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TPS43061RTET Datasheet(PDF) 2 Page - Texas Instruments

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No. de pieza TPS43061RTET
Descripción Electrónicos  Low Quiescent Current Synchronous Boost DC-DC Controller with Wide VIN Range
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

TPS43061RTET Datasheet(HTML) 2 Page - Texas Instruments

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PowerPAD
(17)
16
FB
COMP
SS
RT/CLK
PGND
VCC
BOOT
SW
15
14
13
5
6
7
8
1
2
3
4
12
11
10
9
TPS43060
TPS43061
SLVSBP4A – DECEMBER 2012 – REVISED DECEMBER 2012
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
DEVICE INFORMATION
Table 1. Ordering Information (1)
TJ
PACKAGE
PART NUMBER(2)
-40
˚C to 150˚C
QFN-16
TPS43060RTE
-40
˚C to 150˚C
QFN-16
TPS43061RTE
(1)
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
(2)
The RTE package is available in large and small reel packaging. Add an R suffix to the device type (TPS43061RTER) for the large reel,
or T (TPS43061RTET) for the small reel.
QFN-16 PACKAGE
(TOP VIEW)
PIN FUNCTIONS
PIN
DESCRIPTION
NAME
NO.
Resistor Timing and External Clock. An external resistor from this pin to the AGND pin programs the
RT/CLK
1
switching frequency between 50 kHz and 1MHz. Driving the pin with an external clock between 300
kHz to 1 MHz will synchronize the switching frequency to the external clock.
SS
2
Soft-start programming pin. A capacitor between the SS pin and AGND pin sets soft-start time.
Output of the internal transconductance error amplifier. The feedback loop compensation network is
COMP
3
connected from this pin to AGND.
Error amplifier input and feedback pin for voltage regulation. Connect this pin to the center tap of a
FB
4
resistor divider to set the output voltage.
Inductor current sense comparator inverting input pin. This pin is normally connected to the inductor
ISNS-
5
side of the current sense resistor.
Inductor current sense comparator non-inverting input pin. This pin is normally connected to the VIN
ISNS+
6
side of the current sense resistor.
The input supply pin to the IC. Connect VIN to a supply voltage between 4.5 V and 38 V. It is
VIN
7
acceptable for the voltage on the VIN pin to be different from the boost power stage input, ISNS+ and
ISNS- pins.
Low side gate driver output. Connect this pin to the gate of the low side N-channel MOSFET. When
LDRV
8
VIN bias is removed, an internal 200 k
Ω resistor pulls LDRV to PGND.
Power ground of the IC. Connect this pin to the source of the low-side MOSFET. PGND should be
PGND
9
connected to AGND via a single point on printed circuit board.
2
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Copyright © 2012, Texas Instruments Incorporated
Product Folder Links: TPS43060 TPS43061


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