PMIC - Power Distribution Switches, Load Drivers

Part Number	Description / PDF	Quantity
BD82061FVJ-LBE2 ROHM Semiconductor	IC HIGH SIDE SWITCH 1CH 8-TSSOP	3230
BD6512F-E2 ROHM Semiconductor	IC PWR SWITCH N-CHANNEL 1:2 8SOP	25
BD82000FVJ-LBE2 ROHM Semiconductor	IC PWR SWITCH N-CHAN 1:1 8TSSOP	2390
BD82005FVJ-MGE2 ROHM Semiconductor	IC PWR SWITCH N-CHAN 1:1 8TSSOP	2500
BD2227G-TR ROHM Semiconductor	IC SWITCH USB HI SIDE 1CH 5SSOP	2358
BD2206G-TR ROHM Semiconductor	IC LOAD SWITCH 0.5A SSOP5	2188
BD6520F-E2 ROHM Semiconductor	IC PWR SWITCH N-CHANNEL 1:1 8SOP	194
BM2LC105FJ-CE2 ROHM Semiconductor	IC PWR SWITCH N-CHAN 1:1 SOP-J8	2113
BD2262G-MGTR ROHM Semiconductor	IC PWR SWITCH N-CHAN 1:1 5SSOP	1156
BD2051AFJ-E2 ROHM Semiconductor	IC PWR SWITCH N-CHAN 1:1 SOP-J8	1166
BDS2EJAAGUL-E2 ROHM Semiconductor	IC PWR SWITCH N-CH 1:1 8VCSP50L1	2913
BD2046AFJ-E2 ROHM Semiconductor	IC PWR SWITCH N-CHAN 1:2 SOP-J8	0
BD6513F-E2 ROHM Semiconductor	IC SWITCH HIGH SIDE 2CH SOP-8	2330
BD2201GUL-E2 ROHM Semiconductor	IC PWR SWITCH N-CHAN 1:1 50VCSP	558
BD82029FVJ-GE2 ROHM Semiconductor	IC PWR SWITCH N-CHAN 1:1 8TSSOP	1775
BD82031FVJ-GE2 ROHM Semiconductor	IC PWR SWITCH N-CHAN 1:1 8TSSOP	1532
BV1HD090FJ-CE2 ROHM Semiconductor	IC PWR SWITCH N-CHAN 1:1 SOP-J8	182
BD1LB500EFJ-CE2 ROHM Semiconductor	IC PWR SWITCH P-CHAN 1:1 8HTSOP	2475
BD2220G-TR ROHM Semiconductor	IC PWR SWITCH N-CHAN 1:1 5SSOP	2785
BV2HD045EFU-CE2 ROHM Semiconductor	AUTOMOTIVE 2CH 45 M HIGH-SIDE SW	94

PMIC - Power Distribution Switches, Load Drivers

1. Overview

Power Management Integrated Circuits (PMICs) featuring Power Distribution Switches and Load Drivers are critical components in modern electronic systems. These devices manage power routing, load control, and protection functions in applications ranging from portable devices to industrial equipment. Power Distribution Switches handle voltage/current path selection, while Load Drivers provide controlled driving capability for high-current loads. Their integration improves system efficiency, reduces component count, and enhances reliability.

2. Main Types & Functional Classification

Type	Functional Characteristics	Application Examples
Load Switches	Low R_DS(on), fast turn-on/off, inrush current control	Smartphones, laptops, servers
Distribution Switches	Multi-channel power path management, fault isolation	Automotive systems, industrial PLCs
Smart Load Drivers	Integrated FETs + protection logic, current sensing	Robotics, motor controls, LED lighting
Hot Swap Controllers	Controlled startup, overcurrent/voltage protection	Data center servers, telecom equipment

3. Structure & Composition

Typical components include:

Power MOSFETs (usually NMOS/PMOS) with low on-resistance
Gate drivers and control logic circuits
Protection modules (OCP, OVP, OTP, UVLO)
Current sensing elements (shunt resistors or amplifiers)
Thermal management structures (heat spreaders, thermal vias)

Common packaging: QFN, TSSOP, BGA with exposed thermal pads

4. Key Technical Specifications

Parameter	Description	Importance
R_DS(on)	On-state resistance (1-50 m range)	Directly affects conduction loss
I_MAX	Maximum continuous current (0.5-10A typical)	Determines load capacity
V_SUPPLY	Operating voltage range (2.7-40V typical)	System compatibility factor
t_ON/OFF	Switching transition time (1-100 s)	Affects EMI and power efficiency
Quiescent Current	Standby power consumption ( A range)	Battery life consideration

5. Application Fields

Consumer Electronics: Smartphones (display/backlight drivers), notebooks (peripheral power control)
Automotive: Electric vehicle power distribution, ADAS sensor power management
Industrial: PLCs, motor drives, test equipment
Telecom/Datacom: Server power rails, PoE systems, base stations
Medical: Portable diagnostic devices, imaging equipment

6. Leading Manufacturers & Products

Manufacturer	Product Series	Key Features
Texas Instruments	TPS229xx family	18m R_DS(on), 6A rating, load current monitoring
STMicroelectronics	VN7000 series	Smart high-side switches, automotive qualified
Infineon	BTS7xx series	Integrated diagnostics, 24V operation
ON Semiconductor	NCP380 series	40V tolerant, fast overcurrent protection

7. Selection Recommendations

Key consideration factors:

Current/voltage requirements with safety margins (>20% over spec)
Thermal performance: Junction-to-ambient thermal resistance
Protection features matching application environment
Control interface compatibility (GPIO, I2C, PWM)
Package size vs. board space constraints

Case Study: For a 12V/3A motor driver in an industrial robot, select a device with:

R_DS(on) < 30m to limit loss to <0.27W
Operating temperature range -40 C to 125 C
Integrated current sensing for feedback control

8. Industry Trends

Integration of GaN/SiC FETs for higher efficiency (2024-2030)
Development of bidirectional switches for energy recovery systems
Increasing adoption of digital control interfaces (PMBus compliance)
Tighter functional safety compliance (ISO 26262 for automotive)
Advanced thermal packaging (double-sided cooling, copper pillar technology)