Options for Price Comparison
Distributor Statistics for TPS65251RHAT
Total in Stock: -
Lowest MOQ: -
Average Price: - per unit
Stocking Distributors: -
Loading...
Loading Results for TPS65251RHAT
Details for TPS65251RHAT by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
DC-DC CONV SYNC BUCK 2.2MHZ VQFN-40
TPS65251RHAT image

TPS65251RHAT by Texas Instruments

DC-DC CONV SYNC BUCK 2.2MHZ VQFN-40
Features
0.8 V, 1% Accuracy Reference
Adjustable Current Limit Set By External Resistor
Adjustable Switching Frequency 300 kHz to 2.2 MHz Set by External Resistor
Continuous Loading: 3 A (Buck 1), 2 A (Buck 2 and 3)
Current-Mode Control With Simple Compensation Circuit
Dedicated Enable for Each Buck
External Enable/Sequencing and Soft-Start Pins
External Synchronization Pin for Oscillator
Maximum Current: 3.5 A (Buck 1), 2.5 A (Buck 2 and 3)
Optional Low-Power Mode Operation for Light Loads
Powergood
Soft-Start Pins
VQFN Package, 40-Pin 6 mm u00d7 6 mm RHA
Wide Input Supply Voltage Range (4.5 to 18 V)
Part Information
TPS65251RHAT image
RoHS Compliant
Description
The TPS65251 features three synchronous wide input range high efficiency buck converters. The converters are designed to simplify its application while giving the designer the option to optimize their usage according to the target application. The converters can operate in 5-, 9-, 12- or 15-V systems and have integrated power transistors. The output voltage can be set externally using a resistor divider to any value between 0.8 V and close to the input supply. Each converter features enable pin that allows a delayed start-up for sequencing purposes, soft-start pin that allows adjustable soft-start time by choosing the soft-start capacitor, and a current limit (RLIMx) pin that enables designer to adjust current limit by selecting an external resistor and optimize the choice of inductor. The current mode control allows a simple RC compensation. The switching frequency of the converters can either be set with an external resistor connected to ROSC pin or can be synchronized to an external clock connected to SYNC pin if needed. The switching regulators are designed to operate from 300 kHz to 2.2 MHz. 180° out of phase operation between Buck 1 and Buck 2, 3 (Buck 2 and 3 run in phase) minimizes the input filter requirements.
Specifications
Input Voltage Min:
4.5V
Input Voltage Max:
18V
No. of Outputs:
3 Output
DC / DC Converter IC Case:
VQFN
No. of Pins:
40Pins
Output Current - Output 1:
3A
Output Current - Output 2:
2A
Output Voltage - Output 1:
-
Output Voltage - Output 2:
-
Regulator Output Type:
Adjustable
Switching Frequency:
2.2MHz
Topology:
Synchronous Buck (Step Down)
Operating Temperature Max:
125°C
Product Range:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 3 - 168 hours
SVHC:
No SVHC (27-Jun-2018)
Alternate Descriptions
4.5-18V Three Buck Switcher FET VQFN40EP RS Components
DC-DC CONV, SYNC BUCK, 2.2MHZ, VQFN-40; No. of Outputs:3 Output; Input Voltage Min:4.5V; Input Voltage Max:18V; DC / DC Converter IC Case:VQFN; No. of Pins:40Pins; Output Current - Output 1:3A; Output Current - Output 2:2A; Output RoHS Compliant: Yes Newark Electronics
Synchronous Step Down Three Buck Switcher 40-Pin VQFN EP T/R Avnet America
Synchronous Step Down Three Buck Switcher 40-Pin VQFN EP T/R Avnet Europe
DC/DC Converter [Texas Instruments] TPS65251RHAT DC/DC Converter Distrelec