Overview
The LMR16030SDDA is a 60-V, 3-A SIMPLE SWITCHER step-down regulator produced by Texas Instruments. This device integrates a high-side MOSFET and is designed for a wide range of applications, including industrial and automotive systems, where power conditioning from unregulated sources is necessary. The regulator features a wide input voltage range of 4.3 V to 60 V and delivers up to 3 A of continuous output current. It is particularly suited for battery-powered systems due to its ultra-low quiescent current of 40 µA in sleep mode and 1 µA in shutdown mode, which helps prolong battery life. The LMR16030SDDA is available in an 8-pin HSOIC package with an exposed pad for low thermal resistance.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 4.3 V to 60 V |
| Output Current | Up to 3 A |
| Quiescent Current (Sleep Mode) | 40 µA |
| Quiescent Current (Shutdown Mode) | 1 µA |
| High-Side MOSFET Resistance | 155 mΩ (typical) |
| Switching Frequency Range | 200 kHz to 2.5 MHz |
| Operating Temperature Range | -40°C to 125°C |
| Package Type | 8-pin HSOIC with PowerPAD™ |
Key Features
- Wide input voltage range from 4.3 V to 60 V
- Up to 3 A continuous output current
- Ultra-low quiescent current: 40 µA in sleep mode and 1 µA in shutdown mode
- Integrated high-side MOSFET with 155 mΩ resistance
- Current mode control with adjustable switching frequency from 200 kHz to 2.5 MHz
- Frequency synchronization to external clock from 250 kHz to 2.3 MHz
- Internal loop compensation for ease of use and minimal external components
- Precision enable input for simplified regulator control and system power sequencing
- High duty cycle operation supported with approximately 97% duty cycle
- Thermal, overvoltage, and short-circuit protection features
- External soft-start pin for programmable output ramp-up time
Applications
The LMR16030SDDA is suitable for a variety of applications, including:
- Industrial power systems requiring power conditioning from unregulated sources
- Automotive systems where robust and efficient power conversion is necessary
- Battery-powered systems where low quiescent current is crucial for prolonging battery life
- General-purpose DC-DC conversion in various electronic devices
Q & A
- What is the input voltage range of the LMR16030SDDA?
The input voltage range is from 4.3 V to 60 V.
- What is the maximum output current of the LMR16030SDDA?
The maximum output current is up to 3 A.
- What is the quiescent current in sleep mode and shutdown mode?
The quiescent current is 40 µA in sleep mode and 1 µA in shutdown mode.
- What is the resistance of the integrated high-side MOSFET?
The resistance of the integrated high-side MOSFET is 155 mΩ (typical).
- Can the switching frequency be adjusted?
- Does the LMR16030SDDA support frequency synchronization to an external clock?
- What protection features are included in the LMR16030SDDA?
The device includes thermal, overvoltage, and short-circuit protection features.
- How is the soft-start time programmed in the LMR16030SDDA?
The soft-start time can be programmed by connecting an external capacitor to the SS pin.
- What is the operating temperature range of the LMR16030SDDA?
The operating temperature range is from -40°C to 125°C.
- In what package is the LMR16030SDDA available?
The device is available in an 8-pin HSOIC package with PowerPAD™.
