Overview
The LM2832YMYX is a high-frequency, PWM step-down DC/DC converter produced by Texas Instruments. This monolithic regulator is available in 6 Pin WSON and 8 Pin eMSOP-PowerPAD packages, designed to provide local DC/DC conversion with fast transient response and accurate regulation in the smallest possible PCB area. It utilizes state-of-the-art 0.5 µm BiCMOS technology, enabling it to drive 2.0A loads with an internal 150 mΩ PMOS switch, resulting in high power density. The LM2832YMYX supports exceptionally high frequency conversion over a wide input voltage range of 3.0V to 5.5V and output voltage range of 0.6V to 4.5V.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Input Voltage Range | 3.0 to 5.5 | V |
| Output Voltage Range | 0.6 to 4.5 | V |
| Output Current | 2.0 | A |
| Switching Frequency | 0.55 MHz (LM2832Y) | MHz |
| Switch On Resistance | 150 mΩ | mΩ |
| Internal Voltage Reference | 0.6V, 2% | V |
| Operating Temperature Range | -40 to 125 | °C |
| Package Type | 6 Pin WSON, 8 Pin eMSOP-PowerPAD | |
| Quiescent Current (switching) | 2.8 to 4.5 mA | mA |
| Quiescent Current (shutdown) | 30 nA | nA |
Key Features
- Input Voltage Range of 3.0V to 5.5V
- Output Voltage Range of 0.6V to 4.5V
- 2.0A Output Current
- High Switching Frequencies: 0.55 MHz (LM2832Y), 1.6 MHz (LM2832X), 3.0 MHz (LM2832Z)
- 150 mΩ PMOS Switch
- 0.6V, 2% Internal Voltage Reference
- Internal Soft-Start Circuitry
- Current Mode, PWM Operation
- Thermal Shutdown
- Over Voltage Protection
- External Shutdown with Ultra-Low Stand-by Current of 30 nA
Applications
- Local 5V to Vcore Step-Down Converters
- Core Power in Hard Disk Drives (HDDs)
- Set-Top Boxes
- USB Powered Devices
- DSL Modems
Q & A
- What is the input voltage range of the LM2832YMYX?
The input voltage range is from 3.0V to 5.5V.
- What is the output voltage range of the LM2832YMYX?
The output voltage range is from 0.6V to 4.5V.
- What is the maximum output current of the LM2832YMYX?
The maximum output current is 2.0A.
- What are the available switching frequencies for the LM2832 series?
The switching frequencies are 0.55 MHz (LM2832Y), 1.6 MHz (LM2832X), and 3.0 MHz (LM2832Z).
- What is the on-resistance of the PMOS switch in the LM2832YMYX?
The on-resistance of the PMOS switch is 150 mΩ.
- Does the LM2832YMYX have internal soft-start circuitry?
- What protection features does the LM2832YMYX include?
The LM2832YMYX includes thermal shutdown, over-voltage protection, and pulse-by-pulse current limit.
- What is the quiescent current in shutdown mode for the LM2832YMYX?
The quiescent current in shutdown mode is 30 nA.
- What are some typical applications of the LM2832YMYX?
Typical applications include local 5V to Vcore step-down converters, core power in HDDs, set-top boxes, USB powered devices, and DSL modems.
- What is the operating temperature range of the LM2832YMYX?
The operating temperature range is from -40°C to 125°C.
