for high-voltage operation; 12 kHz oscillator; higher 120 µA I+ | Less efficient at light loads; not qualified for extended temperature range | Prefer TC7660EOA713 for industrial temp, lower I+, and diode-free operation above 5.5V |
| ICL7660SIPAZ | SOIC-8, same pinout; improved 99.9% efficiency; 60 µA I+; but only rated 0°C to +70°C (C-suffix) | Lacks extended temperature support; better for commercial-grade consumer products | Choose TC7660EOA713 when operating beyond 70°C ambient or requiring −40°C startup capability |
Compared with MAX1044CPA+ and ICL7660SIPAZ, TC7660EOA713 uniquely combines extended temperature rating (−40°C to +85°C), diode-free high-voltage operation, and industry-leading 80 µA quiescent current-making it optimal for ruggedized portable and industrial instrumentation where reliability and efficiency coexist.
Availability
TC7660EOA713 is available at Aetrix Electronics and suitable for RS-232 transceiver power supplies, portable instrumentation, and dual-rail op-amp circuits requiring stable component supply across extended temperature ranges and automated SMT production.
Supply support for TC7660EOA713 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microchip Technology Inc. is a leading provider of microcontrollers, analog devices, and connectivity solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The TC7660 product line was designed specifically for low-cost, inductorless DC-DC voltage inversion in space- and cost-constrained applications such as legacy serial interfaces, portable test gear, and analog signal chains.
FAQ
What is the operating temperature range for TC7660EOA713?
The TC7660EOA713 is rated for −40°C to +85°C, denoted by the "E" suffix in its part number. This extended temperature range is validated per Microchip's electrical specifications and supports deployment in industrial control panels, outdoor instrumentation, and automotive under-hood auxiliary modules where ambient extremes occur.
Does TC7660EOA713 require external diodes for operation?
No, TC7660EOA713 does not require external diodes for standard voltage-inverting operation. Unlike earlier 7660 variants, its internal switch architecture eliminates the need for external diodes-even at input voltages above 5.5V-reducing BOM count and improving reliability in RS-232 and data acquisition applications.
How does the LV pin function on TC7660EOA713?
Pin 6 (LV) on TC7660EOA713 must be connected to GND when the input voltage (V+) is below 3.5V to ensure stable oscillator startup and operation. For V+ ≥ 3.5V, the LV pin should remain unconnected (open). Incorrect LV configuration may cause erratic switching or failure to start.
Can TC7660EOA713 generate positive voltage multiplication?
Yes, TC7660EOA713 can be configured for positive voltage multiplication (e.g., +5V to +10V) using two external diodes per Figure 5-6 in the datasheet. However, this mode increases component count and reduces efficiency compared to native inverting operation; it is less commonly deployed than negative rail generation.
What package type and reel specification does TC7660EOA713 use?
TC7660EOA713 uses an 8-pin narrow-body SOIC package (JEDEC MS-012, 3.90 mm width) with matte tin lead finish. The "713" suffix indicates tape-and-reel packaging per EIA-481-D standard, optimized for high-speed pick-and-place assembly with 2,500 units per reel.
TC7660EOA713 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Ratiometric
- Output Configuration:
- Positive or Negative
- Topology:
- Charge Pump
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.5V
- Voltage - Input (Max):
- 10V
- Voltage - Output (Min/Fixed):
- -Vin, 2Vin
- Voltage - Output (Max):
- -
- Current - Output:
- 20mA
- Frequency - Switching:
- 10kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TC7660EOA713 FAQ
1.How can I place an order for TC7660EOA713 through Aetrix?
Please submit a Request for Quotation (RFQ) for TC7660EOA713 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TC7660EOA713 reliable?
The price and inventory of TC7660EOA713 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC7660EOA713 is usually 5 days.
3.What payment methods are accepted for TC7660EOA713?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC7660EOA713 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC7660EOA713?
TC7660EOA713 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC7660EOA713 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TC7660EOA713?
For technical support, including TC7660EOA713 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC7660EOA713 requirements.
6.How does Aetrix verify that TC7660EOA713 is sourced from the original manufacturer or authorized distributors?
All TC7660EOA713 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TC7660EOA713 meets industry standards.
7.What is the process for return or replacement of TC7660EOA713?
All TC7660EOA713 units undergo pre-shipment inspection (PSI). If there is an issue with TC7660EOA713, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TC7660EOA713 part is unused and in its original packaging.
Return procedure for TC7660EOA713:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TC7660EOA713 Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
