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	Circuit Breakers	Vin Range	Isupply	Features	Comments	Packages	Circuit Breaker Threshold	Circuit Breaker Accuracy
Units	#		mA					%
Selection (hold Ctrl key to select multiple, hold Shift key to select range)

LTC4221	2	(1) 1 to 13.5 (1) 2.7 to 13.5	2.2	-	Dual Hot Swap Controller/Power Sequencer with Dual Speed, Dual Level Fault Protection	SSOP-16	25mV	18
LTC1645	2	(1) 1.18 to 13.2, (1) 2.3 to 13.2	1.1	-	Power Supply Sequencing, Reset, Fault outputs and spare comparator in 14-pin version	SO-14,SO-8	50mV	12
LTC4230	3	(1) 2.7 to 16.5, (1) 2.375 to 16.5, (1) 1.7 to 15.5	1.8	-	Controls three supplies. active current limiting on in-rush, timed circuit breaker or fast response to catastrophic faults	SSOP-20	50mV	20
LTC1421	2	(2) 2.6 to 13.2, (1) -5 to -12	1.5	-	Trip point of the ground sense comparator is set at 0.1V or 2.5V (LTC1421-2.5)	SSOP-24,SW-24	50mV	20
LTM9100	1	-1000V to 1000V	50	10-bit ADC, Digital Interface, Galvanic Isolation, Low Iq Shutdown	Anyside High Voltage Isolated Switch Controller with I²C Command and Telemetry	22mm x 9mm x 5.16mm BGA	50mV	10
LT1640A	1	-10V to -80V	1.3	-	-48V hot swap controller, Improved drain pin ruggedness, Powergood active high (AH) or low (AL)	N-8,SO-8	50mV	20
LTC4261	1	-12V to -100V	2	10-bit ADC, Digital Interface	Negative voltage hot swap controller with ADC and I2C, Defaults to latchoff, -2 for Auto-Retry	4x5 QFN-24,SSOP-28	50mV	10
LTC4253B	1	-15V to -500V	0.8	-	-48V Hot Swap Controller with Sequencer	SSOP-16	50mV	20
LTC4252	1	-15V to -500V	0.8	-	Negative voltage hot swap controllers, -1 Latchoff, -2 Auto-Retry, LTC4252A for tighter UV/OV/ECB accuracy.	MS-10,MS-8	50mV	10
LTC4251	1	-15V to -500V	0.8	-	Negative voltage hot swap controllers in SOT-23, Options for UV/OV thresholds	SOT-23	50mV	20
LT4250	1	-18V to -80V	1.6	-	-48V hot swap controller, Powergood active high (H) or low (L)	N-8,SO-8	50mV	20
LTC4214	1	0V to -16V	0.8	-	Multilevel current limiting, Controls -5V supplies if positive supply is available. -1 Latchoff, -2 Auto-Retry	MS-10	50mV	12
LTC4213	1	0V to 6V	1.6	Rsense Not Required	No RSENSE Electronic Circuit Breaker	3x2 DFN-8	25mV, 50mV, 100mV	10
LTC4216	1	0V to 6V	1.6	-	0V to 6V load voltages, active current limiting on in-rush, 2.3V to 6V bias voltage required, timer and glitch filter	4x3 DFN-12,MS-10	25mV	14
LT4254	1	10.8V to 36V	1.9	-	Positive high voltage hot swap controller with open circuit detect output	SSOP-16	50mV	20
LT4256-1/-2	1	10.8V to 80V	1.8	-	Positive high voltage hot swap. Pin-compatible with LT1641. -1 Latchoff, -2 Auto-Retry	SO-8	55mV	18
LT4256-3	1	10.8V to 80V	1.8	-	Positive high voltage hot swap controller with open circuit detect output. Higher voltage version of LT4254	SSOP-16	55mV	18
LTC4223	2	12, 3.3 aux	0.8	Current Monitor Output	Dual Supply Hot Swap Controller for Advanced Mezzanine Card	5x4 DFN-16,SSOP-16	50mV (12), 240mA (3.3 aux)	5
LTC4224	2	1V to 6V	1.4	-	Compact Dual Low Voltage Hot Swap Controller	3x2 DFN-10,MS-10	25mV	10
LTC1422	1	2.55V to 13.2V	0.65	-	System reset, programmable current limit	N-8,SO-8	50mV	28
LTC4212	1	2.5V to 16.5V	1	-	Power Good Input with Timer and Glitch Filter for assuring proper powering-up and monitoring of DC/DC converters	MS-10	50mV	20
LTC4211	1	2.5V to 16.5V	1	-	Active current limiting on in-rush, timed circuit breaker or fast response to catastrophic faults	MS-10,MS-8,SO-8	50mV	20
LTC4361	1	2.5V to 5.5V	0.22	Low Iq Shutdown	5.8V OV threshold, 50mV overcurrent threshold, 80V protection, Reverse input PFET driver, -1 Latchoff, -2 Auto-retry	2x2 DFN-8,SOT-23	50mV	10
LTC4362	1	2.5V to 5.5V	0.22	Integrated FET, Integrated Rsense, Low Iq Shutdown	5.8V OV threshold, Internal FET and sense resistor, 28V Protection, Reverse input PFET driver, -1 Latchoff, -2 Auto-retry	2x3 DFN-8	1.5A	20
LTC1647	2	2.7V to 16.5V	1	-	Dual hot swap controller, Options for separate or combined VCC, ON, FAULT pins	SO-8,SSOP-16	50mV	20
LTC4210	1	2.7V to 16.5V	0.65	-	Active current limiting with circuit breaker, -1 Auto-Retry, -2 Latchoff	SOT-23	50mV	12
LTC4231	1	2.7V to 36V	0.004	Low Iq, Low Iq Shutdown	Low Iq Hot Swap Controller, -1 remains off after fault, -2 automatic retry	3x3 QFN-12,MS-12	50mV	6
LTC1646	2	2.7V to 7V	1.5	-	3.3V and 5V supplies for CompactPCI, LOCAL_PCI_RST# logic, 1V precharge for data bus	SSOP-16	56mV	16
LTC4219	1	2.9 to 15 (5V or 12V presets)	1.6	Integrated FET, Integrated Rsense, Current Monitor Output	5A Integrated Hot Swap Controller	5x3 DFN-16	5.6A	10
LTC1642	1	2.97V to 16.5V	1.25	-	Protected against surges to 33V, output driver for SCR	SSOP-16	52.5mV	20
LTC1642A	1	2.97V to 16.5V	1.25	-	Protected against surges to 33V, output driver for SCR	SSOP-16	52.5mV	20
LTC4215/-2	1	2.9V to 15V	3	8-bit ADC, Digital Interface	I2C, 8-Bit ADC measures current & voltage, 1 GPIO, 20μs/420μs circuit breaker timeout	4x5 QFN-24,SSOP-16	25mV	10
LTC4215-1/-3	1	2.9V to 15V	3	8-bit ADC, Digital Interface	I2C, 8-Bit ADC measures current & voltage, 3 GPIO, 20μs/420μs circuit breaker timeout	4x5 QFN-24	25mV	10
LTC4232	1	2.9V to 15V	1.6	Integrated FET, Integrated Rsense, Current Monitor Output	5A Integrated Hot Swap Controller	5x3 DFN-16	5.6A	10
LTC4232-1	1	2.9V to 15V	1.6	Integrated FET, Integrated Rsense, Current Monitor Output	5A Integrated Hot Swap Controller, PCI Express Compliant	5x3 DFN-16	5.6A	10
LTC4234	1	2.9V to 15V	1.6	Guaranteed SOA, Integrated FET, Integrated Rsense, Current Monitor Output	20A Guaranteed SOA Hot Swap Controller	5x9 QFN-38	22.5A	11
LTC4280	1	2.9V to 15V	3	8-bit ADC, Digital Interface	Hot Swap Controller with I2C Compatible Monitoring	4x5 QFN-24	25mV	10
LTC4233	1	2.9V to 15V	1.6	Guaranteed SOA, Integrated FET, Integrated Rsense, Current Monitor Output	10A Guaranteed SOA Hot Swap Controller	5x9 QFN-38	11.2A	11
LTC4236	1	2.9V to 18V	2.7	Ideal Diode, Current Monitor Output	Dual Ideal Diode-OR and Single Hot Swap Controller with Current Monitor	4x5 QFN-28	25mV	10
LTC4229	1	2.9V to 18V	2	Ideal Diode	Ideal Diode and Hot Swap Controller	4x5 QFN-24,SSOP-24	25mV	10
LTC4227	1	2.9V to 18V	2	Ideal Diode	Dual ideal diode-OR and single hot swap controller, Options for latchoff/auto-Retry and 100ms/1.6ms startup	4x5 QFN-20,SSOP-16	50mV	5
LTC4228	2	2.9V to 18V	2.5	Ideal Diode	Dual ideal diode and hot swap controller, -1 Latchoff, -2 Auto-Retry	4x5 QFN-28,SSOP-28	50mV	5
LTC4217	1	2.9V to 26.5V	1.6	Integrated FET, Integrated Rsense, Current Monitor Output	2A Integrated Hot Swap Controller	5x3 DFN-16,TSSOP-20	2A	7.5
LTC4218	1	2.9V to 26.5V	1.6	Current Monitor Output	Hot Swap Controller	5x3 DFN-16,SSOP-16	15mV	5
LTC4222	2	2.9V to 29V	3	10-bit ADC, Digital Interface	Dual Hot Swap Controller with I2C Compatible Monitoring	5x5 QFN-32,SSOP-36	50mV	5
LTC4281	1	2.9V to 33V	3.5	12-/16-bit ADC, EEPROM, Digital Interface	Hot Swap Controller with I2C Compatible Monitoring	4x5 QFN-28	12.5mV to 34.37mV	2
LTC4282	1	2.9V to 33V	3.5	EEPROM, 12-/16-Bit ADC, Digital Interface, SOA Sharing	High Current Hot Swap Controller with I2C Compatible Monitoring	5x5 QFN-32	12.5mV to 34.37mV	2
LTC4241	5	3.3, 5, ±12, 3.3 aux	2.5	-	Controls 3.3V,5V, and 3.3V Aux with N-Channel FETs, ±12V supplies controlled with internal switches. Active high On for PCI	SSOP-20	55mV (3.3,5), 850mA (12), 450mA (-12)	27
LTC4242	6	3.3, 12, 3.3 aux	1.6	-	Dual Slot Hot Swap Controller for PCI Express	5x7 QFN-38,SSOP-36	50mV (3.3,12), 550mA (3.3 aux)	10
LTC4240	4	3.3, 5, ±12	3	Digital Interface	Controls 3.3V,5V with N-Channel FETs, ±12V supplies controlled with internal switches. I2C compatible interface	SSOP-28	55mV	9
LTC4244	4	3.3, 5, ±12	4	-	Rugged CompactPCI bus hot swap controllers, -1 option for applications without –12V	SSOP-20	52mV	14
LTC4245	4	3.3, 5, ±12 or 3.3, 12, 3.3 aux	3	8-bit ADC, Digital Interface	Multiple Supply Hot Swap Controller with I2C Compatible Monitoring	5x7 QFN-38,SSOP-36	25mV (3.3,5), 50mV (±12)	10
LTC1644	4	3.3, 5, ±12V	3	-	3.3V, 5V and ±12V supplies for CompactPCI, LOCAL_PCI_RST# logic, 1V precharge for data bus	SSOP-20	55mV	27
LTC1643A	4	3.3, 5, ±12V	3.5	-	Controls 3.3V and 5V with N-Channel FETs, ±12V supplies controlled with internal switches for PCI and CompactPCI	SSOP-16	53mV (5, 3.3), 850mA (12), 450mA (-12)	24.5
LTC4226	2	4.5V to 44V	0.7	-	Wide Operating Range Dual Hot Swap Controller	3x3 QFN-16,MS-16	50mV	10
LTC4380	1	4V to 72V	0.008	Surge Stopper, Low Iq, Low Iq Shutdown	Ride-through protection with 8uA Iq, Adjustable output-clamp and circuit-breaker with timer, Shutdown mode, Latchoff or auto-retry	3x3 DFN-10,MS-10	50mV	10
LT4356-1	1	4V to 80V	1	Surge Stopper, Low Iq Shutdown	Ride-through protection, Adjustable output-clamp and circuit-breaker with timer, Shutdown mode, Auto-retry	4x3 DFN-12,MS-10,SO-16	50mV	10
LT4356-3	1	4V to 80V	1	Surge Stopper, Low Iq Shutdown	Ride-through protection, Adjustable output-clamp and circuit-breaker with timer, Shutdown mode, Latchoff	4x3 DFN-12,MS-10,SO-16	50mV	10
LT4356-2	1	4V to 80V	1	Surge Stopper, Low Iq Shutdown	Ride-through protection, Adjustable output-clamp and circuit-breaker with timer, Shutdown mode (aux amp stays on), Auto-retry	4x3 DFN-12,SO-16	50mV	10
LTC4364	1	4V to 80V	0.37	Surge Stopper, Ideal Diode, Low Iq Shutdown	Ride-through protection with ideal diode, Adjustable output-clamp and circuit-breaker with timer, Shutdown mode, -1 Latchoff, -2 Auto-retry	4x3 DFN-14,MS-16,SO-16	50mV	10
LT4363	1	4V to 80V	0.7	Surge Stopper, Low Iq Shutdown	Ride-through protection, Adjustable output-clamp and circuit-breaker with timer, Shutdown mode, Latchoff or auto-retry	4x3 DFN-12,MS-12,SO-16	50mV	10
LT4356MP-2	1	4V to 80V	1	Surge Stopper, Low Iq Shutdown	Ride-through protection, Adjustable output-clamp and circuit-breaker with timer, -55C to 125C Operation, Shutdown mode (aux amp stays on), Auto-retry	SO-16	50mV	15
LT4356MP-1	1	4V to 80V	1	Surge Stopper, Low Iq Shutdown	Ride-through protection, Adjustable output-clamp and circuit-breaker with timer, -55C to 125C Operation, Shutdown mode, Auto-retry	MS-10,SO-16	50mV	15
LTC4260	1	8.5V to 80V	2	8-bit ADC, Digital Interface	Positive High Voltage Hot Swap Controller with I²C Compatible Monitoring	5x5 QFN-32,SSOP-24,SW-24	50mV	10
LTC4235	1	9V to 14V	2.7	Ideal Diode, Current Monitor Output	Dual 12V Ideal Diode-OR and Single Hot Swap Controller with Current Monitor	4x5 QFN-20	25mV	10
LT4220	2	±2.7V to ±16.5V	2.7	-	Controls positive and negative voltages. Selectable tracking mode	SSOP-16	48mV, -52mV	17

Circuit Breakers
Vin Range
Isupply
Features
Comments
Packages
Circuit Breaker Threshold
Circuit Breaker Accuracy
Active Limiting
Power Good Output
Fault Output
Reset Output
Foldback
In-Rush Current
Ishutdown
ADC
Temp Range
Design Tools
Demo Boards
Featured
New
Date Added
Price 1k*
Product Category
Package Area
Package Height
Export Control
Terminal Finish
Auto & Transport

(1) -5 to -12
(1) 1 to 13.5 (1) 2.7 to 13.5
(1) 1.18 to 13.2
(1) 1.7 to 15.5
(1) 2.3 to 13.2
(1) 2.375 to 16.5
(1) 2.7 to 16.5
(2) 2.6 to 13.2
-1000V to 1000V
-10V to -80V
-12V to -100V
-15V to -500V
-18V to -80V
0V to -16V
0V to 6V
10.8V to 36V
10.8V to 80V
12
1V to 6V
2.55V to 13.2V
2.5V to 16.5V
2.5V to 5.5V
2.7V to 16.5V
2.7V to 36V
2.7V to 7V
2.9 to 15 (5V or 12V presets)
2.97V to 16.5V
2.9V to 15V
2.9V to 18V
2.9V to 26.5V
2.9V to 29V
2.9V to 33V
3.3
3.3 aux
4.5V to 44V
4V to 72V
4V to 80V
5
8.5V to 80V
9V to 14V
±12
±12 or 3.3
±12V
±2.7V to ±16.5V

0.004
0.008
0.22
0.37
0.65
0.7
0.8
1
1.1
1.25
1.3
1.4
1.5
1.6
1.8
1.9
2
2.2
2.5
2.7
3
3.5
4
50

-48V Hot Swap Controller with Sequencer
-48V hot swap controller, Improved drain pin ruggedness, Powergood active high (AH) or low (AL)
-48V hot swap controller, Powergood active high (H) or low (L)
0V to 6V load voltages, active current limiting on in-rush, 2.3V to 6V bias voltage required, timer and glitch filter
10A Guaranteed SOA Hot Swap Controller
20A Guaranteed SOA Hot Swap Controller
2A Integrated Hot Swap Controller
3.3V and 5V supplies for CompactPCI, LOCAL_PCI_RST# logic, 1V precharge for data bus
3.3V, 5V and ±12V supplies for CompactPCI, LOCAL_PCI_RST# logic, 1V precharge for data bus
5.8V OV threshold, 50mV overcurrent threshold, 80V protection, Reverse input PFET driver, -1 Latchoff, -2 Auto-retry
5.8V OV threshold, Internal FET and sense resistor, 28V Protection, Reverse input PFET driver, -1 Latchoff, -2 Auto-retry
5A Integrated Hot Swap Controller
5A Integrated Hot Swap Controller, PCI Express Compliant
Active current limiting on in-rush, timed circuit breaker or fast response to catastrophic faults
Active current limiting with circuit breaker, -1 Auto-Retry, -2 Latchoff
Anyside High Voltage Isolated Switch Controller with I²C Command and Telemetry
Compact Dual Low Voltage Hot Swap Controller
Controls 3.3V and 5V with N-Channel FETs, ±12V supplies controlled with internal switches for PCI and CompactPCI
Controls 3.3V,5V with N-Channel FETs, ±12V supplies controlled with internal switches. I2C compatible interface
Controls 3.3V,5V, and 3.3V Aux with N-Channel FETs, ±12V supplies controlled with internal switches. Active high On for PCI
Controls positive and negative voltages. Selectable tracking mode
Controls three supplies. active current limiting on in-rush, timed circuit breaker or fast response to catastrophic faults
Dual 12V Ideal Diode-OR and Single Hot Swap Controller with Current Monitor
Dual Hot Swap Controller with I2C Compatible Monitoring
Dual Hot Swap Controller/Power Sequencer with Dual Speed, Dual Level Fault Protection
Dual Ideal Diode-OR and Single Hot Swap Controller with Current Monitor
Dual Slot Hot Swap Controller for PCI Express
Dual Supply Hot Swap Controller for Advanced Mezzanine Card
Dual hot swap controller, Options for separate or combined VCC, ON, FAULT pins
Dual ideal diode and hot swap controller, -1 Latchoff, -2 Auto-Retry
Dual ideal diode-OR and single hot swap controller, Options for latchoff/auto-Retry and 100ms/1.6ms startup
High Current Hot Swap Controller with I2C Compatible Monitoring
Hot Swap Controller
Hot Swap Controller with I2C Compatible Monitoring
I2C, 8-Bit ADC measures current & voltage, 1 GPIO, 20μs/420μs circuit breaker timeout
I2C, 8-Bit ADC measures current & voltage, 3 GPIO, 20μs/420μs circuit breaker timeout
Ideal Diode and Hot Swap Controller
Low Iq Hot Swap Controller, -1 remains off after fault, -2 automatic retry
Multilevel current limiting, Controls -5V supplies if positive supply is available. -1 Latchoff, -2 Auto-Retry
Multiple Supply Hot Swap Controller with I2C Compatible Monitoring
Negative voltage hot swap controller with ADC and I2C, Defaults to latchoff, -2 for Auto-Retry
Negative voltage hot swap controllers in SOT-23, Options for UV/OV thresholds
Negative voltage hot swap controllers, -1 Latchoff, -2 Auto-Retry, LTC4252A for tighter UV/OV/ECB accuracy.
No RSENSE Electronic Circuit Breaker
Positive High Voltage Hot Swap Controller with I²C Compatible Monitoring
Positive high voltage hot swap controller with open circuit detect output
Positive high voltage hot swap controller with open circuit detect output. Higher voltage version of LT4254
Positive high voltage hot swap. Pin-compatible with LT1641. -1 Latchoff, -2 Auto-Retry
Power Good Input with Timer and Glitch Filter for assuring proper powering-up and monitoring of DC/DC converters
Power Supply Sequencing, Reset, Fault outputs and spare comparator in 14-pin version
Protected against surges to 33V, output driver for SCR
Ride-through protection with 8uA Iq, Adjustable output-clamp and circuit-breaker with timer, Shutdown mode, Latchoff or auto-retry
Ride-through protection with ideal diode, Adjustable output-clamp and circuit-breaker with timer, Shutdown mode, -1 Latchoff, -2 Auto-retry
Ride-through protection, Adjustable output-clamp and circuit-breaker with timer, -55C to 125C Operation, Shutdown mode (aux amp stays on), Auto-retry
Ride-through protection, Adjustable output-clamp and circuit-breaker with timer, -55C to 125C Operation, Shutdown mode, Auto-retry
Ride-through protection, Adjustable output-clamp and circuit-breaker with timer, Shutdown mode (aux amp stays on), Auto-retry
Ride-through protection, Adjustable output-clamp and circuit-breaker with timer, Shutdown mode, Auto-retry
Ride-through protection, Adjustable output-clamp and circuit-breaker with timer, Shutdown mode, Latchoff
Ride-through protection, Adjustable output-clamp and circuit-breaker with timer, Shutdown mode, Latchoff or auto-retry
Rugged CompactPCI bus hot swap controllers, -1 option for applications without –12V
System reset, programmable current limit
Trip point of the ground sense comparator is set at 0.1V or 2.5V (LTC1421-2.5)
Wide Operating Range Dual Hot Swap Controller

22mm x 9mm x 5.16mm BGA
2x2 DFN-8
2x3 DFN-8
3x2 DFN-10
3x2 DFN-8
3x3 DFN-10
3x3 QFN-12
3x3 QFN-16
4x3 DFN-12
4x3 DFN-14
4x5 QFN-20
4x5 QFN-24
4x5 QFN-28
5x3 DFN-16
5x4 DFN-16
5x5 QFN-32
5x7 QFN-38
5x9 QFN-38
MS-10
MS-12
MS-16
MS-8
N-8
SO-14
SO-16
SO-8
SOT-23
SSOP-16
SSOP-20
SSOP-24
SSOP-28
SSOP-36
SW-24
TSSOP-20

1.5A
11.2A
12.5mV to 34.37mV
15mV
22.5A
25mV
25mV (3.3,5), 50mV (±12)
25mV, 50mV, 100mV
2A
48mV, -52mV
5.6A
50mV
50mV (12), 240mA (3.3 aux)
50mV (3.3,12), 550mA (3.3 aux)
52.5mV
52mV
53mV (5, 3.3), 850mA (12), 450mA (-12)
55mV
55mV (3.3,5), 850mA (12), 450mA (-12)
56mV