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參數(shù)資料
| 型號： | TPS54260QDGQRQ1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 2.5 A SWITCHING REGULATOR, 2500 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | GREEN, PLASTIC, MSOP-10 |
| 文件頁數(shù)： | 1/48頁 |
| 文件大小： | 1456K |
| 代理商： | TPS54260QDGQRQ1 |
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0
10
20
30
40
50
60
70
80
100
0
0.5
1.0
1.5
2.0
I - Output Current - A
O
Efficiency
-
%
2.5
3.0
90
VIN=12V
VOUT=3.3V
fsw=300kHz
PH
VIN
GND
BOOT
VSENSE
COMP
TPS54260-Q1
EN
RT /CLK
SS /TR
PWRGD
SLVSAH8A
– DECEMBER 2010 – REVISED APRIL 2011
3.5 V to 60 V STEP DOWN CONVERTER WITH ECO-MODE
Check for Samples: TPS54260-Q1
1
FEATURES
0.8-V Internal Voltage Reference
MSOP10 Package With PowerPAD
2
Qualified for Automotive Applications
Supported by SwitcherPro
Software Tool
3.5 V to 60 V Input Voltage Range
200-m
High-Side MOSFET
High Efficiency at Light Loads with a Pulse
For SWIFT
Documentation, See the TI
Skipping Eco-Mode
Website at http://www.ti.com/swift
138
μA Operating Quiescent Current
1.3
μA Shutdown Current
APPLICATIONS
100kHz to 2.5MHz Switching Frequency
12-V and 24-V Industrial and Commercial Low
Synchronizes to External Clock
Power Systems
Adjustable Slow Start/Sequencing
GSM, GPRS Modules in Fleet Management,
UV and OV Power Good Output
E-Meters, and Security Systems
Adjustable UVLO Voltage and Hysteresis
DESCRIPTION
The TPS54260-Q1 device is a 60 V, 2.5 A, step down regulator with an integrated high side MOSFET. Current
mode control provides simple external compensation and flexible component selection. A low ripple pulse skip
mode reduces the no load, regulated output supply current to 138
μA. Using the enable pin, shutdown supply
current is reduced to 1.3
μA, when the enable pin is low.
Under voltage lockout is internally set at 2.5V, but can be increased using the enable pin. The output voltage
startup ramp is controlled by the slow start pin that can also be configured for sequencing/tracking. An open
drain power good signal indicates the output is within 94% to 107% of its nominal voltage.
A wide switching frequency range allows efficiency and external component size to be optimized. Frequency fold
back and thermal shutdown protects the part during an overload condition.
The TPS54260-Q1 is available in 10-pin thermally enhanced MSOP Power Pad
package.
SIMPLIFIED SCHEMATIC
EFFICIENCY vs LOAD CURRENT
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
Eco-Mode, PowerPAD, SwitcherPro, SWIFT are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright
2010–2011, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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