Renesas Electronics Corporation 2.5A Regulator with Integrated High-Side MOSFET for Synchronous Buck or Boost Buck Converter ISL85403FRZ-T

Description
The ISL85403 is a 40V, 2.5A synchronous buck or boost buck controller with a high-side MOSFET and low-side driver integrated. In buck mode, the ISL85403 supports a wide input range of 3V to 40V. In boost-buck mode, the input range can be extended down to 2.5V and output regulation can be maintained when VIN drops below VOUT, enabling sensitive electronics to remain on in low input voltage conditions. The ISL85403 has a flexible selection of operation modes of forced PWM mode and PFM mode. In PFM mode, the quiescent input current is as low as 180µA (AUXVCC connected to VOUT). The load boundary between PFM and PWM can be programmed to cover wide applications. The low-side driver can be either used to drive an external low-side MOSFET for a synchronous buck or left unused for a standard non-synchronous buck. The low-side driver can also be used to drive a boost converter as a preregulator followed by a buck controlled by the same IC, which greatly expands the operating input voltage range down to 2.5V or lower (Refer to “Typical Application Schematic III - Boost Buck Converter” on page 6). The ISL85403 offers the most robust current protections. It uses peak current mode control with cycle-by-cycle current limiting. It is implemented with frequency foldback under current limit condition; also, the hiccup overcurrent mode is also implemented to guarantee reliable operations under harsh short conditions. The ISL85403 has comprehensive protections against various faults including overvoltage and over-temperature protections, etc.
  • 2.5A Regulator with Integrated High-Side MOSFET for Synchronous Buck or Boost Buck Converter - ISL85403FRZ-T - Renesas Electronics Corporation
    Renesas Electronics Corporation
  • PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - ISL85403FRZ-T - 805842-ISL85403FRZ-T - Win Source Electronics
    Win Source Electronics
  • Voltage Regulators - DC DC Switching Regulators - ISL85403FRZ-T - ODG (Origin Data Global)
    ODG (Origin Data Global)
  • Voltage Regulators - DC DC Switching Regulators - ISL85403FRZ-T-ND - DigiKey
    DigiKey
  • Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators - ISL85403FRZ-T - Shenzhen Shengyu Electronics Technology Limited
    Shenzhen Shengyu Electronics Technology Limited
  • Voltage Regulators - DC DC Switching Regulators - ISL85403FRZ-T - Quarktwin Technology Ltd.
    Quarktwin Technology Ltd.
  • PMIC - Voltage Regulators - DC DC Switching Regulators - ISL85403FRZ-T - Lingto Electronic Limited
    Lingto Electronic Limited
Request a Quote Datasheet
Description
The ISL85403 is a 40V, 2.5A synchronous buck or boost buck controller with a high-side MOSFET and low-side driver integrated. In buck mode, the ISL85403 supports a wide input range of 3V to 40V. In boost-buck mode, the input range can be extended down to 2.5V and output regulation can be maintained when VIN drops below VOUT, enabling sensitive electronics to remain on in low input voltage conditions. The ISL85403 has a flexible selection of operation modes of forced PWM mode and PFM mode. In PFM mode, the quiescent input current is as low as 180µA (AUXVCC connected to VOUT). The load boundary between PFM and PWM can be programmed to cover wide applications. The low-side driver can be either used to drive an external low-side MOSFET for a synchronous buck or left unused for a standard non-synchronous buck. The low-side driver can also be used to drive a boost converter as a preregulator followed by a buck controlled by the same IC, which greatly expands the operating input voltage range down to 2.5V or lower (Refer to “Typical Application Schematic III - Boost Buck Converter” on page 6). The ISL85403 offers the most robust current protections. It uses peak current mode control with cycle-by-cycle current limiting. It is implemented with frequency foldback under current limit condition; also, the hiccup overcurrent mode is also implemented to guarantee reliable operations under harsh short conditions. The ISL85403 has comprehensive protections against various faults including overvoltage and over-temperature protections, etc.
Request a Quote Datasheet

Suppliers

Company
Product
Description
Supplier Links
2.5A Regulator with Integrated High-Side MOSFET for Synchronous Buck or Boost Buck Converter - ISL85403FRZ-T - Renesas Electronics Corporation
Renesas Electronics Corporation
Milpitas, CA, USA
2.5A Regulator with Integrated High-Side MOSFET for Synchronous Buck or Boost Buck Converter
ISL85403FRZ-T
2.5A Regulator with Integrated High-Side MOSFET for Synchronous Buck or Boost Buck Converter ISL85403FRZ-T
The ISL85403 is a 40V, 2.5A synchronous buck or boost buck controller with a high-side MOSFET and low-side driver integrated. In buck mode, the ISL85403 supports a wide input range of 3V to 40V. In boost-buck mode, the input range can be extended down to 2.5V and output regulation can be maintained when VIN drops below VOUT, enabling sensitive electronics to remain on in low input voltage conditions. The ISL85403 has a flexible selection of operation modes of forced PWM mode and PFM mode. In PFM mode, the quiescent input current is as low as 180µA (AUXVCC connected to VOUT). The load boundary between PFM and PWM can be programmed to cover wide applications. The low-side driver can be either used to drive an external low-side MOSFET for a synchronous buck or left unused for a standard non-synchronous buck. The low-side driver can also be used to drive a boost converter as a preregulator followed by a buck controlled by the same IC, which greatly expands the operating input voltage range down to 2.5V or lower (Refer to “Typical Application Schematic III - Boost Buck Converter” on page 6). The ISL85403 offers the most robust current protections. It uses peak current mode control with cycle-by-cycle current limiting. It is implemented with frequency foldback under current limit condition; also, the hiccup overcurrent mode is also implemented to guarantee reliable operations under harsh short conditions. The ISL85403 has comprehensive protections against various faults including overvoltage and over-temperature protections, etc.

The ISL85403 is a 40V, 2.5A synchronous buck or boost buck controller with a high-side MOSFET and low-side driver integrated. In buck mode, the ISL85403 supports a wide input range of 3V to 40V. In boost-buck mode, the input range can be extended down to 2.5V and output regulation can be maintained when VIN drops below VOUT, enabling sensitive electronics to remain on in low input voltage conditions.
The ISL85403 has a flexible selection of operation modes of forced PWM mode and PFM mode. In PFM mode, the quiescent input current is as low as 180µA (AUXVCC connected to VOUT). The load boundary between PFM and PWM can be programmed to cover wide applications.
The low-side driver can be either used to drive an external low-side MOSFET for a synchronous buck or left unused for a standard non-synchronous buck. The low-side driver can also be used to drive a boost converter as a preregulator followed by a buck controlled by the same IC, which greatly expands the operating input voltage range down to 2.5V or lower (Refer to “Typical Application Schematic III - Boost Buck Converter” on page 6).
The ISL85403 offers the most robust current protections. It uses peak current mode control with cycle-by-cycle current limiting. It is implemented with frequency foldback under current limit condition; also, the hiccup overcurrent mode is also implemented to guarantee reliable operations under harsh short conditions. The ISL85403 has comprehensive protections against various faults including overvoltage and over-temperature protections, etc.

Supplier's Site Datasheet
PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - ISL85403FRZ-T - 805842-ISL85403FRZ-T - Win Source Electronics
Win Source Electronics
Laguna Hills, CA, United States
PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - ISL85403FRZ-T
805842-ISL85403FRZ-T
PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - ISL85403FRZ-T 805842-ISL85403FRZ-T
Manufacturer: Renesas Electronics America Inc. Win Source Part Number: 805842-ISL85403FRZ-T Packaging: Reel Mounting Style: SMD Current - Output: 2.5A Output Type: Adjustable Function: Step-Up, Step-Down, Step-Up/Step-Down Topology: Buck, Boost, Buck-Boost Frequency - Switching: 200kHz ~ 2.2MHz Number of Outputs: 1 Output Configuration: Positive Voltage - Input (Min): 3V Voltage - Output (Min/Fixed): 0.5V Synchronous Rectifier: Both Supplier Device Package: 20-QFN (4x4) Temperature Range - Operating: -40°C ~ 105°C Maximum Input Voltage: 40V Maximum Output Voltage: 36V Manufacturer Package: 20-VFQFN Exposed Pad Popularity: Medium Fake Threat In the Open Market: 74 pct. Supply and Demand Status: Balance Manufacturer Pack Quantity: 6,000 MSL Level: 1 (Unlimited) Part Number Series: ISL85403

Manufacturer: Renesas Electronics America Inc.
Win Source Part Number: 805842-ISL85403FRZ-T
Packaging: Reel
Mounting Style: SMD
Current - Output: 2.5A
Output Type: Adjustable
Function: Step-Up, Step-Down, Step-Up/Step-Down
Topology: Buck, Boost, Buck-Boost
Frequency - Switching: 200kHz ~ 2.2MHz
Number of Outputs: 1
Output Configuration: Positive
Voltage - Input (Min): 3V
Voltage - Output (Min/Fixed): 0.5V
Synchronous Rectifier: Both
Supplier Device Package: 20-QFN (4x4)
Temperature Range - Operating: -40°C ~ 105°C
Maximum Input Voltage: 40V
Maximum Output Voltage: 36V
Manufacturer Package: 20-VFQFN Exposed Pad
Popularity: Medium
Fake Threat In the Open Market: 74 pct.
Supply and Demand Status: Balance
Manufacturer Pack Quantity: 6,000
MSL Level: 1 (Unlimited)
Part Number Series: ISL85403

Buy Now
Voltage Regulators - DC DC Switching Regulators - ISL85403FRZ-T - ODG (Origin Data Global)
ODG (Origin Data Global)
Shenzhen, China
Voltage Regulators - DC DC Switching Regulators
ISL85403FRZ-T
Voltage Regulators - DC DC Switching Regulators ISL85403FRZ-T
IC REG MULT CONFG ADJ 2.5A 20QFN

IC REG MULT CONFG ADJ 2.5A 20QFN

Supplier's Site Datasheet
Voltage Regulators - DC DC Switching Regulators - ISL85403FRZ-T-ND - DigiKey
DigiKey
Thief River Falls, MN, United States
Voltage Regulators - DC DC Switching Regulators
ISL85403FRZ-T-ND
Voltage Regulators - DC DC Switching Regulators ISL85403FRZ-T-ND
Buck, Boost, Buck-Boost Switching Regulator IC Positive Adjustable 0.5V 1 Output 2.5A 20-VFQFN Exposed Pad

Buck, Boost, Buck-Boost Switching Regulator IC Positive Adjustable 0.5V 1 Output 2.5A 20-VFQFN Exposed Pad

Buy Now Datasheet
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators - ISL85403FRZ-T - Shenzhen Shengyu Electronics Technology Limited
Shenzhen Shengyu Electronics Technology Limited
Futian, China
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators
ISL85403FRZ-T
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators ISL85403FRZ-T
IC REG MULT CONFG ADJ 2.5A 20QFN

IC REG MULT CONFG ADJ 2.5A 20QFN

Supplier's Site
Voltage Regulators - DC DC Switching Regulators - ISL85403FRZ-T - Quarktwin Technology Ltd.
Quarktwin Technology Ltd.
Shenzhen, Guangdong, China
Voltage Regulators - DC DC Switching Regulators
ISL85403FRZ-T
Voltage Regulators - DC DC Switching Regulators ISL85403FRZ-T
Buck, Boost, Buck-Boost Switching Regulator IC Positive Adjustable 0.5V 1 Output 2.5A 20-VFQFN Exposed Pad

Buck, Boost, Buck-Boost Switching Regulator IC Positive Adjustable 0.5V 1 Output 2.5A 20-VFQFN Exposed Pad

Buy Now Datasheet
PMIC - Voltage Regulators - DC DC Switching Regulators - ISL85403FRZ-T - Lingto Electronic Limited
Lingto Electronic Limited
Shenzhen, China
PMIC - Voltage Regulators - DC DC Switching Regulators
ISL85403FRZ-T
PMIC - Voltage Regulators - DC DC Switching Regulators ISL85403FRZ-T
IC REG MULT CONFG ADJ 2.5A 20QFN

IC REG MULT CONFG ADJ 2.5A 20QFN

Supplier's Site Datasheet
VAST STOCK CO., LIMITED
Sheung Wan, Hong Kong
Switching Voltage Regulators
ISL85403FRZ-T
Switching Voltage Regulators ISL85403FRZ-T
Switching Voltage Regulators Reg w/FET for Sync Boost/Buck Converter

Switching Voltage Regulators Reg w/FET for Sync Boost/Buck Converter

Buy Now Datasheet

Technical Specifications

  Renesas Electronics Corporation Win Source Electronics ODG (Origin Data Global) DigiKey Shenzhen Shengyu Electronics Technology Limited Quarktwin Technology Ltd. Lingto Electronic Limited VAST STOCK CO., LIMITED
Product Category IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators
Product Number ISL85403FRZ-T 805842-ISL85403FRZ-T ISL85403FRZ-T ISL85403FRZ-T-ND ISL85403FRZ-T ISL85403FRZ-T ISL85403FRZ-T ISL85403FRZ-T
Product Name 2.5A Regulator with Integrated High-Side MOSFET for Synchronous Buck or Boost Buck Converter PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - ISL85403FRZ-T Voltage Regulators - DC DC Switching Regulators Voltage Regulators - DC DC Switching Regulators Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators Voltage Regulators - DC DC Switching Regulators PMIC - Voltage Regulators - DC DC Switching Regulators Switching Voltage Regulators
Configuration / Function Buck; Boost Buck, Boost, Buck-Boost Buck; Boost Buck; Boost; Buck-Boost
Package Type Other; QFN Other; 20-VFQFN Exposed Pad Other; 20-VFQFN Exposed Pad Other; 20-VFQFN Exposed Pad Other; 20-VFQFN Exposed Pad
Special Features Synchronous Rectification Multiple Outputs; Synchronous Rectification Synchronous Rectification
Output Voltage 0.8000 to 36 volts 36 volts 0.5000 volts 0.5000 to 36 volts 1 volts 0.5000 to 36 volts
IOUT 2.5 amps 2.5 amps 2.5 amps 2.5 amps 2.5 amps
Unlock Full Specs
to access all available technical data