Specifications
| Type | Description |
|---|---|
| Part Number | TPS65218 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Package / Case | VQFN (48) 6.00 mm x 6.00 mm; HTQFP (48) 7.00 mm x 7.00 mm |
| Device Function | Single-chip power management IC; designed for portable Li-ion battery and non-portable 5-V adapter applications |
| Supported Processor / Application Class | ARM Cortex-A8/A9 SoCs and FPGA for power management target applications |
| Operating Temperature Range | -40°C to +105°C; device characterized temperature range |
| DCDC Converter Count | 3 adjustable step-down converters; DCDC1, DCDC2, DCDC3 with integrated switching FETs |
| DCDC1 Default Output Voltage | 1.1 V; default setting |
| DCDC1 Output Current | Up to 1.8 A; step-down converter DCDC1 |
| DCDC2 Default Output Voltage | 1.1 V; default setting |
| DCDC2 Output Current | Up to 1.8 A; step-down converter DCDC2 |
| DCDC3 Default Output Voltage | 1.2 V; default setting |
| DCDC3 Output Current | Up to 1.8 A; step-down converter DCDC3 |
| DCDC1-DCDC3 Input Voltage Range | 2.7 V to 5.5 V; VIN range for DCDC1, DCDC2, and DCDC3 |
| DCDC1-DCDC2 Adjustable Output Voltage Range | 0.85 V to 1.675 V; adjustable range for DCDC1 and DCDC2 |
| DCDC3 Adjustable Output Voltage Range | 0.9 V to 3.4 V; adjustable range for DCDC3 |
| Step-Down Converter Light-Load Mode | Power save mode at light load current |
| Step-Down Converter Duty Cycle | 100% duty cycle for lowest dropout operation |
| Step-Down Converter Output Discharge | Active output discharge when disabled |
| DCDC4 Converter Type | Adjustable buck-boost converter with integrated switching FETs; DCDC4 |
| DCDC4 Default Output Voltage | 3.3 V; default setting |
| DCDC4 Output Current | Up to 1.6 A; buck-boost converter DCDC4 |
| DCDC4 Input Voltage Range | 2.7 V to 5.5 V; VIN range for DCDC4 |
| DCDC4 Adjustable Output Voltage Range | 1.175 V to 3.4 V; adjustable range for DCDC4 |
| DCDC4 Output Discharge | Active output discharge when disabled |
| Battery-Backup Converter Count | 2 low-quiescent-current high-efficiency step-down converters; DCDC5 and DCDC6 backup domain |
| DCDC5 Output Voltage | 1 V; battery backup supply output |
| DCDC6 Output Voltage | 1.8 V; battery backup supply output |
| DCDC5-DCDC6 Input Voltage Range | 2.2 V to 5.5 V; VIN range for battery backup converters |
| DCDC5-DCDC6 Supply Source | System power or coin-cell backup battery; backup domain supply source |
| LDO1 Type | Adjustable general-purpose LDO; low-dropout regulator LDO1 |
| LDO1 Default Output Voltage | 1.8 V; default setting |
| LDO1 Output Current | Up to 400 mA; general-purpose LDO1 |
| LDO1 Input Voltage Range | 1.8 V to 5.5 V; VIN range for LDO1 |
| LDO1 Adjustable Output Voltage Range | 0.9 V to 3.4 V; adjustable range for LDO1 |
| LDO1 Output Discharge | Active output discharge when disabled |
| LS1 Load Switch Type | Low-voltage load switch; LS1 |
| LS1 Current Limit | 350 mA; low-voltage load switch LS1 |
| LS1 Input Voltage Range | 1.2 V to 3.6 V; VIN range for LS1 |
| LS1 Switch Impedance | 110 mΩ max at 1.35 V |
| LS2 Load Switch Type | 5-V load switch; LS2 |
| LS2 Current Limit | 100 mA or 500 mA selectable; 5-V load switch LS2 |
| LS2 Input Voltage Range | 4 V to 5.5 V; VIN range for LS2 |
| LS2 Switch Impedance | 500 mΩ max at 5 V |
| LS3 Load Switch Type | High-voltage load switch; LS3 |
| LS3 Current Limit | 100 mA or 500 mA selectable; high-voltage load switch LS3 |
| LS3 Input Voltage Range | 1.8 V to 10 V; VIN range for LS3 |
| LS3 Switch Impedance | 500 mΩ max; high-voltage load switch LS3 |
| DCDC1-DCDC2 Tolerance | ±4%; built-in supervisor function monitors |
| DCDC3-DCDC4 Tolerance | ±5%; built-in supervisor function monitors |
| LDO1 Tolerance | ±5%; built-in supervisor function monitors |
| Protection Feature | Undervoltage lockout (UVLO); protection, diagnostics, and control |
| Control Feature | Always-on push-button monitor; protection, diagnostics, and control |
| Thermal Protection | Overtemperature warning and shutdown; protection, diagnostics, and control |
| Power-Good Outputs | Separate power-good output for backup and main supplies |
| I2C Address | 0x24; I2C interface |
| I2C Operating Frequency | 400 kHz; see timing requirements for I2C operation |
| Package Option | VQFN (48), 6.00 mm x 6.00 mm nominal body size |
| Package Option | HTQFP (48), 7.00 mm x 7.00 mm nominal body size |
| Datasheet Status | request_only |
Product Overview
Texas Instruments TPS65218 is a single-chip power management IC for portable Li-ion battery designs and non-portable systems powered from a 5-V adapter. It targets ARM Cortex-A8/A9 SoCs and FPGA applications, with operation characterized across -40°C to +105°C.
The device combines DCDC1, DCDC2, and DCDC3 adjustable step-down converters with integrated switching FETs, each rated up to 1.8 A. DCDC1 and DCDC2 default to 1.1 V and adjust from 0.85 V to 1.675 V, while DCDC3 defaults to 1.2 V and adjusts from 0.9 V to 3.4 V. DCDC4 is an adjustable buck-boost converter, defaults to 3.3 V, and supports up to 1.6 A.
Additional rails include DCDC5 at 1 V, DCDC6 at 1.8 V, LDO1 at 1.8 V by default, and LS1, LS2, and LS3 load switches. The device supports I2C control at address 0x24 and 400 kHz operation, with VQFN and HTQFP 48-pin package options.
Key Features
- Single-chip PMIC for Li-ion and 5-V adapter systems
- Targets ARM Cortex-A8/A9 SoCs and FPGA designs
- Three adjustable 1.8-A step-down converters with integrated FETs
- Adjustable 1.6-A buck-boost converter defaults to 3.3 V
- Two backup step-down converters for system or coin-cell supply
- Adjustable 400-mA LDO with active output discharge
- Three load switches covering low-voltage, 5-V, and high-voltage rails
- UVLO, overtemperature warning, and overtemperature shutdown included
- Separate power-good outputs for backup and main supplies
- I2C interface at address 0x24 with 400-kHz operation
Typical Applications
- ARM Cortex-A8/A9 SoC power
- FPGA power management
- Portable Li-ion battery systems
- Non-portable 5-V adapter systems
- Backup supply domains
- Coin-cell backup powered rails
- Multi-rail embedded power sequencing
Procurement Notes
When requesting a quote for TPS65218, 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 type of power device is the TPS65218?
The TPS65218 is a Texas Instruments single-chip power management IC for portable Li-ion battery applications and non-portable 5-V adapter applications. It targets ARM Cortex-A8/A9 SoCs and FPGA power management.
Which regulators are integrated in the TPS65218?
The device integrates three adjustable step-down converters, one adjustable buck-boost converter, two low-quiescent-current backup step-down converters, one adjustable general-purpose LDO, and three load switches.
What are the TPS65218 package options?
The TPS65218 is available in a 48-pin VQFN package with 6.00 mm x 6.00 mm nominal body size and a 48-pin HTQFP package with 7.00 mm x 7.00 mm nominal body size.
What digital interface does the TPS65218 use?
The TPS65218 includes an I2C interface with address 0x24. The extracted timing information lists 400 kHz as the operating frequency for I2C operation.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 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.