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	Texas Instruments LM3409MYX/NOPB	Texas Instruments LP8543SQ/NOPB	Texas Instruments LM25069PMMX-2/NOPB	Texas Instruments LM25061PMM-2/NOPB	Texas Instruments LM27402SQX/NOPB	Texas Instruments LP3910SQ-AP/NOPB	Texas Instruments LP3910SQX-AN/NOPB	Texas Instruments LP3910SQ-AK/NOPB	Texas Instruments LM21215MHE/NOPB	Texas Instruments LM21215MH/NOPB
Price	$1.11		$1.07		$1.24	$3.22		$3.81
RoHS	Compliant	Compliant	Compliant	Yes	Compliant	Yes	Compliant	Compliant	Compliant	Compliant
Lead Status	No	No	No	Yes	No	Yes	No	No	No	No
Vout(Min)(V)	1.24	10			0.6	0.8	0.8	0.8	0.6	0.6
Approx. Price (US$)	0.55 \| 1ku	0.99 \| 1ku		1.10 \| 1ku	1.10 \| 1ku	2.11 \| 1ku	2.11 \| 1ku	2.11 \| 1ku	3.55 \| 1ku	3.55 \| 1ku
Comments	Controlled-ON Time (hysteretic),High Side Current Sense
Topology	Buck	Boost,Current Sink
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
Operating Temperature Range(C)	-40 to 125	-30 to 85	-40 to 85	-40 to 85	-40 to 125	-40 to 85	-40 to 85	-40 to 85	-40 to 125	-40 to 125
Switching Frequency(Min)(kHz)	50				200				500	500
Vin(Min)(V)	6	5.5	2.9	2.9	3	2.5	2.5	2.5	2.95	2.95
Vin(Max)(V)	42	22	17	17	20	6	6	6	5.5	5.5
Regulated Outputs(#)	1				1	5	5	5	1	1
Package Group	MSOP-PowerPAD,PDIP	WQFN	VSSOP	VSSOP	HTSSOP,WQFN	WQFN	WQFN	WQFN	HTSSOP	HTSSOP
Switching Frequency(Max)(kHz)	2000	1250			1200	2000	2000	2000	500	500
Vref(V)	0.248
Dimming Method	Analog,PWM
Package Size	mm2	mm2	mm2	mm2		mm2	mm2	mm2
Iout(Max)(A)	5				30	1	1	1	15	15
Special Features	Adjustable Switch Frequency,Enable/Shutdown,Precision Dimming Control,Thermal Shutdown	Enable/Shutdown,I2C Control,PWM Control			Enable,Frequency Synchronization,Power Good,Pre-Bias Start-Up,Synchronous Rectification,Tracking	Comm Control,Enable,Power Sequencing	Comm Control,Enable,Power Sequencing	Comm Control,Enable,Power Sequencing	Adjustable Current Limit,Enable,Power Good,Pre-Bias Start-Up,Synchronous Rectification,Tracking	Adjustable Current Limit,Enable,Power Good,Pre-Bias Start-Up,Synchronous Rectification,Tracking
Power Factor Correction(Min)	N/A
Input Voltage(Type)	DC/DC
Type	Controller,Inductive	Inductive			Controller				Converter	Converter
Iq(Typ)(mA)	2				4.5	0.03	0.03	0.03	1.5	1.5
Vout(Max)(V)	42	40			18.6	3.3	3.3	3.3	5.5	5.5
LED Current Per Channel(mA)		60
Peak Efficiency(%)		91
LED(#)		70
Shutdown Current(Typ)(uA)		1
Channels(#)		7
Fault Response			Auto Retry,Latch Off	Auto Retry,Latch Off
Vabsmax_cont(V)			20	20
Current Limit Threshold(Typ)(Ext FET=mV)			50	50
Current Limit Function Enabled			Always	Always
Channel(s) Controlled(#)			1	1
Current Measurement Accuracy(%)			N/A
Design Support			Calculation Tool,EVM,Simulation Model,WEBENCH Design	Calculation Tool,EVM,Simulation Model,WEBENCH Design
ON_OFF Control Input(s)			EN	EN
Status Output			PG	PG
FET Protection			SOA	SOA
Current Limit Accuracy			50 mV +/- 10%	50 mV +/- 10%
Power Measurement Accuracy(%)				-
Voltage Measurement Accuracy(%)				-
Number of Phases					1
Duty Cycle(Max)(%)					95				100	100
LDO						2	2	2
Step-Down DC/DC Converter						2	2	2
Control Mode									Voltage Mode	Voltage Mode