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TPS62140A Datasheet(PDF) 7 Page - Texas Instruments

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Part # TPS62140A
Description  3-V to 17-V 2-A Step-Down Converter in 3x3 QFN Package
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS62140A Datasheet(HTML) 7 Page - Texas Instruments

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COUT
VOUT
CIN
L1
VIN
FB
PG
TPS62140
R1
R2
CSS
R3
VIN
AVIN
EN
SS/TR
DEF
FSW
SW
VOS
PG
FB
AGND
PGND
TPS62140, TPS62140A
TPS62141, TPS62142, TPS62143
www.ti.com
SLVSAJ0B – NOVEMBER 2011 – REVISED JUNE 2013
PARAMETER MEASUREMENT INFORMATION
List of Components
REFERENCE
DESCRIPTION
MANUFACTURER
IC
17-V, 2-A step-down converter, QFN
TPS62140RGT, Texas Instruments
L1
2.2-µH, 3.1-A, 0.165 in × 0.165 in
XFL4020-222MEB, Coilcraft
Cin
10-µF, 25-V, ceramic
Standard
Cout
22-µF, 6.3-V, ceramic
Standard
Cs
3300-pF, 25-V, ceramic
R1
Dependent on Vout
R2
Dependent on Vout
R3
100-k
Ω, chip, 0603, 1/16W, 1%
Standard
Figure 4. Measurement Setup
TYPICAL CHARACTERISTICS
Table of Graphs
DESCRIPTION
FIGURE
Efficiency
vs Output Current, vs Input Voltage
5–16
vs Output current (Load regulation), vs Input Voltage
Output voltage
17, 18
(Line regulation)
vs Input Voltage
19
Switching Frequency
vs Output Current
20
Quiescent Current
vs Input Voltage
21
Shutdown Current
vs Input Voltage
22
Power FET RDS(on)
vs Input Voltage (High-Side, Low-Side)
23, 24
Output Voltage Ripple
vs output Current
25
Maximum Output Current
vs Input Voltage
26
Power Supply Rejection Ratio (PSSR)
vs Frequency
27, 28
PWM-PSM-PWM Mode Transition
29
Load Transient Response
30–32
Waveforms
Start-Up
33, 34
Typical PWM Mode Operation
35
Typical Power Save Mode Operation
36
vs Load Current
37
Maximum Ambient Temperature
vs Power Dissipation
38
Copyright © 2011–2013, Texas Instruments Incorporated
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Product Folder Links: TPS62140 TPS62140A TPS62141 TPS62142 TPS62143


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