PMIC - Current Regulation/Management

Part Number	Description / PDF	Quantity
ADL5315ACPZ-R7 Analog Devices, Inc.	IC CURRENT MONITOR 8LFCSP	5307
LM334Z#PBF Analog Devices, Inc.	IC CURRENT SOURCE TO92-3	0
ADN8810ACP Analog Devices, Inc.	12-BIT CURRENT SOURCE	3155
MAX4915BEUK+T Analog Devices, Inc.	MAX4915 200MA, CURRENT-LIMIT SWI	12414
ADN8810ACPZ-REEL7 Analog Devices, Inc.	IC CURRENT SOURCE(12BIT) 24LFCSP	0
MAX4210CETT-T Analog Devices, Inc.	HIGH-SIDE POWER/CURRENT MONITOR	2500
MAX4995ALAVB+T Analog Devices, Inc.	MAX4995 50MILLIAMP TO 600MILLIAM	19399
AD8215YRZ-R7 Analog Devices, Inc.	AD8215 - HIGH VOLTAGE, CURRENT S	4308
MAX4210DETT Analog Devices, Inc.	HS POWER/CURRENT MONITOR	1694
AD8215WYRZ-RL Analog Devices, Inc.	AD8215 - HIGH VOLTAGE, CURRENT S	4110
MAX4794ETT+ Analog Devices, Inc.	ANALOG CIRCUIT, 1 FUNC, BICMOS	1706
AD8210WYRZ-RL Analog Devices, Inc.	IC CURRENT MONITOR 0.5% 8SOIC	0
AD8214WYRMZ-RL Analog Devices, Inc.	IC CURRENT SHUNT COMP OUT 8MSOP	0
MAX4915AELT+T Analog Devices, Inc.	MAX4915 200MA, CURRENT-LIMIT SWI	35000
LT3092ITS8#TRMPBF Analog Devices, Inc.	IC PROG CURRENT SOURCE TSOT23-8	5060
MAX1563ETC Analog Devices, Inc.	USB CURRENT-LIMITED SWITCHES	1757
MAX4211FEUE Analog Devices, Inc.	HIGH-SIDE POWER/CURRENT MONITOR	2361
MAX4211EETE Analog Devices, Inc.	HIGH-SIDE POWER/CURRENT MONITOR	14961
MAX4791EUK/V+T Analog Devices, Inc.	ANALOG CIRCUIT, 1 FUNC, BICMOS,	15000
AD8214ARMZ Analog Devices, Inc.	IC CURRENT SHUNT COMP OUT 8MSOP	540

PMIC - Current Regulation/Management

1. Overview

Power Management Integrated Circuits (PMICs) for current regulation and management are specialized semiconductor devices designed to control, monitor, and optimize electrical current flow in electronic systems. These ICs ensure stable power delivery, improve energy efficiency, and protect circuits from overcurrent, thermal, and voltage-related faults. With the rise of portable electronics, electric vehicles, and IoT devices, precise current management has become critical for system reliability and battery longevity.

2. Main Types and Functional Classification

Type	Functional Features	Application Examples
Linear Regulators (LDOs)	Low noise, simple design, dropout voltage constraints	Smartphones, RF modules
Switching Regulators	High efficiency, PWM control, higher complexity	Laptops, DC-DC converters
Battery Charge Management ICs	Support Li-ion/Polymer chemistries, thermal regulation	Electric vehicles, drones
Current Sense Amplifiers	Precise current monitoring, low-side/high-side detection	Industrial automation, power meters

3. Structure and Composition

Typical PMICs for current regulation integrate multiple components:

Voltage reference circuits for stable reference points
Error amplifiers for feedback control
Power MOSFETs or BJT switches for current regulation
Protection circuits (OCP, OVP, thermal shutdown)
Digital interfaces (I2C, PMBus) for programmability

Common packaging includes QFN, BGA, and TSSOP formats with thermal pads for heat dissipation.

4. Key Technical Parameters

Parameter	Description	Importance
Input Voltage Range	Operating voltage limits	Defines compatibility with power sources
Output Current Capability	Max sustained current delivery	Dictates load capacity
Efficiency (Typical)	Power conversion ratio	Affects thermal and battery life
Quiescent Current	Standby power consumption	Critical for low-power devices
Transient Response	Stability during load changes	Ensures reliable operation

5. Application Fields

Consumer Electronics: Smartphones, wearables, tablets
Automotive: Battery management systems, ADAS modules
Industrial: PLCs, robotics, test equipment
Telecommunications: Base stations, optical transceivers

6. Leading Manufacturers and Products

Manufacturer	Representative Product	Key Features
Texas Instruments	BQ25790	Single-cell battery charger with 30V OVP
STMicroelectronics	STBC08	Automotive current sensor with 5% accuracy
Infineon Technologies	XDPL210	Digital PFC+LLC controller for servers

7. Selection Guidelines

Determine input/output voltage/current requirements
Evaluate efficiency needs based on thermal constraints
Select appropriate protection features (OCP/OVP/OTP)
Consider package size and thermal performance
Assess digital control requirements (I2C/PMBus compatibility)

8. Industry Trends

Current PMIC development focuses on:

Higher integration (power + monitoring + communication)
Wide bandgap semiconductor adoption (GaN/SiC compatibility)
AI-driven dynamic voltage/current scaling
Automotive-grade reliability for EVs and ADAS systems
Sub-100 A quiescent current for always-on IoT devices