LM27222SD/NOPB ,High-Speed 4.5A Synchronous MOSFET Driver 8-WSON -40 to 125Connection DiagramSW 1 8 GNDHG 2 7 LGCB 3 6VCCIN 4 5 LENFigure 1. Top ViewSOIC-8 (Package # D0008A) ..
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LM2722MX-NOPB ,High Speed Synchronous/Asynchronous MOSFET Driver 8-SOIC FEATURES DESCRIPTIONThe LM2722, part of the LM2726 family, is designed2• Synchronous or Asynchronou ..
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LM60BIM3 ,2.7V, SOT-23 Temperature SensorElectrical CharacteristicsUnless otherwise noted, these specifications apply for +V = +3.0 V and I ..
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LM60CIM3 ,2.7V, SOT-23 Temperature SensorFeaturesn Nonlinearity: ±0.8˚C (max)n Calibrated linear scale factor of +6.25 mV/˚Cn Output Impedan ..
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LM6104M ,Quad Gray Scale Current Feedback AmplifierFeatures (Typicalunlessotherwisenoted)Y eLow power I 875 mA/amplifierThe LM6104 quad amplifier meet ..
LM6118N ,Fast Settling Dual Operational AmplifiersFeaturesThe LM6118/LM6218 are monolithic fast-settlingTypicalunity-gain-compensated dual operationa ..
LM27222M/NOPB-LM27222SD/NOPB
High-Speed 4.5A Synchronous MOSFET Driver 8-SOIC -40 to 125
VCC
LEN
LM27222 1
(to controller)
VCC
4V to 6.85V C2
0.33 PF
VIN
VOUT+
up to 30V
0.5V to
Vin - 0.5V
LM27222
www.ti.com SNVS306B –SEPTEMBER 2004–REVISED MARCH 2013
LM27222 High-Speed 4.5A Synchronous MOSFET Driver
Checkfor Samples: LM27222
1FEATURES DESCRIPTIONThe LM27222isa dual N-channel MOSFET driver
Adaptive Shoot-through Protection designed to drive MOSFETs in push-pull
• 10ns Dead Time configurationsas typically usedin synchronous buck
8ns Propagation Delay regulators. The LM27222 takes the PWM output from controller and provides the proper timing and drive
• 30ns Minimum On-time levelsto the power stage MOSFETs. Adaptive shoot-
• 0.4Ω Pull-down and 0.9Ω Pull-up Drivers through protection prevents damaging and efficiency
• 4.5A Peak Driving Current reducing shoot-through currents, thus ensuringa
robust design capableof being used with nearly any
• MOSFET Tolerant Design MOSFET. The adaptive shoot-through protection
• 5µA Quiescent Current circuitry also reduces the dead time downto as low
• 30V Maximum Input Voltagein Buck as 10ns, ensuring the highest operating efficiency.
Configuration The peak sourcing and sinking current for each driver the LM27222 is about 3A and 4.5Amps
• 4Vto 6.85V Operating Voltage respectively witha Vgsof 5V. System performanceis
• SOIC-8 and WSON Packages also enhanced by keeping propagation delays down 8ns. Efficiencyis once again improvedatall load
APPLICATIONS currents by supporting synchronous, non-
synchronous, and diode emulation modes through the
• High Current Buck And Boost VoltageLEN pin. The minimum output pulse width realizedat
Converters the outputof the MOSFETsis as low as 30ns. This
• Fast Transient DC/DC Power Supplies enables high operating frequencies at very high
• Single Ended Forward Output Rectification conversion ratios in buck regulator designs. To
support low power statesin notebook systems, the
• CPU And GPU Core Voltage Regulators LM27222 draws only5µA from the 5V rail when the and LEN inputs are lowor floating.
Typical Application
