Low Voltage Hot Swap Controllers Try our new parametric tables

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

LTC4361	1	2.5V to 5.5V	50mV	10	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
LTC4362	1	2.5V to 5.5V	1.5A	20	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
LTC4224	2	1V to 6V	25mV	10	1.4	-	Compact Dual Low Voltage Hot Swap Controller	3x2 DFN-10,MS-10
LTC4213	1	0V to 6V	25mV, 50mV, 100mV	10	1.6	Rsense Not Required	No RSENSE Electronic Circuit Breaker	3x2 DFN-8
LTC4231	1	2.7V to 36V	50mV	6	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
LTC4226	2	4.5V to 44V	50mV	10	0.7	-	Wide Operating Range Dual Hot Swap Controller	3x3 QFN-16,MS-16
LTC4216	1	0V to 6V	25mV	14	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
LTC4235	1	9V to 14V	25mV	10	2.7	Ideal Diode, Current Monitor Output	Dual 12V Ideal Diode-OR and Single Hot Swap Controller with Current Monitor	4x5 QFN-20
LTC4227	1	2.9V to 18V	50mV	5	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
LTC4280	1	2.9V to 15V	25mV	10	3	8-bit ADC, Digital Interface	Hot Swap Controller with I2C Compatible Monitoring	4x5 QFN-24
LTC4215-1/-3	1	2.9V to 15V	25mV	10	3	8-bit ADC, Digital Interface	I2C, 8-Bit ADC measures current & voltage, 3 GPIO, 20μs/420μs circuit breaker timeout	4x5 QFN-24
LTC4215/-2	1	2.9V to 15V	25mV	10	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
LTC4229	1	2.9V to 18V	25mV	10	2	Ideal Diode	Ideal Diode and Hot Swap Controller	4x5 QFN-24,SSOP-24
LTC4281	1	2.9V to 33V	12.5mV to 34.37mV	2	3.5	12-/16-bit ADC, EEPROM, Digital Interface	Hot Swap Controller with I2C Compatible Monitoring	4x5 QFN-28
LTC4236	1	2.9V to 18V	25mV	10	2.7	Ideal Diode, Current Monitor Output	Dual Ideal Diode-OR and Single Hot Swap Controller with Current Monitor	4x5 QFN-28
LTC4228	2	2.9V to 18V	50mV	5	2.5	Ideal Diode	Dual ideal diode and hot swap controller, -1 Latchoff, -2 Auto-Retry	4x5 QFN-28,SSOP-28
LTC4232	1	2.9V to 15V	5.6A	10	1.6	Integrated FET, Integrated Rsense, Current Monitor Output	5A Integrated Hot Swap Controller	5x3 DFN-16
LTC4219	1	2.9 to 15 (5V or 12V presets)	5.6A	10	1.6	Integrated FET, Integrated Rsense, Current Monitor Output	5A Integrated Hot Swap Controller	5x3 DFN-16
LTC4232-1	1	2.9V to 15V	5.6A	10	1.6	Integrated FET, Integrated Rsense, Current Monitor Output	5A Integrated Hot Swap Controller, PCI Express Compliant	5x3 DFN-16
LTC4218	1	2.9V to 26.5V	15mV	5	1.6	Current Monitor Output	Hot Swap Controller	5x3 DFN-16,SSOP-16
LTC4217	1	2.9V to 26.5V	2A	7.5	1.6	Integrated FET, Integrated Rsense, Current Monitor Output	2A Integrated Hot Swap Controller	5x3 DFN-16,TSSOP-20
LTC4223	2	12, 3.3 aux	50mV (12), 240mA (3.3 aux)	5	0.8	Current Monitor Output	Dual Supply Hot Swap Controller for Advanced Mezzanine Card	5x4 DFN-16,SSOP-16
LTC4282	1	2.9V to 33V	12.5mV to 34.37mV	2	3.5	EEPROM, 12-/16-Bit ADC, Digital Interface, SOA Sharing	High Current Hot Swap Controller with I2C Compatible Monitoring	5x5 QFN-32
LTC4222	2	2.9V to 29V	50mV	5	3	10-bit ADC, Digital Interface	Dual Hot Swap Controller with I2C Compatible Monitoring	5x5 QFN-32,SSOP-36
LTC4233	1	2.9V to 15V	11.2A	11	1.6	Guaranteed SOA, Integrated FET, Integrated Rsense, Current Monitor Output	10A Guaranteed SOA Hot Swap Controller	5x9 QFN-38
LTC4234	1	2.9V to 15V	22.5A	11	1.6	Guaranteed SOA, Integrated FET, Integrated Rsense, Current Monitor Output	20A Guaranteed SOA Hot Swap Controller	5x9 QFN-38
LTC4214	1	0V to -16V	50mV	12	0.8	-	Multilevel current limiting, Controls -5V supplies if positive supply is available. -1 Latchoff, -2 Auto-Retry	MS-10
LTC4212	1	2.5V to 16.5V	50mV	20	1	-	Power Good Input with Timer and Glitch Filter for assuring proper powering-up and monitoring of DC/DC converters	MS-10
LTC4211	1	2.5V to 16.5V	50mV	20	1	-	Active current limiting on in-rush, timed circuit breaker or fast response to catastrophic faults	MS-10,MS-8,SO-8
LTC1422	1	2.55V to 13.2V	50mV	28	0.65	-	System reset, programmable current limit	N-8,SO-8
LTC1645	2	(1) 1.18 to 13.2, (1) 2.3 to 13.2	50mV	12	1.1	-	Power Supply Sequencing, Reset, Fault outputs and spare comparator in 14-pin version	SO-14,SO-8
LTC1647	2	2.7V to 16.5V	50mV	20	1	-	Dual hot swap controller, Options for separate or combined VCC, ON, FAULT pins	SO-8,SSOP-16
LTC4210	1	2.7V to 16.5V	50mV	12	0.65	-	Active current limiting with circuit breaker, -1 Auto-Retry, -2 Latchoff	SOT-23
LTC1642A	1	2.97V to 16.5V	52.5mV	20	1.25	-	Protected against surges to 33V, output driver for SCR	SSOP-16
LTC1642	1	2.97V to 16.5V	52.5mV	20	1.25	-	Protected against surges to 33V, output driver for SCR	SSOP-16
LTC1643A	4	3.3, 5, ±12V	53mV (5, 3.3), 850mA (12), 450mA (-12)	24.5	3.5	-	Controls 3.3V and 5V with N-Channel FETs, ±12V supplies controlled with internal switches for PCI and CompactPCI	SSOP-16
LTC1646	2	2.7V to 7V	56mV	16	1.5	-	3.3V and 5V supplies for CompactPCI, LOCAL_PCI_RST# logic, 1V precharge for data bus	SSOP-16
LT4220	2	±2.7V to ±16.5V	48mV, -52mV	17	2.7	-	Controls positive and negative voltages. Selectable tracking mode	SSOP-16
LTC4221	2	(1) 1 to 13.5 (1) 2.7 to 13.5	25mV	18	2.2	-	Dual Hot Swap Controller/Power Sequencer with Dual Speed, Dual Level Fault Protection	SSOP-16
LTC1644	4	3.3, 5, ±12V	55mV	27	3	-	3.3V, 5V and ±12V supplies for CompactPCI, LOCAL_PCI_RST# logic, 1V precharge for data bus	SSOP-20
LTC4244	4	3.3, 5, ±12	52mV	14	4	-	Rugged CompactPCI bus hot swap controllers, -1 option for applications without –12V	SSOP-20
LTC4241	5	3.3, 5, ±12, 3.3 aux	55mV (3.3,5), 850mA (12), 450mA (-12)	27	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
LTC4230	3	(1) 2.7 to 16.5, (1) 2.375 to 16.5, (1) 1.7 to 15.5	50mV	20	1.8	-	Controls three supplies. active current limiting on in-rush, timed circuit breaker or fast response to catastrophic faults	SSOP-20
LTC1421	2	(2) 2.6 to 13.2, (1) -5 to -12	50mV	20	1.5	-	Trip point of the ground sense comparator is set at 0.1V or 2.5V (LTC1421-2.5)	SSOP-24,SW-24
LTC4240	4	3.3, 5, ±12	55mV	9	3	Digital Interface	Controls 3.3V,5V with N-Channel FETs, ±12V supplies controlled with internal switches. I2C compatible interface	SSOP-28

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

(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
0V to -16V
0V to 6V
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
5
9V to 14V
±12
±12V
±2.7V to ±16.5V

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
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 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
No RSENSE Electronic Circuit Breaker
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
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

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