Specifications
| Type | Description |
|---|---|
| Part Number | LM61460 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Component Type | Power_IC |
| Package / Case | 14-pin VQFN-HR (RJR), 4.00 mm x 3.50 mm body |
| Input Voltage Range | 3.0-36 V; recommended operating range after start-up |
| Input Transient Tolerance | 42 V; device supports 42-V transients |
| Output Current | 0-6 A; recommended output DC current range |
| Output Voltage Range | 1 V to 0.95 x VIN; adjustable version, recommended operating conditions |
| Switching Frequency Range | 200-2200 kHz; frequency adjustment range |
| Synchronization Frequency Range | 200-2200 kHz; external synchronization on EN/SYNC pin |
| Operating Junction Temperature | -40 to 150 °C; recommended operating conditions |
| Total Output Regulation Accuracy | ±1%; device feature |
| Dropout Voltage | 0.4 V typical; 4-A load |
| No-Load Current | 7 µA typical; VIN=13.5 V, VOUT=3.3 V |
| PFM Efficiency | 83%; IOUT=1 mA, VIN=13.5 V, VOUT=5 V |
| High-Side MOSFET On Resistance | 41 mOhm typical |
| Low-Side MOSFET On Resistance | 21 mOhm typical |
| Input Operating Voltage Needed to Start | 3.95 V; VIN1 shorted to VIN2, VIN=13.5 V unless otherwise stated |
| Input Operating Voltage Once Operating | 3.0 V; electrical characteristics |
| Input Operating Voltage Hysteresis | 1 V; electrical characteristics |
| Operating Quiescent Current Not Switching | 9 µA typ, 18 µA max; VFB=+5%, VBIAS=5 V |
| Absolute Maximum VIN1/VIN2 Voltage | -0.3 to 42 V; VIN1, VIN2 to AGND, PGND |
| Absolute Maximum BIAS Voltage | -0.3 to 16 V; BIAS to AGND, PGND |
| Absolute Maximum EN/SYNC Voltage | -0.3 to 42 V; EN/SYNC to AGND, PGND |
| Absolute Maximum PGOOD Voltage | 0 to 20 V; PGOOD to AGND, PGND |
| PGOOD Sink Current | 10 mA max; absolute maximum rating |
| VCC Output Voltage Rating | -0.3 to 5.5 V; VCC to AGND, PGND absolute maximum |
| Human Body Model ESD Rating | ±2000 V; HBM electrostatic discharge rating |
| Charged Device Model ESD Rating | ±500 V; CDM electrostatic discharge rating |
| Junction-to-Ambient Thermal Resistance | 25 °C/W; LM61460-Q1 EVM |
| Junction-to-Ambient Thermal Resistance | 58.7 °C/W; JESD 51-7, 4-layer JEDEC board |
| Junction-to-Case Top Thermal Resistance | 26.1 °C/W; RJR QFN, 14 pins |
| Junction-to-Board Thermal Resistance | 19.2 °C/W; RJR QFN, 14 pins |
| Light Load Mode | Auto Mode; LM61460AANRJRR orderable part number |
| Spread Spectrum | No; LM61460AANRJRR orderable part number |
| Datasheet Status | request_only |
Product Overview
The LM61460 is a Texas Instruments synchronous step-down converter for Power_Management designs requiring a regulated DC output from a higher input rail. After start-up, the recommended input voltage range is 3.0-36 V, while the device supports 42 V input transients. The recommended output DC current range is 0-6 A, and the adjustable output voltage range is 1 V to 0.95 x VIN.
Frequency control is provided through a 200-2200 kHz switching-frequency adjustment range, with the same 200-2200 kHz range available for external synchronization on the EN/SYNC pin. The device specifies ±1% total output regulation accuracy, 0.4 V typical dropout at a 4 A load, 7 µA typical no-load current at VIN=13.5 V and VOUT=3.3 V, and 83% PFM efficiency at IOUT=1 mA with VIN=13.5 V and VOUT=5 V.
The package is a 14-pin VQFN-HR (RJR) with a 4.00 mm x 3.50 mm body. Thermal data includes 25 °C/W junction-to-ambient resistance on the LM61460-Q1 EVM and 58.7 °C/W on a JESD 51-7, 4-layer JEDEC board.
Key Features
- 3.0-36 V recommended input range after start-up
- 42 V input transient tolerance
- 0-6 A recommended output DC current range
- Adjustable 1 V to 0.95 x VIN output range
- 200-2200 kHz switching-frequency adjustment
- 200-2200 kHz synchronization on EN/SYNC
- -40 to 150 °C operating junction temperature
- ±1% total output regulation accuracy
- 0.4 V typical dropout at 4 A
- 7 µA typical no-load current
Typical Applications
- 3.0-36 V step-down rails
- 6 A DC output rails
- Adjustable 1 V output supplies
- Externally synchronized power rails
- Low no-load-current power designs
- High-junction-temperature power stages
- VQFN-HR board-level converter designs
Procurement Notes
When requesting a quote for LM61460, 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 input voltage range does LM61460 support after start-up?
The LM61460 recommended operating input range after start-up is 3.0-36 V. The extracted facts also state that the device supports 42 V input transients.
What output current and voltage ranges are specified for LM61460?
The recommended output DC current range is 0-6 A. For the adjustable version, the recommended output voltage range is 1 V to 0.95 x VIN.
What switching and synchronization frequencies are available?
The LM61460 has a 200-2200 kHz switching-frequency adjustment range. External synchronization on the EN/SYNC pin is also specified over 200-2200 kHz.
What package is used for the LM61460?
The package listed for LM61460 is a 14-pin VQFN-HR (RJR) with a 4.00 mm x 3.50 mm body. Thermal data is provided for the RJR QFN, 14-pin package.
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.