TPS54310PWPR

Number of Outputs :
Maximum Operating Temperature : + 125 C
Mounting Style : SMD/SMT
Input Voltage MAX : 6 V
Output Voltage : 2.8 V
Switching Frequency : 280 KHz to 700 KHz
Package / Case : HTSSOP-20
Output Current : 100 uA


Description

The TPS54310PWPR is one member of the TPS54310 series.As members of the SWIFT family of dc/dc regulators,the TPS54310 low-input-voltage high-output-current synchronous-buck PWM converter integrates all required active components. Included on the substrate with the listed features are a true, high performance,voltage error amplifier, TPS54310PWPR provides high performance under transient conditions; an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 3 V; an internally and externally set slow-start circuit to limit in-rush currents; and a power good output useful for processor/logic reset, fault signaling, and supply sequencing.

Features of the TPS54310PWPR are:(1)60-m MOSFET switches for high efficiency at 3-A continuous output source or sink current; (2)0.9-V to 3.3-V adjustable output voltage with 1% accuracy; (3)externally compensated for design flexibility; (4)fast transient response; (5)wide PWM frequency: fixed 350 kHz, 550 kHz, or adjustable 280 kHz to 700 kHz; (6)load protected by peak current limit and thermal shutdown; (7)integrated solution reduces board area and total cost.The TPS54310 device is available in a thermally enhanced 20-pin TSSOP (PWP) PowerPAD package, which eliminates bulky heatsinks. TI provides evaluation modules and the SWIFT designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.

The absolute maximum ratings of the TPS54310PWPR can be summarized as:(1)storage temperature range:-65 to 150;(2)lead temperature range:300;(3)input supply voltage:-0.3 to 7V;(4)Source current:6mA.Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.However, ground noise on an analog ground plane can also cause problems with some of the control and bias signals. For these reasons, separate analog and power ground planes are recommended. These two planes should tie together directly at the IC to reduce noise between the two grounds.The only components that should tie directly to the power ground plane are the input capacitor, the output capacitor,the input voltage decoupling capacitor, and the PGND pins of the TPS54310.

Parameters:

Technical/Catalog Information	TPS54310PWPR
Vendor	Texas Instruments
Category	Integrated Circuits (ICs)
Type	Step-Down (Buck)
Number of Outputs	1
Voltage - Input	3 ~ 6 V
Voltage - Output	0.9 ~ 3.3 V
Current - Output	3A
Power - Output	3.85W
Package / Case	20-TSSOP Exposed Pad, 20-eTSSOP, 20-HTSSOP
Packaging	Tape & Reel (TR)
Internal Switch(s)	Yes
Synchronous	Yes
Rds (On)	59 mOhm
Operating Temperature	-40°C ~ 125°C
Frequency - Switching	350kHz, 550kHz
Drawing Number	296; 4073225; PWP; 14, 16, 20, 24, 28
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	TPS54310PWPR TPS54310PWPR