IC STEP-DOWN SWIFT CONV 10-MSOP

TPS54040DGQ

Manufacturer Part NumberTPS54040DGQ
DescriptionIC STEP-DOWN SWIFT CONV 10-MSOP
ManufacturerTexas Instruments
SeriesSWIFT™, Eco-Mode™
TypeStep-Down (Buck)
TPS54040DGQ datasheet
 


Specifications of TPS54040DGQ

Internal Switch(s)YesSynchronous RectifierNo
Number Of Outputs1Voltage - Output0.8 ~ 39 V
Current - Output500mAFrequency - Switching100kHz ~ 2.5MHz
Voltage - Input3.5 ~ 42 VOperating Temperature-40°C ~ 150°C
Mounting TypeSurface MountPackage / Case10-MSOP Exposed Pad, 10-HMSOP, 10-eMSOP
Mounting StyleSMD/SMTDuty Cycle (max)98 %
Input / Supply Voltage (max)42 VInput / Supply Voltage (min)3.5 V
Maximum Operating Temperature+ 150 CMinimum Operating Temperature- 40 C
Output Current0.5 AOutput Voltage0.8 V to 39 V
Supply Current116 uASwitching Frequency2500 KHz
Dc To Dc Converter TypeStep DownPin Count10
Input Voltage42VSwitching Freq2500KHz
Package TypeHTSSOP EPOutput TypeAdjustable
Switching RegulatorYesMountingSurface Mount
Input Voltage (min)3.5VOperating Temperature ClassificationAutomotive
Lead Free Status / RoHS StatusLead free / RoHS CompliantPower - Output-
Other names296-24228-5  
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TPS54040
SLVS918 – MARCH
2009...................................................................................................................................................................................................
ELECTRICAL CHARACTERISTICS (continued)
T
= –40°C to 150°C, VIN = 3.5 to 42V (unless otherwise noted)
J
PARAMETER
TIMING RESISTOR AND EXTERNAL CLOCK (RT/CLK PIN)
Switching Frequency Range using
RT mode
f
Switching frequency
SW
Switching Frequency Range using
CLK mode
Minimum CLK input pulse width
RT/CLK high threshold
RT/CLK low threshold
RT/CLK falling edge to PH rising
edge delay
PLL lock in time
SLOW START AND TRACKING (SS/TR)
Charge current
SS/TR-to-VSENSE matching
SS/TR-to-reference crossover
SS/TR discharge current (overload)
SS/TR discharge voltage
POWER GOOD (PWRGD PIN)
V
VSENSE threshold
VSENSE
Hysteresis
Output high leakage
On resistance
Minimum VIN for defined output
4
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TEST CONDITIONS
R
= 200 kΩ
T
Measured at 500 kHz with RT resistor in series
Measured at 500 kHz
V
= 0.4 V
SS/TR
V
= 0.4 V
SS/TR
98% nominal
VSENSE = 0 V, V(SS/TR) = 0.4 V
VSENSE = 0 V
VSENSE falling
VSENSE rising
VSENSE rising
VSENSE falling
VSENSE falling
VSENSE = VREF, V(PWRGD) = 5.5 V, 25°C
I(PWRGD) = 3 mA, VSENSE < 0.79 V
V(PWRGD) < 0.5 V, II(PWRGD) = 100 A
Product Folder Link(s):
TPS54040
www.ti.com
MIN
TYP
MAX
UNIT
100
2500
kHz
450
581
720
kHz
300
2200
kHz
40
ns
1.9
2.2
V
0.5
0.7
V
60
ns
100
s
2
A
45
mV
1.0
V
112
A
54
mV
92%
94%
109%
107%
2%
10
nA
50
0.95
1.5
V
Copyright © 2009, Texas Instruments Incorporated