PMIC - Voltage Regulators - Special Purpose

Part Number	Description / PDF	Quantity
HIP6006CB Intersil (Renesas Electronics America)	SWITCHING CONTROLLER	735
ISL95855CHRTZ-T Intersil (Renesas Electronics America)	IC REG IMVP8 NOTEBK 3OUT 48TQFN	0
ISL6312AIRZ-T Intersil (Renesas Electronics America)	IC REG CTRLR VR10 1OUT 48QFN	0
ISL62882HRTZ Intersil (Renesas Electronics America)	IC REG CTRL IMVP-6.5 1OUT 40TQFN	0
ISL6444CA Intersil (Renesas Electronics America)	DUAL SWITCHING CONTROLLER	986
ISL68144IRAZ Intersil (Renesas Electronics America)	GP X+Y 4 PHASE DIGI CONTLR 40PIN	0
ISL95812IRZ Intersil (Renesas Electronics America)	IC REG CTRLR INTEL 1OUT 32QFN	0
ISL95820CRTZ-T Intersil (Renesas Electronics America)	IC REG CTRLR VR12.5 1OUT 40TQFN	0
ISL6566IRZ Intersil (Renesas Electronics America)	SWITCHING CONTROLLER	308
ISL62773HRZ-T Intersil (Renesas Electronics America)	IC REG CTRLR MULTIPH 2OUT 48QFN	0
ISL6334IRZ-T Intersil (Renesas Electronics America)	IC REG CTRLR VR11.1 1OUT 40QFN	0
ISL6524CBZ Intersil (Renesas Electronics America)	SWITCHING CONTROLLER	8561
ISL78210ARUZ-T7A Intersil (Renesas Electronics America)	IC REG AUTO APPL 1OUT 16UTQFN	0
HIP6012CBZ Intersil (Renesas Electronics America)	SWITCHING CONTROLLER, VOLTAGE-MO	0
ISL6561CR Intersil (Renesas Electronics America)	SWITCHING CONTROLLER	2362
ISL6422BERZ-T Intersil (Renesas Electronics America)	IC REG CONV SATELLIT 2OUT 40QFN	0
ISL95836HRTZ Intersil (Renesas Electronics America)	IC REG IMVP-7 VR12 2OUT 40TQFN	0
ISL6444CA-T Intersil (Renesas Electronics America)	DUAL SWITCHING CONTROLLER	2399
ISL6563IRZ Intersil (Renesas Electronics America)	TWO-PHASE BUCK PWM CONTROLLER	203
ISL95833BHRTZ Intersil (Renesas Electronics America)	IC REG IMVP-7 VR12 2OUT 32QFN	3225

PMIC - Voltage Regulators - Special Purpose

1. Overview

Special purpose voltage regulators are application-specific power management ICs designed to maintain precise voltage levels for specialized electronic systems. Unlike standard regulators, these devices address unique requirements such as dynamic voltage scaling, multi-rail sequencing, or high-precision reference generation. Their importance in modern technology stems from the need for optimized power delivery in advanced applications including AI accelerators, medical imaging equipment, and automotive sensor systems.

2. Major Types and Functional Classification

Type	Functional Characteristics	Application Examples
LCD Bias Regulators	Generates multiple precision voltages (VCOM, gamma) with high PSRR	Display panels, industrial HMIs
GDDR Power Solutions	Provides AVDD/VDDQ tracking with fast transient response	Graphics cards, AI accelerators
Gate Driver Supplies	Isolated voltage sources with tight tolerance for power MOSFETs	Motor controllers, solar inverters
DAC Reference Buffers	Ultra-low noise (<<1 V) with programmable output	Test equipment, precision sensors

3. Structure and Components

Typical architecture includes:

Advanced packaging (e.g., WLCSP, QFN) with dedicated power/ground pads
Internal compensation networks with frequency response optimization
Multi-stage regulation topology (e.g., LDO + charge pump)
Protection circuits (OVP, UVP, OTP) with fault reporting
Digital interface (I2C/PMBus) for configuration in programmable variants

4. Key Technical Specifications

Parameter	Importance
Output Voltage Accuracy	0.5% for precision applications, 2% for general use
Load Regulation	Must maintain <0.1% deviation across operating range
PSRR	80dB@1kHz critical for noise-sensitive analog circuits
Transient Response	Recovery time <50 s for dynamic loads
Quiescent Current	Optimizes efficiency in always-on systems

5. Application Fields

Primary industries:

Consumer Electronics: OLED displays, VR headsets
Industrial: PLC systems, precision instrumentation
Automotive: LiDAR sensors, ADAS power supplies
Medical: MRI gradient drivers, portable diagnostics

6. Leading Manufacturers and Products

Manufacturer	Key Products	Specialization
TI	TPS65130	Multi-output LCD bias supply
STMicro	LD6983	Automotive-grade gate driver supply
Analog Devices	ADP5090	Energy harvesting systems
Infineon	CYPD3171	USB-C power delivery controller

7. Selection Guidelines

Key considerations:

Match output configuration (single/multi-channel) to system requirements
Evaluate thermal performance under max load conditions
Assess compatibility with system-level power sequencing
Prioritize devices with integrated protection features

Case Study: Smartphone display subsystems typically select regulators with integrated gamma reference buffers and spread-spectrum control to minimize EMI.

8. Industry Trends

Current development directions:

Integration of digital calibration with 0.1mV resolution
Adoption of GaN/SiC compatible driver circuits
AI-enabled dynamic voltage scaling algorithms
Sub-100nm process technology for multi-rail PMICs
Enhanced safety features for ISO 26262 compliance