UPSD3433E-40U6

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Power Supply Unit (PSU) Controller
• Characteristics:
  • High efficiency
  • Low power consumption
  • Compact size
  • Wide input voltage range
• Package: QFN-32 (Quad Flat No-Lead)
• Essence: Regulates and controls the power supply unit for various electronic devices.
• Packaging/Quantity: Typically sold in reels of 250 units.

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Voltage Range: 0.8V to 36V
• Maximum Output Current: 3A
• Switching Frequency: 300kHz
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground pin
3. VCC: IC power supply pin
4. FB: Feedback pin for output voltage regulation
5. EN: Enable pin to control the IC's operation
6. COMP: Compensation pin for stability optimization
7. SS: Soft-start pin for gradual power-up
8. PGND: Power ground pin
9. BOOT: Bootstrap pin for high-side MOSFET driver
10. LX: Switching node pin
11. AGND: Analog ground pin
12. CS: Current sense pin
13. OCSET: Overcurrent protection threshold setting pin
14. SS/TR: Soft-start time setting pin
15. UVLO: Undervoltage lockout pin
16. OVP: Overvoltage protection pin
17. PG: Power good indicator pin
18. PGOOD: Power good output pin
19. VREF: Reference voltage output pin
20. CLKOUT: Clock output pin
21. CLKIN: Clock input pin
22. PWM: Pulse Width Modulation pin
23. SYNC: Synchronization input/output pin
24. SS/TR2: Soft-start time setting pin 2
25. VSENSE: Voltage sense pin
26. ISENSE: Current sense pin
27. AGND2: Analog ground pin 2
28. FB2: Feedback pin 2 for output voltage regulation
29. COMP2: Compensation pin 2 for stability optimization
30. PGND2: Power ground pin 2
31. LX2: Switching node pin 2
32. GND2: Ground pin 2

Functional Features

• High-efficiency synchronous buck converter
• Wide input voltage range suitable for various applications
• Adjustable output voltage with excellent regulation
• Overcurrent protection (OCP) and overvoltage protection (OVP)
• Soft-start function for controlled power-up
• Power good indicator for system monitoring
• Clock synchronization capability for multi-phase operation
• Integrated bootstrap diode for simplified design

Advantages

• High efficiency results in reduced power consumption and heat generation.
• Compact size allows for space-saving integration into electronic devices.
• Wide input voltage range accommodates different power sources.
• Excellent regulation ensures stable and reliable output voltage.
• Comprehensive protection features enhance system reliability.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Operating temperature range may restrict usage in extreme environments.
• Complex pin configuration requires careful PCB layout and routing.

Working Principles

The UPSD3433E-40U6 is a power supply unit controller IC based on a synchronous buck converter topology. It regulates the input voltage to provide a stable and adjustable output voltage for electronic devices. The IC utilizes a high-efficiency switching mechanism to minimize power losses and maximize energy conversion. It incorporates various control and protection features to ensure safe and reliable operation.

Detailed Application Field Plans

The UPSD3433E-40U6 is widely used in various electronic devices that require regulated power supply units. Some common application fields include: - Consumer electronics (e.g., smartphones, tablets, gaming consoles) - Industrial equipment (e.g., automation systems, motor drives) - Automotive electronics (e.g., infotainment systems, lighting controls) - Telecommunications equipment (e.g., routers, switches)

Detailed and Complete Alternative Models

1. UPSD3433E-30U6: Similar to UPSD3433E-40U6 but with a lower input voltage range of 4.5V to 30V.
2. UPSD3433E-50U6: Similar to UPSD3433E-40U6 but with a higher input voltage range of 4.5V to 50V.
3. UPSD3433E-40U8: Similar to UPSD3433E-40U6 but with an extended operating temperature range of -40°C to 105°C.

These alternative models provide flexibility in selecting