参数资料
型号: TPS54240QDGQRQ1
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: 2.5 A SWITCHING REGULATOR, 2500 kHz SWITCHING FREQ-MAX, PDSO10
封装: GREEN, PLASTIC, MSOP-10
文件页数: 23/48页
文件大小: 1447K
代理商: TPS54240QDGQRQ1
SLVSAQ4A
– DECEMBER 2010 – REVISED APRIL 2011
THERMAL INFORMATION
TPS54240-Q1
THERMAL METRIC(1)(2)
DGQ
UNITS
10 PINS
θJA
Junction-to-ambient thermal resistance (standard board)
62.5
θJA
Junction-to-ambient thermal resistance (custom board)(3)
57
θJCtop
Junction-to-case (top) thermal resistance
83
θJB
Junction-to-board thermal resistance
28
°C/W
ψJT
Junction-to-top characterization parameter
1.7
ψJB
Junction-to-board characterization parameter
20.1
θJCbot
Junction-to-case (bottom) thermal resistance
21
(1)
For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
(2)
Power rating at a specific ambient temperature TA should be determined with a junction temperature of 150°C. This is the point where
distortion starts to substantially increase. See power dissipation estimate in application section of this data sheet for more information.
(3)
Test boards conditions:
(a) 3 inches x 3 inches, 2 layers, thickness: 0.062 inch
(b) 2 oz. copper traces located on the top of the PCB
(c) 2 oz. copper ground plane, bottom layer
(d) 6 thermal vias (13mil) located under the device package
ELECTRICAL CHARACTERISTICS
TJ = –40°C to 150°C, VIN = 3.5 to 42V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY VOLTAGE (VIN PIN)
Operating input voltage
3.5
42
V
Internal undervoltage lockout
No voltage hysteresis, rising and falling
2.5
V
threshold
Shutdown supply current
EN = 0 V, 25
°C, 3.5 V ≤ VIN ≤ 42 V
1.3
4
μA
Operating : nonswitching supply
VSENSE = 0.83 V, VIN = 12 V, 25
°C
138
200
current
ENABLE AND UVLO (EN PIN)
Enable threshold voltage
No voltage hysteresis, rising and falling, 25
°C
1.15
1.25
1.36
V
Enable threshold +50 mV
–3.8
Input current
μA
Enable threshold
–50 mV
–0.9
Hysteresis current
–2.9
μA
VOLTAGE REFERENCE
TJ = 25°C
0.792
0.8
0.808
Voltage reference
V
0.784
0.8
0.816
HIGH-SIDE MOSFET
VIN = 3.5 V, BOOT-PH = 3 V
300
On-resistance
m
VIN = 12 V, BOOT-PH = 6 V
200
410
ERROR AMPLIFIER
Input current
50
nA
Error amplifier transconductance (gM) –2 μA < ICOMP < 2 μA, VCOMP = 1 V
310
μMhos
–2 μA < ICOMP < 2 μA, VCOMP = 1 V,
Error amplifier transconductance (gM)
70
μMhos
during slow start
VVSENSE = 0.4 V
Error amplifier dc gain
VVSENSE = 0.8 V
10,000
V/V
Error amplifier bandwidth
2700
kHz
Error amplifier source/sink
V(COMP) = 1 V, 100 mV overdrive
±27
μA
COMP to switch current
10.5
A/V
transconductance
CURRENT LIMIT
Current limit threshold
VIN = 12 V, TJ = 25°C
3.5
6.1
A
Copyright
2010–2011, Texas Instruments Incorporated
3
相关PDF资料
PDF描述
TPS54260DGQR SWITCHING REGULATOR, 2500 kHz SWITCHING FREQ-MAX, PDSO10
TPS54260QDGQRQ1 2.5 A SWITCHING REGULATOR, 2500 kHz SWITCHING FREQ-MAX, PDSO10
TPS5430MDDAREPG4 8.5 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8
TPS54310MPWPREP 6 A SWITCHING REGULATOR, 775 kHz SWITCHING FREQ-MAX, PDSO20
TPS54310PWPRG4 6 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO20
相关代理商/技术参数
参数描述
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