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TPS2554DRCT

Texas Instruments TPS2554DRCT

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TPS54327DDA

Texas Instruments TPS54327DDA

Price $1.30 $1.97 $1.24
RoHS Yes Yes Compliant Compliant Compliant Yes Compliant Yes Compliant
Lead Status Yes Yes No No No Yes No Yes No
Current Limit(A) 0.25 to 2.7
Operating Temperature Range(C) -40 to 85 -40 to 85 -40 to 85 -40 to 85 -40 to 85 -40 to 125 -40 to 125 -40 to 125 -40 to 85
Rating Catalog Catalog Catalog Catalog Catalog Catalog Catalog Catalog Catalog
Vin(Min)(V) 4.5 4.3 2.7 1.7 2 4.5
Current Limit Topology Constant-Current
Current Limit Accuracy @ 1A 10%
Continuous Current(Max)(A) 2.5
rDS(on) per FET(Typ)(mOhms) 73
Vin(Max)(V) 5.5 16 5.5 5.5 5.5 18
Package Group VSON VQFN MSOP-PowerPAD,SOIC MSOP-PowerPAD,SOIC SOT-23 HTSSOP SON,SOT-223,SOT-23 DSBGA,WSON SO PowerPAD,VSON
Number of Switches 1
Approx. Price (US$) 0.85 | 1ku 6.50 | 1ku 1.05 | 1ku 1.10 | 1ku 0.75 | 1ku 1.75 | 1ku 0.75 | 1ku 0.48 | 1ku 0.65 | 1ku
Enable Active High
Package Size mm2 mm2 mm2 mm2 mm2 mm2 mm2
LDO 7
Vout(Max)(V) 4.46 5 5.4 5 7
Regulated Outputs(#) 11 1 1 1
Processor Name IMX21,PXA900
Step-Down DC/DC Converter 2
Estimated Package Size (WxL)(mm2) [pf]56VQFN[/pf]
Processor Supplier Freescale,Marvell
Special Features Comm Control,Power Sequencing Active Low Enable,Manual Reset,Watchdog Timer Active Low Enable,Manual Reset Watchdog Timer Enable,Power Good Enable Enable,Synchronous Rectification
Iout(Max)(A) 0.6 1.5 0.4 0.25 3
Vout(Min)(V) 0.6 1.5 1.2 1 0.76
Time Delay(ms) 200 200 25
Output Driver Type / Reset Output Active-low,Push-pull Active-low,Push-pull Active-low,Open-drain
Iq(Typ)(uA) 15 40 9
Monitored Voltage 2 (typ)(Nom)(V) 3.3 N/A N/A
Threshold Voltage 2 (typ)(Typ)(V) 2.93 N/A N/A
# of Supplies Monitored 2 3 1
VCC(Max)(V) 6 6 6
VCC(Min)(V) 2.7 2 2
Reset Threshold Accuracy(%) 2.7 3.2 2.2
Watchdog Timer WDI(sec) 1.6 None Programmable
Monitored Voltage 1 (typ)(Nom)(V) 5 Adjustable,1.8,2.5,3.3,5 2.5,3,3.3,5
Threshold Voltage 1(Typ)(V) 4.55 Adjustable,1.68,2.25,2.93,4.55 2.25,2.64,2.93,4.55
VCC(Nom)(V) 6
PSRR @ 100KHz(dB) 17 32 45
Thermal Resistance JA(C/W) 43 160
Vdo(Typ)(mV) 160 75 130
Noise(uVrms) 60 30 33.5
Output Capacitor Type Non-Ceramic Cap Free,Ceramic Ceramic
Iq(Typ)(mA) 0.075 0.4 0.008 0.8
Accuracy(%) 2 1 2
Output Options Adjustable Output,Fixed Output Adjustable Output,Fixed Output Fixed Output
Fixed Output Options(V) 1.8,2.5,3.3 1.25,1.5,1.6,1.8,1.9,2.5,3,3.2,3.3,4.3 1,1.05,1.1,1.2,1.5,1.8,1.85,1.9,2.5,2.7,2.8,2.85,3,3.3,4.8,5
Additional Features Enable,Fast Transient Response,Foldback Overcurrent Protection,Reverse Current Protection,Soft Start,Thermal Shutdown
Duty Cycle(Max)(%) 90
Type Converter
Control Mode D-CAP2
Switching Frequency(Max)(kHz) 700
Switching Frequency(Min)(kHz) 700