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Details for TPS54320RHLR by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
DC/DC CONV SYNC BUCK 1.2MHZ VQFN-14
TPS54320RHLR image

TPS54320RHLR by Texas Instruments

DC/DC CONV SYNC BUCK 1.2MHZ VQFN-14
Features
0.8-V Voltage Reference With u00b11% Accuracy
200-kHz to 1.2-MHz Switching Frequency
Adjustable Input Undervoltage Lockout (UVLO)
Adjustable Slow Start/Power Sequencing
For SWIFTu2122 Documentation and SwitcherPro,
Hiccup Overcurrent Protection
Integrated 57-mu2126 / 50-mu2126 MOSFETs
Low 2-u00b5A Shutdown Quiescent Current
Monotonic Start-Up into Prebiased Outputs
Pin-to-Pin Compatible With the TPS54620
Power Good Output for Undervoltage and Overvoltage Monitoring
Split Power Rail: 1.6 to 17 V on PVIN
Supported by SwitcherProu2122 Software Tool
Synchronizes to External Clock
u201340u00b0C to 150u00b0C Operating Junction Temperature Range
Part Information
TPS54320RHLR image
RoHS Compliant
Description
The TPS54320 is a full featured 17-V, 3-A synchronous step-down converter which is optimized for small designs through high efficiency and integrated high-side and low-side MOSFETs. Further space savings are achieved through current mode control, which reduces component count, and by selecting a high switching frequency, reducing the inductor's footprint. The output voltage startup ramp is controlled by the SS/TR pin which allows operation as either a stand alone power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and the open drain power good pins. Cycle by cycle current limiting on the high-side FET protects the device in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. Hiccup protection will be triggered if the overcurrent condition has persisted for longer than the preset time. Thermal shutdown disables the part when die temperature exceeds thermal shutdown temperature. The TPS54320 is available in a 14-pin, 3.5-mm × 3.5-mm VQFN, thermally-enhanced package.
Specifications
Topology:
Synchronous Buck (Step Down)
Input Voltage Min:
4.5V
Input Voltage Max:
17V
No. of Outputs:
1Outputs
DC / DC Converter IC Case:
VQFN
No. of Pins:
14Pins
Output Current:
3A
Output Voltage Min:
800mV
Output Voltage Max:
15V
Switching Frequency:
1.2MHz
Operating Temperature Max:
150°C
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 2 - 1 year
SVHC:
No SVHC (27-Jun-2018)
Alternate Descriptions
4.5-17V 3A Buck SWIFT Converter VQFN14 RS Components
Conv DC-DC Single Step Down 4.5V to 17V 14-Pin VQFN EP T/R Avnet America
Conv DC-DC Single Step Down 4.5V to 17V 14-Pin VQFN EP T/R Avnet Europe