Specifications
| Type | Description |
|---|---|
| Part Number | LM2660 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Component Type | Power_IC |
| Package / Case | SOIC-8 4.90 mm x 3.91 mm; VSSOP-8 3.00 mm x 3.00 mm |
| Function | Voltage inverter or doubler; switched-capacitor charge-pump converter |
| Input Supply Voltage Range | 1.5-5.5 V; general operating range |
| Recommended Supply Voltage | 3.5-5.5 V; inverter mode, LV = open |
| Recommended Supply Voltage | 1.5-5.5 V; inverter mode, LV = GND |
| Recommended Supply Voltage | 2.5-5.5 V; doubler mode, LV = OUT |
| Output Current | 100 mA; TA <= 85 °C, OUT <= -4 V |
| Output Current | 100 mA; TA > 85 °C, OUT <= -3.8 V |
| Typical Output Resistance | 6.5 ohm; IL = 100 mA, TA <= 85 °C |
| Output Resistance | 6.5 typ, 10 max ohm; IL = 100 mA, TA <= 85 °C; includes internal switch resistance and capacitor ESR |
| Output Resistance | 12 max ohm; IL = 100 mA, TA > 85 °C |
| Supply Current | 0.12 typ, 0.5 max mA; no load, LV = open, FC = open |
| Supply Current | 1 typ, 3 max mA; no load, LV = open, FC = V+ |
| Oscillator Frequency | 5 min, 10 typ kHz; OSC = open, FC = open |
| Oscillator Frequency | 40 min, 80 typ kHz; OSC = open, FC = V+ |
| Switching Frequency | 2.5 min, 5 typ kHz; OSC = open, FC = open; switching frequency is half oscillator frequency |
| Switching Frequency | 20 min, 40 typ kHz; OSC = open, FC = V+; switching frequency is half oscillator frequency |
| OSC Input Current | +/-2 uA; FC = open |
| OSC Input Current | +/-16 uA; FC = V+ |
| Power Efficiency | 96% min, 98% typ; RL = 1 kohm between V+ and OUT |
| Power Efficiency | 92% min, 96% typ; RL = 500 ohm between GND and OUT |
| Power Efficiency | 88% typ; IL = 100 mA to GND |
| Voltage Conversion Efficiency | 99% min, 99.96% typ; no load |
| External Clock Frequency | 150 kHz max; OSC driven by external clock in inverter mode; LV must be grounded |
| External Clock Drive Level | Within 100 mV of V+ and GND; external clock applied to OSC in inverter mode |
| Absolute Maximum Supply Voltage | 6 V; V+ to GND, or GND to OUT |
| Absolute Maximum Continuous Output Current | 120 mA; V+ and OUT continuous output current |
| Output Short-Circuit Duration | 1 second; OUT shorted to GND |
| Operating Junction Temperature | -40 to 85 °C; recommended operating and absolute maximum rating |
| Storage Temperature Range | -65 to 150 °C; handling rating |
| ESD Rating | 2000 V; human body model, ANSI/ESDA/JEDEC JS-001, all pins |
| Power Dissipation | 735 mW; SOIC(D) package |
| Power Dissipation | 500 mW; VSSOP(DGK) package |
| Junction-to-Ambient Thermal Resistance | 170 °C/W; SOIC(D), 8 pins |
| Junction-to-Ambient Thermal Resistance | 250 °C/W; VSSOP(DGK), 8 pins |
| Lead Temperature | 300 °C; soldering, 10 seconds |
| Charge Pump Capacitors | 150 uF; C1 = C2 = 150 uF, maximum ESR 0.2 ohm |
| Datasheet Status | request_only |
Product Overview
The LM2660 is a Texas Instruments switched-capacitor charge-pump converter for voltage inversion or voltage doubling. Its general input supply voltage range is 1.5-5.5 V, with recommended supply ranges specified by operating mode: 3.5-5.5 V for inverter mode with LV open, 1.5-5.5 V for inverter mode with LV connected to GND, and 2.5-5.5 V for doubler mode with LV connected to OUT.
Output capability is specified at 100 mA, with OUT <= -4 V at TA <= 85 °C and OUT <= -3.8 V above 85 °C. Output resistance is 6.5 ohm typical and 10 ohm maximum at 100 mA up to 85 °C, and 12 ohm maximum above 85 °C. No-load supply current depends on FC connection, from 0.12 mA typical with FC open to 1 mA typical with FC tied to V+.
Package options include SOIC-8 and VSSOP-8 footprints. The device has a -40 to 85 °C operating junction temperature range, 2000 V HBM ESD rating, and package-specific power dissipation and thermal resistance ratings.
Key Features
- Voltage inverter or doubler charge-pump operation
- General 1.5-5.5 V input supply range
- 100 mA output current under specified conditions
- 6.5 ohm typical output resistance at 100 mA
- Selectable oscillator frequency through FC pin connection
- External clock operation up to 150 kHz
- 99.96% typical no-load voltage conversion efficiency
- SOIC-8 and VSSOP-8 package options
- -40 to 85 °C operating junction range
- 150 uF charge-pump capacitors used in test conditions
Typical Applications
- Voltage inverter circuits
- Voltage doubler circuits
- Switched-capacitor charge-pump rails
- 100 mA negative output supplies
- Externally clocked inverter designs
- SOIC-8 power-management layouts
- VSSOP-8 compact power layouts
Procurement Notes
When requesting a quote for LM2660, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For power IC and power device sourcing, voltage rating, current rating, power dissipation, package thermal performance, protection features, qualification grade and application conditions should be reviewed before approval.
FAQ
What function does the LM2660 provide?
The LM2660 is a switched-capacitor charge-pump converter from Texas Instruments. The extracted datasheet facts identify its function as voltage inverter or doubler operation.
What input voltage range does LM2660 support?
The general input supply voltage range is 1.5-5.5 V. Recommended supply ranges vary by mode: 3.5-5.5 V with LV open in inverter mode, 1.5-5.5 V with LV grounded in inverter mode, and 2.5-5.5 V in doubler mode.
What output current is specified for LM2660?
The LM2660 output current is specified as 100 mA. The condition is OUT <= -4 V at TA <= 85 °C, and OUT <= -3.8 V when TA is greater than 85 °C.
Which package options are listed for LM2660?
The extracted package information lists SOIC-8 at 4.90 mm x 3.91 mm and VSSOP-8 at 3.00 mm x 3.00 mm. Package-related ratings include 735 mW for SOIC(D) and 500 mW for VSSOP(DGK).
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 25, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.