PMIC - Voltage Regulators - Special Purpose

Part Number	Description / PDF	Quantity
NCP81111MNI0TXG Sanyo Semiconductor/ON Semiconductor	IC REG CTRLR INTEL 1OUT 32QFN	0
NCV51199PDR2G Sanyo Semiconductor/ON Semiconductor	IC REG LDO DDR 1OUT 8SOIC	0
NCP81111MNDFTXG Sanyo Semiconductor/ON Semiconductor	IC REG CTRLR INTEL 1OUT 32QFN	2500
NCP4328ASNT1G Sanyo Semiconductor/ON Semiconductor	IC REG SECONDARY CTRL 1OUT 5TSOP	12997
NCP4200MNR2G Sanyo Semiconductor/ON Semiconductor	IC REG CONV PENTIUM 1OUT 40QFN	583
NCV97200MW01R2G Sanyo Semiconductor/ON Semiconductor	IC PMIC SWITCHER 20QFNW	0
NCP6131S52MNR2G Sanyo Semiconductor/ON Semiconductor	IC REG IMVP-7 VR12 2OUT 52QFN	1352
NCP81245MNTXG Sanyo Semiconductor/ON Semiconductor	IC REG CTRLR IMVP8 7OUT 52QFN	0
NCV51510MNTAG Sanyo Semiconductor/ON Semiconductor	IC REG LDO DDR 1OUT 10DFN	3000
ADP3211AMNR2G Sanyo Semiconductor/ON Semiconductor	IC REG CTRLR POWER 1OUT 32QFN	8840
NCP81111MNTXG Sanyo Semiconductor/ON Semiconductor	IC REG CTRLR INTEL 1OUT 32QFN	2195
NCP51145MNTAG Sanyo Semiconductor/ON Semiconductor	IC REG LDO DDR 1OUT 8DFN	3613
LV5685PV-XH Sanyo Semiconductor/ON Semiconductor	IC REG AUTO APPL 6OUT 15HZIP	1413
NCV51400MNTXG Sanyo Semiconductor/ON Semiconductor	IC REG LDO DDR 1OUT 10DFN	0
NCP51403MNTXG Sanyo Semiconductor/ON Semiconductor	IC REG LDO DDR 1OUT 10DFN	2808
NCP81278MNTXG Sanyo Semiconductor/ON Semiconductor	IC REG CTRLR CPU GPU 1OUT 20QFN	2865
NCV6357MTWDTXG Sanyo Semiconductor/ON Semiconductor	BUCK DCDC- VOUT=1.25V	29923000
NCP81248MNTXG Sanyo Semiconductor/ON Semiconductor	IC CONTROLLER MULTIPHASE 48QFN	0
NCV6357MTWATXG Sanyo Semiconductor/ON Semiconductor	BUCK VOUT=1.1V/1.8V DP	0
LV5683P-E Sanyo Semiconductor/ON Semiconductor	IC REG CONV CAR AUD 4OUT 15HZIP	195

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