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TPS54062DGKR Datasheet(PDF) 4 Page - Texas Instruments

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No. de pieza TPS54062DGKR
Descripción Electrónicos  4.7-V to 60-V Input, 50-mA Synchronous Step-Down Converter With Low IQ
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

TPS54062DGKR Datasheet(HTML) 4 Page - Texas Instruments

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2
Thermal
Pad (9)
COMP
3
6
1
4
7
8
5
EN
GND
PH
VSENSE
VIN
BOOT
RT/CLK
See appended
Mechanical
Data for
size and shape
1
2
3
4
5
6
7
8
BOOT
VIN
PH
GND
COMP
VSENSE
EN
RT/CLK
4
TPS54062
SLVSAV1D – MAY 2011 – REVISED JULY 2016
www.ti.com
Product Folder Links: TPS54062
Submit Documentation Feedback
Copyright © 2011–2016, Texas Instruments Incorporated
5 Pin Configuration and Functions
MSOP PACKAGE
8 PINS
TOP VIEW
VSON PACKAGE
8 PINS
BOTTOM VIEW
Pin Functions
PIN
I/O
DESCRIPTION
NAME
NUMBER
BOOT
1
O
A bootstrap capacitor is required between BOOT and PH. If the voltage on this capacitor is
below the minimum required by the output device, the output is forced to switch off until the
capacitor is refreshed.
VIN
2
I
Input supply voltage, 4.7 V to 60 V.
EN
3
I
Enable pin, internal pull-up current source. Pull below 1.14 V to disable. Float to enable. Adjust
the input undervoltage lockout with two resistors, see the Enable and Adjusting Undervoltage
Lockout section.
RT/CLK
4
I
Resistor Timing and External Clock. An internal amplifier holds this pin at a fixed voltage when
using an external resistor to ground to set the switching frequency. If the pin is pulled above the
PLL upper threshold, a mode change occurs and the pin becomes a synchronization input. The
internal amplifier is disabled and the pin is a high impedance clock input to the internal PLL. If
clocking edges stop, the internal amplifier is re-enabled and the mode returns to a resistor
frequency programming.
VSENSE
5
I
Inverting input of the transconductance (gm) error amplifier.
COMP
6
O
Error amplifier output, and input to the output switch current comparator. Connect frequency
compensation components to this pin.
GND
7
Ground
PH
8
O
The source of the internal high-side power MOSFET and drain of the internal low side MOSFET
Thermal Pad
9
GND pin must be electrically connected to the exposed pad on the printed circuit board for
proper operation. VSON-8 package only.


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