Key facts
- Brand
- STMicroelectronics
- Model
- PM8903
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-10
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STMicroelectronics PM8903 3 A Step-Down Monolithic Switching Regulator Datasheet
The PM8903 is a high-efficiency monolithic step-down switching regulator designed to deliver up to 3 A of continuous output current. It operates with an input voltage range of 2.8 V to 6 V and features low-resistance integrated nMOS power switches. The device includes a proprietary pulse-skipping mode to optimize efficiency across all loading ranges and offers adjustable output voltage down to 0.6 V with 1% accuracy.
Read onlineSTMicroelectronics PM8903 specifications
| Continuous output current | 3 A |
|---|---|
| Input voltage range | 2.8 V to 6 V |
| Supply voltage range | 2.9 V to 5.5 V |
| Switching frequency | 1.1 MHz |
| Output voltage accuracy | 1% |
| Minimum output voltage | 0.6 V |
| HS MOSFET RDS(on) | 35 mΩ |
| Maximum junction temperature | 150 °C |
| Package type | VFQFPN16 3 x 3 mm |
Source: STMicroelectronics PM8903 3 A Step-Down Monolithic Switching Regulator Datasheet
All STMicroelectronics PM8903 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
How to use the product for one specific task, with worked examples.
Questions answered in these manuals
What is the switching frequency of the PM8903?
The switching frequency is typically set to 1.1 MHz and can be programmed to 0.8 MHz or 1.0 MHz.
From: STMicroelectronics PM8903 3 A Step-Down Monolithic Switching Regulator Datasheet
Does the PM8903 support synchronization?
Yes, it supports interleaving synchronization with up to 2 ICs to reduce input RMS current.
From: STMicroelectronics PM8903 3 A Step-Down Monolithic Switching Regulator Datasheet
What is the maximum continuous current this regulator can deliver?
The PM8903 can deliver up to 3 A of continuous current.
From: STMicroelectronics AN4086 Application Note Buck Voltage Regulator Using PM8903
What is the input voltage range for this device?
The regulator accepts an input voltage ranging from 2.8 V to 6 V.
From: STMicroelectronics AN4086 Application Note Buck Voltage Regulator Using PM8903