Features
- Input voltage range of 1.7V to 5.5V
- Unlimited daisy chaining (cascaded sequencer)
- Up to eight rails sequenced
- Up to eight voltages monitored
- Reverse or simultaneous power-down
- System programmable sequence delay
- Programmable power-on threshold (VSEQON_TH)
- Programmable options for power-off thresholds (VSEQOFF_TH)
- Pb-free/RoHS-compliant
- Halogen-free
- STQFN-20 package
SLG7SQ50538V Block Diagram
Description
The SLG7SQ50538V is a compact 8-rail cascaded power sequencer designed to manage complex multi-rail power systems with controlled startup, shutdown, and fault handling. It supports up to eight power rails through a combination of push-pull and open-drain outputs, while providing integrated Power OK (POK), DONE, and fault monitoring signals for system status and protection. With configurable sequencing thresholds and cascaded operation capability, the device simplifies power management and improves reliability in high-performance embedded and industrial systems.
For custom configurations, visit GreenPAK™ Programmable Mixed-Signal Products.
Parameters
| Attributes | Value |
|---|---|
| Monitored Inputs | 5 |
| Bias Voltage Range (V) | 1.71 - 5.5 |
| Sequenced Voltages | 1.71 - 5.5 |
| Enable | Active High |
| Initial Startup Requirements | x1 UVLO, x1 ON/OFF, xN V_SET, x1 FAULT_IN |
| Power Down Sequencing | Yes |
| Logic Level (s) | CMOS |
| Preset Or Adjustable Sequence | Preset Order |
| Sequenced Output Control | Push Pull, Open Drain NMOS |
| Advanced Features | Configurable Hardware Device |
Package Options
| Pkg. Type | Lead Count (#) |
|---|---|
| STQFN | 20 |
Product Comparison
| SLG7SQ50538 | SLG7SQ50521 | SLG7SQ50533 | SLG7SQ50537 | |
| Pkg. Type | STQFN | STQFN | STQFN | STQFN |
| Lead Count (#) | 20 | 14 | 14 | 14 |
| Bias Voltage Range | 1.71 - 5.5 | 2.3 - 5.5 | 2.3 - 5.5 | 2.3 - 5.5 |
| Enable | Active High | Active High | Active High | Active High |
| Preset Or Adjustable Sequence | Preset Order | Preset Order, Adjustable Delay | Without a regulated sequence | Preset Order, Adjustable Delay |
| Sequenced Output Control | Open Drain NMOS, Push Pull | Push Pull | Push Pull | Open Drain NMOS |
| Advanced Features | Configurable Hardware Device | Configurable Hardware Device, I2C compatible | Configurable Hardware Device | Configurable Hardware Device, I2C compatible |
Applications
- Computing and storage systems
- Networking and communications equipment
- Telecommunications infrastructure
- FPGA and ASIC platforms
- Industrial automation and control systems
- Server and data center equipment
- AI accelerator and graphics cards
- Fault-tolerant multi-rail power management subsystems
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