PowerPath, Ideal Diodes & Load Switches

Analog Devices’ PowerPath and ideal diode controllers protect power supplies by minimizing reverse currents back into the supply and shoot-through currents between supplies. Selection of the power source can be either by the highest voltage or highest priority.

For highest voltage selections, ideal diodes are employed in a diode-OR configuration. Applications include redundant supply ORing, supply holdup during input brownout, and reverse battery protection. For selection by highest priority, a prioritized PowerPath controller provides the most general-purpose and flexible solution. A prioritizer powers the system from the highest priority input that is within its valid voltage window. Applications occur in battery-equipped portable products, memory modules with capacitive holdup, and server subsystems with main and auxiliary supplies.
Product Selection Table

PowerPath, Ideal Diodes & Load Switches

  Hold Shift Key for secondary sorting
SortOrderPart## of ChannelsVin
(min)
(V)
Vin
(max)
(V)
Typical Current Capability
(typ)
(A)
Ideal DiodeTotal Quiescent Current
(typ)
(A)
CommentsUS Price 1000 to 4999
($ US)
1LTC4418 2 2.5 40 5 Dual, External, P-Channel 26µ Dual Channel Prioritized PowerPath Controller $2.45 (LTC4418CUF#PBF)
2LT8672 1 3 42 20 External, N-Channel, Single 20µ Active Rectifier Controller with Reverse Protection $1.95 (LT8672EMS#PBF)
3LTC4420 2 1.8 18 500m Dual, Internal, P-Channel 3.6µ 18V Dual Input Micropower PowerPath Prioritizer with Backup Supply Monitoring $2.95 (LTC4420CMSE#PBF)
4LTC4419 2 1.8 18 500m Dual, Internal, P-Channel 3.6µ 18V Dual Input Micropower PowerPath Prioritizer $2.75 (LTC4419CMSE#PBF)
5LTC3126 2 2.4 42 2.5 Dual, Internal, N-Channel 5.5µ 42V, 2.5A Synchronous Step-Down Regulator with No-Loss Input PowerPath $6.25 (LTC3126EUFD#PBF)
6LTC4371 2 -500 -4.5 20 Dual, External, N-Channel 300µ Dual Negative Voltage Ideal Diode-OR Controller and Monitor $2.50 (LTC4371CDD#PBF)
7LTC4236 2 2.9 18 20 Dual, External, N-Channel 3.58m Dual Ideal Diode-OR and Single Hot Swap Controller with Current Monitor $4.25 (LTC4236CUFD-1#PBF)
8LTC3118 1 2.2 18 2 Dual, Internal, N-Channel 50µ 18V, 2A Buck-Boost DC/DC Converter with Low-Loss Dual Input PowerPath $5.75 (LTC3118EUFD#PBF)
9LTC4235 2 9 14 20 Dual, External, N-Channel 3.64m Dual 12V Ideal Diode-OR and Single Hot Swap Controller with Current Monitor $3.95 (LTC4235CUFD-2#PBF)
10ADP1290 1 2.3 13.2 2 Load Switch-- $0.88 (ADP1290ACBZ-R7)
11LTC4229 1 2.9 18 20 External, N-Channel, Single 2.53m Ideal Diode and Hot Swap Controller $2.95 (LTC4229CUFD#PBF)
12LT4321 2 20 80 20 Dual Bridges with External N-Channel 500µ PoE Ideal Diode Bridge Controller $2.95 (LT4321IUF#PBF)
13ADP1190A 4 1.4 3.6- Load Switch-- $0.60 (ADP1190AACBZ-R7)
14LT4320-1 1 9 72 20 Single Bridge with External N-Channel 1.3m Ideal Diode Bridge Controller - DC to 600Hz $3.25 (LT4320IMSE-1#PBF)
15LT4320 1 9 72 20 Single Bridge with External N-Channel 1.3m Ideal Diode Bridge Controller - DC to 60Hz $2.95 (LT4320IMSE#PBF)
16ADP1196 1 0 5.5 3 Load Switch-- $0.50 (ADP1196ACBZ-02-R7)
17LTC4417 3 2.5 36 5 External, P-Channel, Triple 28µ Prioritized PowerPath Controller with -42V Reverse Input Protection $3.05 (LTC4417CUF#PBF)
18ADP196Reference Circuit Available 1- 5 3 Load Switch-- $0.50 (ADP196ACBZ-01-R7)
19ADP1190 4 1.4 3.6- Load Switch-- $0.60 (ADP1190ACBZ-R7)
20LTC4228 2 2.9 18 20 Dual, External, N-Channel 2.95m Dual ideal diode and hot swap controller, -1 Latchoff, -2 Auto-Retry $3.59 (LTC4228CUFD-2#PBF)
21LTC4370 2 0 18 20 Dual, External, N-Channel 2.25m Two-Supply Diode-OR Current Balancing Controller $4.95 (LTC4370CMS#PBF)
22LTC4364 1 4 80 20 External, N-Channel, Single 483µ Ride-through protection with ideal diode, Adjustable output-clamp and circuit-breaker with timer, Sh $3.45 (LTC4364CDE-2#PBF)
23LTC4359 1 4 80 20 External, N-Channel, Single 150µ Ideal Diode Controller with -40V Reverse Input Protection $2.10 (LTC4359CDCB#TRPBF)
24LTC4353 2 0 18 20 Dual, External, N-Channel 1.6m Dual Low Voltage Ideal Diode Controller $3.45 (LTC4353CMS#PBF)
25ADP199-- 3.6 500m Load Switch-- $0.32 (ADP199ACBZ-R7)
26LTC4415 2 1.7 5.5 4 Dual, Internal, P-Channel 44µ Dual 4A Ideal Diodes with Adjustable Current Limit, Imon Outputs, Overcurrent Warning, Thermal Warni $2.95 (LTC4415EMSE#PBF)
27LTC3226 1 2.5 5.5 315m External, P-Channel, Single 55µ 2-Cell Supercapacitor Charger with Backup PowerPath Controller $2.67 (LTC3226EUD#PBF)
28ADP198 1-- 1 Load Switch-- $0.35 (ADP198ACBZ-11-R7)
29ADP194 1 1.1 3.6 500m Load Switch-- $0.32 (ADP194ACBZ-R7)
30LTC4227 2 2.9 18 20 Dual, External, N-Channel 3.3m Dual ideal diode-OR and single hot swap controller, Options for latchoff/auto-Retry and 100ms/1.6ms $3.41 (LTC4227CGN-1#PBF)
31ADP197 1- 5 3 Load Switch-- $0.46 (ADP197ACBZ-R7)
32ADP195Reference Circuit Available 1-- 1.1 Load Switch-- $0.35 (ADP195ACBZ-R7)
33ADP191 1-- 500m Load Switch-- $0.32 (ADP191ACBZ-R7)
34ADP190Reference Circuit Available 1 1.2 3.6- Load Switch-- $0.33 (ADP190ACBZ-R7)
35LTC4358 1 9 26.5 5 Internal, N-Channel, Single 780µ 5A Ideal Diode $2.10 (LTC4358CDE#PBF)
36LTC4352 1 0 18 20 External, N-Channel, Single 1.47m Low Voltage Ideal Diode Controller with Monitoring $2.50 (LTC4352CDD#PBF)
37LTC4357 1 9 80 20 External, N-Channel, Single 930µ Positive High Voltage Ideal Diode Controller $1.70 (LTC4357CDCB#TRPBF)
38LTC4355 2 9 80 20 Dual, External, N-Channel 2.6m Positive High Voltage Dual Ideal Diode-OR with Input Supply and Fuse Monitors $2.50 (LTC4355CS#PBF)
39LTC4416 2 3.6 36 20 Dual, External, P-Channel 70µ 36V, Low Loss Dual PowerPath Controllers for Large PFETs $2.45 (LTC4416EMS#PBF)
40LTC4413-2 2 2.6 5.5 2.6 Dual, Internal, P-Channel 40µ Dual 2.6A, 2.5V to 5.5V Fast Ideal Diodes in a 3mm x 3mm DFN, Overvoltage Protection Sensor with Dri $2.25 (LTC4413EDD-2#PBF)
41LTC4413-1 2 2.6 5.5 2.6 Dual, Internal, P-Channel 40µ Dual 2.6A, 2.5V to 5.5V Fast Ideal Diodes in a 3mm x 3mm DFN $2.15 (LTC4413EDD-1#PBF)
42LTC2952 2 2.7 28 5 Dual, External, P-Channel 65µ Push Button PowerPath Controller with Supervisor $2.95 (LTC2952CF#PBF)
43LTC4414 1 3 36 20 External, P-Channel, Single 36µ 36V, Low Loss PowerPath Controller for Large PFETs $1.85 (LTC4414EMS8#PBF)
44LTC4413 2 2.5 5.5 2.6 Dual, Internal, P-Channel 25µ Dual 2.6A, 2.5V to 5.5V, Ideal Diodes in 3mm × 3mm DFN $2.15 (LTC4413EDD#PBF)
45LTC4354 2 -80 -4.5 10 Dual, External, N-Channel 1.2m Dual Negative Voltage Ideal Diode-OR Controller and Monitor $1.95 (LTC4354CS8#PBF)
46LTC4412HV 1 2.5 36 5 External, P-Channel, Single 18µ Rugged version of the LTC4412: Vin up to 36V $1.76 (LTC4412HVIS6#TRPBF)
47LTC4411 1 2.6 5.5 2.6 Internal, P-Channel, Single 40µ Integrated switch: Replaces power supply OR $1.66 (LTC4411ES5#TRPBF)
48LTC4412 1 2.5 28 5 External, P-Channel, Single 15µ Replaces power supply OR $1.36 (LTC4412ES6#TRPBF)
49LTC4410 1 4.35 5.5 500m External, P-Channel, Single 500µ Allows faster charging from USB port and complies with USB spec. $1.26 (LTC4410ES6#TRPBF)
50LTC1473L 2 4.75 30 5 Dual, External, N-Channel 100µ Power path management for multiple DC sources. 3.3V to 10V input. all N-Channel MOSFETs for low los $3.55 (LTC1473LCGN#PBF)
51LTC1479 3 6 28 5 External, N-Channel, Triple 175µ Triple PowerPath Controller for Dual Battery Systems and AC/DC $7.05 (LTC1479CG#PBF)
52LTC1473 2 4.75 30 5 Dual, External, N-Channel 100µ Dual, High Gate Drive $3.55 (LTC1473CGN#PBF)