LMR16030P
Synchronous Buck ConverterThe LMR16030P is a synchronous buck converter from Texas Instruments. View the full LMR16030P datasheet below including electrical characteristics, absolute maximum ratings.
Manufacturer
Texas Instruments
Category
Synchronous Buck Converter
Overview
Part: LMR16030 — Texas Instruments
Type: Synchronous Buck Converter
Description: The LMR16030 is a 60V, 3A SIMPLE SWITCHER® buck regulator with an integrated high-side MOSFET, featuring a wide input voltage range of 4.3V to 60V and an ultra-low 40μA quiescent current.
Operating Conditions:
- Supply voltage: 4.3V to 60V
- Operating junction temperature: -40 to 125 °C
- Output voltage: 0.8V to 50V
- Switching frequency range (RT mode): 200 kHz to 2.5 MHz
Absolute Maximum Ratings:
- Max supply voltage (VIN, EN to GND): 65 V
- Max SW to GND voltage: 65 V
- Max junction temperature: 150 °C
- Max storage temperature: 150 °C
Key Specs:
- Continuous output current: 3 A
- Quiescent current (non-switching): 40 μA (typ) at VFB = 1.0 V, TA = 25 °C
- Shutdown supply current: 1 μA (typ) at VEN = 0 V, TA = 25 °C
- High-side MOSFET on-resistance: 155 mΩ (typ) at VIN = 12 V, BOOT to SW = 5.8 V
- Current limit: 4.75 A (typ) at VIN = 12 V, TA = 25 °C
- Feedback voltage: 0.75 V (typ) at TJ = 25 °C
- Thermal shutdown threshold: 170 °C (typ)
- Maximum duty cycle: 97% (at fSW = 200 kHz)
Features:
- Current mode control
- Adjustable switching frequency range: 200kHz to 2.5MHz
- External clock synchronization
- Internal compensation
- High duty cycle operation support
- Precision enable pin
- Thermal, overvoltage, and short-circuit protection
- Sleep-mode at light load for high efficiency
Applications:
- Automotive battery regulation
- Industrial power supplies
- Telecom and datacom systems
- General purpose wide input voltage regulation
Package:
- HSOIC (8) (4.89mm x 3.90mm)
Pin Configuration
Electrical Characteristics
Limits apply over the recommended operating junction temperature (TJ) range of -40 °C to +125 °C, unless otherwise stated. Minimum and Maximum limits are specified through test, design or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25 °C, and are provided for reference purposes only. Unless otherwise specified, the following conditions apply: VIN = 4.3 V to 60 V
| PARAMETER | PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT |
|---|---|---|---|---|---|---|
| POWER SUPPLY (VIN PIN) | POWER SUPPLY (VIN PIN) | |||||
| V IN | Operation input voltage | 4.3 | 60 | V | ||
| UVLO | Under voltage lockout thresholds | Rising threshold | 3.8 | 4 | 4.2 | V |
| UVLO | Under voltage lockout thresholds | Hysteresis | 285 | mV | ||
| I SHDN | Shutdown supply current | V EN = 0 V, T A = 25 °C, 4.3 V ≤ V IN ≤ 60 V | 1 | 3 | μ A | |
| I Q | Operating quiescent current (non- switching) | V FB = 1.0 V, T A = 25 °C | 40 | μ A | ||
| ENABLE (EN PIN) | ENABLE (EN PIN) | |||||
| V EN_TH | EN Threshold Voltage | 1.05 | 1.2 | 1.38 | V | |
| I EN_PIN | EN PIN current | Enable threshold +50 mV | -4.6 | μ A | ||
| I EN_PIN | EN PIN current | Enable threshold -50 mV | -1 | |||
| I EN_HYS | EN hysteresis current | -3.6 | μ A | |||
| SOFT-START | SOFT-START | |||||
| I SS | SS pin current | For External Soft-Start version only, T A = 25 °C | -3 | μ A | ||
| t SS | Internal soft-start time | For Power-Good version only, 10% to 90% of FB voltage | 4 | ms | ||
| POWER GOOD (PGOOD PIN) | POWER GOOD (PGOOD PIN) | |||||
| V PG_UV | Power-good flag under voltage tripping threshold | POWER GOOD (% of FB voltage) | 94 | % | ||
| V PG_UV | Power-good flag under voltage tripping threshold | POWER BAD (% of FB voltage) | 92 | % | ||
| V PG_OV | Power-good flag over voltage tripping threshold | POWER BAD (% of FB voltage) | 109 | % | ||
| V PG_OV | Power-good flag over voltage tripping threshold | POWER GOOD (% of FB voltage) | 107 | % | ||
| V PG_HYS | Power-good flag recovery hysteresis | % of FB voltage | 2 | % | ||
| I PG | PGOOD leakage current at high level output | V Pull-Up = 5 V | 10 | 200 | nA | |
| V PG_LOW | PGOOD low level output voltage | I Pull-Up = 1 mA | 0.1 | V | ||
| V IN_PG_MIN | Minimum VIN for valid PGOOD output | V Pull-Up < 5 V at I Pull-Up = 100 μ A | 1.6 | 1.95 | V | |
| VOLTAGE REFERENCE (FB PIN) | VOLTAGE REFERENCE (FB PIN) | |||||
| V FB | Feedback voltage | T J = 25 °C | 0.746 | 0.75 | 0.754 | V |
| V FB | Feedback voltage | T J = -40 °C to 125 °C | 0.735 | 0.75 | 0.765 | V |
Absolute Maximum Ratings
Over the recommended operating junction temperature range of -40 °C to 125 °C (unless otherwise noted) (1)
| MIN | MAX | UNIT | ||
|---|---|---|---|---|
| Input Voltages | VIN, EN to GND | -0.3 | 65 | V |
| Input Voltages | BOOT to GND | -0.3 | 71 | V |
| Input Voltages | SS to GND | -0.3 | 5 | V |
| Input Voltages | FB to GND | -0.3 | 7 | V |
| Input Voltages | RT/SYNC to GND | -0.3 | 3.6 | V |
| Input Voltages | PGOOD to GND | -0.3 | 7 | V |
| Output Voltages | BOOT to SW | 6.5 | V | |
| Output Voltages | SW to GND | -3 | 65 | V |
| T J | Junction temperature | -40 | 150 | °C |
| T stg | Storage temperature | -65 | 150 | °C |
Recommended Operating Conditions
Over the recommended operating junction temperature range of -40 °C to 125 °C (unless otherwise noted) (1)
| MIN | MAX | UNIT | ||
|---|---|---|---|---|
| Buck Regulator | VIN | 4.3 | 60 | V |
| Buck Regulator | VOUT | 0.8 | 50 | V |
| Buck Regulator | BOOT | 66 | V | |
| Buck Regulator | SW | -1 | 60 | V |
| Buck Regulator | FB | 0 | 5 | V |
| Control | EN | 0 | 60 | V |
| Control | RT/SYNC | 0 | 3.3 | V |
| Control | SS | 0 | 3 | V |
| Control | PGOOD to GND | 0 | 5 | V |
| Frequency | Switching frequency range at RT mode | 200 | 2500 | kHz |
| Frequency | Switching frequency range at SYNC mode | 250 | 2300 | kHz |
| Temperature | Operating junction temperature, T J | -40 | 125 | °C |
Thermal Information
| THERMAL METRIC (1) (2) | LMR16030 DDA (HSOIC) 8 PINS | UNIT | |
|---|---|---|---|
| R θ JA | Junction-to-ambient thermal resistance | 42.5 | °C/W |
| ψ JT | Junction-to-top characterization parameter | 9.9 | °C/W |
| ψ JB | Junction-to-board characterization parameter | 25.4 | °C/W |
| R θ JC(top) | Junction-to-case (top) thermal resistance | 56.1 | °C/W |
| R θ JC(bot) | Junction-to-case (bottom) thermal resistance | 3.8 | °C/W |
| R θ JB | Junction-to-board thermal resistance | 25.5 | °C/W |
Typical Application
The LMR16030 is a step down DC-to-DC regulator. It is typically used to convert a higher DC voltage to a lower DC voltage with a maximum output current of 3 A. The following design procedure can be used to select components for the LMR16030. This section presents a simplified discussion of the design process.
Related Variants
The following components are covered by the same datasheet.
| Part Number | Manufacturer | Package |
|---|---|---|
| LMR16030 | Texas Instruments | HSOIC (8) |
| LMR16030PDDA | Texas Instruments | — |
| LMR16030PDDAR | Texas Instruments | HSOIC (8) |
| LMR16030S | Texas Instruments | — |
| LMR16030SDDA | Texas Instruments | — |
| LMR16030SDDAR | Texas Instruments | HSOIC (8) |
Get structured datasheet data via API
Get started free