SGM6601
High-side load switch featuring 60mΩ on-resistance and controlled slew rate for power domain switching applications
Product Overview
Description
The SGM6601 is a high-side load switch with low on-resistance and controlled turn-on slew rate.
With 60mΩ typical on-resistance and 2A current capability, it efficiently switches power rails with minimal voltage drop.
The device features controlled slew rate to limit inrush current and comprehensive protection features.
Product Series
SGM
Primary Application
Power domain switching
Key Features
- Low 60mΩ on-resistance at 5V
- 2A continuous current capability
- Controlled slew rate limits inrush current
- Ultra-low 0.5μA quiescent current
- Current limiting protection
- Short-circuit protection
- Thermal shutdown protection
- Reverse current blocking
Specifications
| Input Voltage | 1.5V to 5.5V |
|---|---|
| Output Current | Up to 2A |
| On-Resistance | 60mΩ (typ) |
| Quiescent Current | 0.5μA (typ) |
| Slew Rate | 1ms rise time |
| Current Limit | 2.5A (typ) |
| Thermal Shutdown | 150°C |
| Package | SOT-23-5, SC-70-5 |
Applications
Power domain switching
Electronic system design
Battery-powered devices
Battery and charging management
Portable electronics
Electronic system design
IoT sensors
Sensor signal conditioning
Power sequencing
Electronic system design
FAE Expert Insights
"The SGM6601 is my preferred load switch for battery-powered applications. The 60mΩ on-resistance is excellent for this class of device - it minimizes voltage drop and power loss when switching 1A+ loads. The controlled slew rate is a key feature - it limits inrush current when charging large capacitors, preventing system voltage droop. I've used this part extensively in IoT devices where power sequencing is critical. The ultra-low 0.5μA quiescent current when off makes it ideal for battery applications where circuits need to be completely powered down. The current limiting provides additional protection against short circuits. One design tip: the input capacitor should be larger than the output capacitor to prevent Vout from exceeding Vin during fast turn-off. Overall, an excellent load switch with great value."
Low-resistance load switch with excellent inrush current control and ultra-low quiescent current
— Jennifer Liu, BeiLuo
Frequently Asked Questions
What is the on-resistance of SGM6601?
The SGM6601 features 60mΩ typical on-resistance at 5V input. At 3.3V, resistance is approximately 80mΩ. This low resistance minimizes voltage drop and power dissipation when switching loads. The low on-resistance minimizes voltage drop and power dissipation when switching loads. Calculate voltage drop and power dissipation based on your load current requirements.
Calculate voltage drop (Iload × Rds_on) and power dissipation (I² × Rds_on) for your application.
How does the slew rate control work on SGM6601?
SGM6601 features internal slew rate control with ~1ms rise time. This limits inrush current when charging output capacitors, preventing input voltage droop and EMI issues. This limits inrush current when charging output capacitors, preventing input voltage droop and EMI issues during power-up.
The built-in slew rate control eliminates need for external RC networks. Suitable for most applications with capacitive loads.
What is the quiescent current of SGM6601?
SGM6601 draws only 0.5μA typical when off (switch open) and 15μA when on. The ultra-low off-state current makes it ideal for battery-powered applications. The ultra-low off-state current makes the SGM6601 ideal for battery-powered applications requiring power gating and load switching.
SGM6601's ultra-low quiescent current is excellent for battery-powered designs requiring power gating.
What protection features does SGM6601 include?
SGM6601 includes current limiting (2.5A typical), short-circuit protection, thermal shutdown (150°C), and reverse current blocking. These features protect both the switch and downstream circuitry. These features protect both the switch and downstream circuitry under various fault conditions including overloads and short circuits.
SGM6601 includes comprehensive protection for reliable operation in various fault conditions.
Can SGM6601 switch high capacitive loads?
Yes, the controlled slew rate allows SGM6601 to switch capacitive loads up to 100μF without excessive inrush current. For larger capacitors, consider adding external current limiting. For larger capacitors, consider adding external current limiting or soft-start circuitry to prevent excessive inrush current during turn-on.
SGM6601 handles typical system capacitance well. Contact LiTong for applications with >100μF load capacitance.