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ISSI IS32PM3420A | Demoboard IS32PM3420A DEMO BOARD
3.8V TO 36V, 3A, 400KHZ, SYNCHRONOUS STEP-DOWN VOLTAGE REGULATOR
Overview
| Topology | Other Topology |
| Input voltage | 3.8-36 V |
| Output 1 | 24 V |
| IC revision | 0A |
Description
The IS32PM3420A regulator is an automotive-focused high-performance synchronous step-down DC-DC converter that can drive a load current of up to 3A. It can operate within an input voltage range of 3.8V to 36V.The IS32PM3420A provides exceptional efficiency, output accuracy and drop-out voltage in a very small solution size. Constant on-time control mode is employed to achieve simple control-loop compensation and fast transient response. Force Continuous Conduction Mode (FCCM) at light loads significantly reduces the output voltage ripple. It requires few external components. Pin arrangement allows simple, optimum PCB layout. Protection features include thermal shutdown, VDD under-voltage lockout, cycle-by-cycle current limit, over-voltage, and output short-circuit protection.The IS32PM3420A device is available in the SOP-8-EP package with an exposed pad for enhanced thermal dissipation.
Features
- Input voltage range from 3.8V to 36V
- 1µA (Typ.) shutdown current
- Up to 3A output current capability
- Adjustable output voltage, 1V to 24V
- Output regulation accuracy:
- ±1% at 25°C
- ±2% over -40°C ~150°C
- 91% efficiency at full load (5V/3A)
- Integrated synchronous rectifier
- Fixed operating frequency: 400kHz
- Force Continuous Conduction Mode (FCCM)
- Spread spectrum to minimize EMI
- Few external components
- Internal loop compensation
- Internal soft-start
- Power good flag output
- Fault protections
- Cycle by cycle current limit
- Precision enable to program system UVLO
- Output short-circuit protection with hiccup mode
- Output over-voltage protection
- VDD under-voltage lockout
- Thermal shutdown protection
- Operating junction temperature range from -40°C ~ +150°C
- SOP-8-EP compact package
- RoHS & Halogen-Free Compliance
- TSCA Compliance
- AEC-Q100 Qualified with Temperature Grade 1: -40°C to 125°C
Typical applications
- Automotive LED lighting system, Automotive body electronics
- General-purpose power supply
More information
Products
Order Code | Datasheet | Downloads | Status | Product series | L(µH) | Tol. L | IRP,40K(A) | IR,40K(A) | ISAT,30%(A) | fres(MHz) | ISAT,10%(A) | Mount | RDC typ.(mΩ) | Material | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-XHMA SMD Power Inductor, 4.7 µH, ±20% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-XHMA SMD Power Inductor | Inductance4.7 µH | Inductance±20% | Performance Rated Current5.8 A | Rated Current4.7 A | Saturation Current @ 30%10.5 A | Self Resonant Frequency28 MHz | Saturation Current @ 10%3.7 A | MountSMT | DC Resistance31 mΩ | MaterialHyperflux | |||
| WE-XHMA SMD Power Inductor, 6.8 µH, ±20% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-XHMA SMD Power Inductor | Inductance6.8 µH | Inductance±20% | Performance Rated Current8.1 A | Rated Current6.5 A | Saturation Current @ 30%11.3 A | Self Resonant Frequency22 MHz | Saturation Current @ 10%5.65 A | MountSMT | DC Resistance17.6 mΩ | MaterialHyperflux |