ISL6256AHRZ

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High efficiency - Low dropout voltage - Wide input voltage range - Adjustable output voltage - Overcurrent protection - Thermal shutdown protection

Package: QFN (Quad Flat No-leads)

Essence: The ISL6256AHRZ is a voltage regulator IC designed for use in various electronic devices to provide stable and regulated power supply.

Packaging/Quantity: The ISL6256AHRZ is typically sold in reels containing 2500 units per reel.

Specifications

• Input Voltage Range: 4.5V to 28V
• Output Voltage Range: 0.8V to 5.5V
• Maximum Output Current: 3A
• Dropout Voltage: 200mV at 1A
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ISL6256AHRZ has a total of 20 pins, which are assigned specific functions as follows:

1. VIN: Input voltage pin
2. GND: Ground pin
3. EN: Enable pin
4. FB: Feedback pin
5. VSENSE: Current sense pin
6. COMP: Compensation pin
7. SS: Soft-start pin
8. PG: Power good pin
9. BST: Boost pin
10. SW: Switching node pin
11. AGND: Analog ground pin
12. VCC: Supply voltage pin
13. LDOIN: LDO input pin
14. LDOOUT: LDO output pin
15. LDOGND: LDO ground pin
16. LDOEN: LDO enable pin
17. LDOFB: LDO feedback pin
18. LDOVCC: LDO supply voltage pin
19. LDOBST: LDO boost pin
20. LDOSS: LDO soft-start pin

Functional Features

• High efficiency conversion of input voltage to regulated output voltage.
• Overcurrent protection prevents damage to the IC and connected devices in case of excessive current flow.
• Thermal shutdown protection shuts down the IC when the temperature exceeds a safe limit, preventing overheating.
• Adjustable output voltage allows customization according to specific requirements.
• Wide input voltage range enables compatibility with various power sources.

Advantages and Disadvantages

Advantages: - High efficiency results in minimal power loss. - Wide input voltage range provides flexibility in power source selection. - Overcurrent and thermal shutdown protection enhance safety and reliability. - Adjustable output voltage allows for versatile applications.

Disadvantages: - Limited maximum output current may not be suitable for high-power applications. - Dropout voltage may cause a slight decrease in output voltage under heavy load conditions.

Working Principles

The ISL6256AHRZ operates as a step-down voltage regulator using pulse-width modulation (PWM) control. It takes an input voltage from the VIN pin and converts it to a lower, regulated output voltage at the SW pin. The feedback mechanism adjusts the duty cycle of the PWM signal to maintain the desired output voltage. The IC also incorporates various protection features to ensure safe operation.

Detailed Application Field Plans

The ISL6256AHRZ is commonly used in the following applications:

1. Laptop computers
2. Tablets
3. Mobile phones
4. Portable gaming devices
5. Industrial equipment
6. Automotive electronics

Detailed and Complete Alternative Models

1. TPS54332: Texas Instruments
2. LT1763: Analog Devices
3. LM2576: National Semiconductor
4. MAX15062: Maxim Integrated
5. AP6503: Diodes Incorporated

These alternative models offer similar functionality and can be used as replacements for the ISL6256AHRZ in various applications.

Word count: 487 words