参数资料
| 型号： | TPS54240QDGQRQ1 |
| 厂商： | Texas Instruments |
| 文件页数： | 1/52页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 2.5A 10MSOP |
| 标准包装： | 1 |
| 系列： | SWIFT™, Eco-Mode™ |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.8 V ~ 39 V |
| 输入电压： | 3.5 V ~ 42 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 100kHz ~ 2.5MHz |
| 电流 - 输出： | 2.5A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 |
| 包装： | 标准包装 |
| 供应商设备封装： | 10-MSOP-PowerPad |
| 其它名称： | 296-28182-6 |
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SLVSAQ4B – DECEMBER 2010 – REVISED SEPTEMBER 2013
3.5-V to 42-V STEP-DOWN SWIFT? DC/DC CONVERTER WITH Eco-mode? CONTROL
SCHEME
Check for Samples: TPS54240-Q1
1
FEATURES
APPLICATIONS
2
?
Qualified for Automotive Applications
?
12-V and 24-V Industrial and Commercial Low-
?
AEC Q100 Qualified With the Following
Power Systems
Results:
?
GSM, GPRS Modules in Fleet Management, E-
– Device Temperature Grade 1: –40°C to
125°C Ambient Operating Temperature
Range
– Device HBM ESD Classification Level H2
– Device CDM ESD Classification Level C6
Meters, and Security Systems
DESCRIPTION
The TPS54240-Q1 device is a 42-V, 2.5-A, step-
down regulator with an integrated high-side MOSFET.
Current-mode control provides simple external
?
?
?
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3.5-V to 42-V Input Voltage Range
200-m ? High-Side MOSFET
High Efficiency at Light Loads With a Pulse-
Skipping Eco-mode? Control Scheme
138- μ A Operating Quiescent Current
1.3- μ A Shutdown Current
100-kHz to 2.5-MHz Switching Frequency
Synchronizes to External Clock
Adjustable Slow Start/Sequencing
UV and OV Power-Good Output
Adjustable UVLO Voltage and Hysteresis
0.8-V Internal Voltage Reference
MSOP10 PowerPAD? Package
Supported by SwitcherPro? Software Tool
For SWIFT? Documentation, See the TI Web
site at http://www.ti.com/swift
SIMPLIFIED SCHEMATIC
compensation and flexible component selection. A
low-ripple pulse-skip mode reduces the no-load,
regulated-output supply current to 138 μ A. Using the
enable pin, shutdown supply current is reduced to 1.3
μ A when the enable pin is low.
Undervoltage lockout is internally set at 2.5 V, but
can be increased using the enable pin. The output
voltage start-up 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 foldback and thermal shutdown protects
the part during an overload condition.
The TPS54240-Q1 is available in a 10-pin thermally
enhanced MSOP PowerPAD package.
EFFICIENCY vs LOAD CURRENT
100
V IN
VIN
PWRGD
TPS54240
90
80
70
EN
SS /TR
RT /CLK
BOOT
PH
V OUT
60
50
40
30
COMP
VSENSE
20
10
VIN=12V
VOUT=3.3V
fsw=300kHz
0
GND
0
0.5
1.0 1.5 2.0
I O - Output Current - A
2.5
3.0
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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright ? 2010–2013, Texas Instruments Incorporated
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| TPS54240QDRCRQ1 | 功能描述:Buck, Split Rail Switching Regulator IC Positive Adjustable 0.8V 1 Output 2.5A 10-VFDFN Exposed Pad 制造商:texas instruments 系列:汽车级，AEC-Q100，SWIFT?，Eco-Mode? 包装:剪切带（CT） 零件状态:有效 功能:降压 输出配置:正 拓扑:降压，分离轨 输出类型:可调式 输出数:1 电压 - 输入（最小值）:3.5V 电压 - 输入（最大值）:42V 电压 - 输出（最小值/固定）:0.8V 电压 - 输出（最大值）:39V 电流 - 输出:2.5A 频率 - 开关:100kHz ~ 2.5MHz 同步整流器:无 工作温度:-40°C ~ 125°C（TA） 安装类型:表面贴装 封装/外壳:10-VFDFN 裸露焊盘 供应商器件封装:10-VSON（3x3） 标准包装:1 |
| TPS54260 | 制造商:TI 制造商全称:Texas Instruments 功能描述:3.5V to 60V INPUT, 2.5A, STEP DOWN CONVERTER WITH ECO-MODE? |
| TPS54260_1 | 制造商:TI 制造商全称:Texas Instruments 功能描述:3.5V to 60V INPUT, 2.5A, STEP DOWN CONVERTER WITH ECO-MODE? |
| TPS54260_2 | 制造商:TI 制造商全称:Texas Instruments 功能描述:3.5V to 60V INPUT, 2.5A, STEP DOWN CONVERTER WITH ECO-MODE? |
| TPS54260DGQ | 功能描述:直流/直流开关调节器 3.5-60V 2.5A 2.5MHz Step Down Converter RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
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