Features: ` Switcher Controller: Adjustable-Output Buck Converter, 0.75 V to 3.3 V Wide Input Voltage Range: 3.0-V to 28-V D-CAP™ Mode with 100-ns Load Step Response Current Mode Option Supports Ceramic Output Capacitors Current Sensing From RDS(ON) or Resistor Internal Switch Supports Dynam...
TPS51511: Features: ` Switcher Controller: Adjustable-Output Buck Converter, 0.75 V to 3.3 V Wide Input Voltage Range: 3.0-V to 28-V D-CAP™ Mode with 100-ns Load Step Response Current Mode Option Suppor...
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US $1.45 - 2.33 / Piece
DC/DC Switching Controllers Lo Inpt Vltg Triple Ch Cntrllr
US $.97 - 1.05 / Piece
DC/DC Switching Controllers Lo Input Vltg Triple Ch Cntrlr
|
VALUE |
UNIT | |||
|
Input voltage range(2) |
VBST |
0.3 to 36 |
V | |
|
VBST(3) |
0.3 to 6 |
V | ||
|
V5IN, VLDOIN |
0.3 to 6 |
V | ||
|
CS, VLDOFB, VOSW |
0.3 to 6 |
V | ||
|
ENSW, ENLDO, VSWFB, ODOFF |
0.3 to 6 |
V | ||
|
PGND |
0.3 to 0.3 |
V | ||
|
Output voltage range (2) |
DRVH |
1.0 to 36 |
V | |
|
LL |
1.0 to 30 |
V | ||
|
DRVL |
0.3 to 6 |
V | ||
|
VLDO, OD, COMP, PGOOD |
0.3 to 6 |
V | ||
|
qJA |
Thermal information |
Junction-to-Ambient thermal resistance |
53.34 |
/W |
|
qJC |
Junction-to-PowerPAD thermal resistance |
8.84 |
/W | |
|
TA Operating ambient temperature range |
40 to 85 |
|||
|
TJ Operating junction temperature range |
40 to 125 |
|||
|
Tstg Storage temperature |
55 to 150 |
|||
(1) 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. (2) All voltage values are with respect to the network ground terminal unless otherwise noted. (3) Voltage value is with respect to the LL terminal.
The TPS51511 is a 350-kHz D-CAP-mode synchronous switcher with a 2-A, source-only low drop-out (LDO) regulator. TPS51511 is specifically designed for low cost/low noise/low external-component count power systems for GPU applications. The integrated 'OD' switch in the buck controller supports dynamic output voltage change. The current mode option of the synchronous buck converter can support pure output ceramic-capacitor applications. The open-drain LDO power-good signal can be accessed through the OD pin when it is needed in the application. The TPS51511 is available in the thermally-enhanced 20-pin QFN package, and is specified from 40 to 85.