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LM2937IMPX-3.3

Texas Instruments LM2937IMPX-3.3

Price $0.65 $1.51 $2.49
RoHS Compliant Compliant Yes Yes Compliant Compliant Not Compliant Not Compliant Yes No
Lead Status No Yes Yes No No No No Yes No
Power Switch MOSFET MOSFET MOSFET MOSFET
Rating Catalog Catalog Catalog Catalog Catalog Catalog
Input VCC(Max)(V) 14 14 14 6.85
Input VCC(Min)(V) 3.5 3.5 3.5 4
Operating Temperature Range(C) -40 to 125 -40 to 125 -40 to 125 -40 to 125 -40 to 125 -40 to 125,-40 to 85
Channel Input Logic Inverting,Non-Inverting,Combination Inverting,Non-Inverting,Combination Inverting,Non-Inverting,Combination CMOS
Approx. Price (US$) 0.58 | 1ku 0.58 | 1ku 0.58 | 1ku 1.00 | 1ku 1.43 | 1ku 1.30 | 1ku 0.65 | 1ku
Input Threshold TTL TTL TTL
Package Group MSOP-PowerPAD,SOIC MSOP-PowerPAD,SOIC MSOP-PowerPAD,SOIC SOIC,WSON HTSSOP,WSON TSSOP,WSON DDPAK/TO-263,SOT-223,TO-220
Input Negative Voltage(V) 0 0 0
Number of Channels(#) 2 2 2 2
Rise Time(ns) 14 14 14 17
Special Features UVLO Configured to Drive PFET through OUT_A UVLO Configured to Drive PFET through OUT_A UVLO Configured to Drive PFET through OUT_A Enable Error Amplifier,Programmable UVLO,Thermal Shutdown N/A
Peak Output Current(A) 5 5 5 4.5
Prop Delay(ns) 25 25 25
Fall Time(ns) 12 12 12 14
Duty Cycle(Max)(%) 99
Vout(Min)(V) 2.5 3.3
Vin(Max)(V) 75 75 26
Vout(Max)(V) 70 3.3
Vin(Min)(V) 8 1.8 4.75
Switching Frequency(Min)(kHz) 50
Iout(Max)(A) 1 0.5
Regulated Outputs(#) 1 1
Switching Frequency(Max)(kHz) 1000
Iq(Typ)(mA) 0.65 2
Control Mode Constant on-time (COT)
Type Converter
PoE Current Limit(Min)(mA) 300
Fault Response Thermal Cycling
DC/DC Control PD and DC/DC
PD Power Level 13W
rDS(on) per FET(Typ)(mOhms) 1000
Package Size mm2 mm2
PoE Standards Supported 802.3at Type 1 (802.3af)
PoE Inrush Limit(Typ)(mA) Programmable
Switching Frequency Programmable,Synchronizable
PSRR @ 100KHz(dB) 57
Vdo(Typ)(mV) 500
Thermal Resistance JA(C/W) 42
Output Options Fixed Output
Fixed Output Options(V) 3.3
Noise(uVrms) 99
Accuracy(%) 4.5
Output Capacitor Type Ceramic