Texas Instruments LP875640RNFRQ1
- Part Number:
- LP875640RNFRQ1
- Manufacturer:
- Texas Instruments
- Ventron No:
- 6404449-LP875640RNFRQ1
- Description:
- Automotive multiphase quad 4-A buck converters with integrated switches
- Datasheet:
- lp87564-q1
- Regulated outputs (#)4
- Vin (min) (V)2.8
- Vin (max) (V)5.5
- Iout (max) (A)4
- RatingAutomotive
- Step-down DC/DC controller0
- Step-down DC/DC converter4
- Step-up DC/DC controller0
- Step-up DC/DC converter0
- LDO0
- Iq (typ) (mA)0.0067
- Switching frequency (max) (kHz)2200
- FeaturesDiagnostics
- Operating temperature range (°C)-40 to 125
- Processor nameGeneric
- Processor supplierGeneric
- Shutdown current (ISD) (typ) (μA)1.4
- Switching frequency (typ) (kHz)2000
- ConfigurabilityFactory programmable
The LP8756x-Q1 device is designed to meet the power-managementrequirements of the latest processors and platforms in various automotive power applications. Thedevice contains four step-down DC/DC converter cores, which are configured as a 4-phase output,3-phase and 1-phase outputs, 2-phase and 2-phase outputs, one 2-phase and two 1-phase outputs, orfour 1-phase outputs. The device is controlled by an I2C-compatibleserial interface and by enable signals.
The automatic pulse-width-modulation (PWM) to pulsed-frequency-modulation (PFM) operation(AUTO mode), together with the automatic phase adding and phase shedding, maximizes efficiency overa wide output-current range. The LP8756x-Q1 supports remote differential-voltagesensing for multiphase outputs to compensate IR drop between the regulator output and thepoint-of-load (POL) improving the accuracy of the output voltage. The switching clock can be forcedto PWM mode and also synchronized to an external clock to minimize the disturbances.
The LP8756x-Q1 device supports load-current measurement without theaddition of external current-sense resistors. The device also supports programmable start-up andshutdown delays and sequences synchronized to enable signals. The sequences can include GPIOsignals to control external regulators, load switches, and processor reset. During start-up andvoltage change, the device controls the output slew rate to minimize output-voltage overshoot andin-rush current.
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ImagePart NumberManufacturerRegulated outputs (#)Vin (min) (V)Vin (max) (V)Iout (max) (A)RatingStep-down DC/DC controllerStep-down DC/DC converterStep-up DC/DC controllerStep-up DC/DC converterLDOIq (typ) (mA)Switching frequency (max) (kHz)FeaturesOperating temperature range (°C)Processor nameProcessor supplierShutdown current (ISD) (typ) (μA)Switching frequency (typ) (kHz)ConfigurabilityView Compare
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LP875640RNFRQ142.85.54Automotive040000.00672200Diagnostics-40 to 125GenericGeneric1.42000Factory programmable-
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42.85.54Automotive040000.00672200Diagnostics-40 to 125GenericGeneric1.42000Factory programmable
-
42.85.54Automotive040000.00672200Diagnostics-40 to 125GenericGeneric1.42000Factory programmable
-
12.85.516Automotive010000.00672200Dynamic voltage scaling-40 to 125GenericGeneric1.42000Factory programmable
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