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TPS62052DGSRG4 Datasheet(PDF) 5 Page - Texas Instruments

Part # TPS62052DGSRG4
Description  800-mA SYNCHRONOUS STEP-DOWN CONVERTER
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS62052DGSRG4 Datasheet(HTML) 5 Page - Texas Instruments

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1
2
3
4
5
10
9
8
7
6
VIN
LBO
GND
PG
FB
PGND
SW
EN
SYNC
LBI
DGS PACKAGE
(TOP VIEW)
TPS62052, TPS62054
TPS62056, TPS62050, TPS62051
www.ti.com
SLVS432E – SEPTEMBER 2002 – REVISED JUNE 2011
PIN ASSIGNMENTS
Pin Functions
PIN
I/O
DESCRIPTION
NAME
NO.
EN
8
I
Enable. A logic high enables the converter, logic low forces the device into shutdown mode, reducing the supply
current to less than 2 µA.
FB
5
I
Feedback pin for the fixed output voltage option. For the adjustable version, an external resistive divider is
connected to this pin. The internal voltage divider is disabled for the adjustable version.
GND
3
I
Ground
LBO
2
O
Open drain low battery output. Logic low signal indicates a low battery voltage.
LBI
6
I
Low battery input
PG
4
O
Power good comparator output. This is an open-drain output. A pullup resistor should be connected between PG
and VOUT. The output floats when the output voltage is greater than 95% of the nominal value.
PGND
10
I
Power ground. Connect all power grounds to this pin.
SW
9
O
Connect the inductor to this pin. This pin is the switch pin and connected to the drain of the internal power
MOSFETS.
SYNC
7
I
Input for synchronization to the external clock signal. This input can be connected to an external clock or pulled to
GND or VI. When an external clock signal is applied, the device synchronizes to this external clock and the device
operates in fixed PWM mode. When the pin is pulled to either GND or VI, the internal oscillator is used and the
logic level determines if the device operates in fixed PWM or PWM/PFM mode.SYNC = HIGH: Low-noise mode
enabled, fixed frequency PWM operation is forcedSYNC = LOW (GND): Power-save mode enabled, PFM/PWM
mode enabled.
VIN
1
I
Supply voltage input
Copyright © 2002–2011, Texas Instruments Incorporated
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Product Folder Links: TPS62052 TPS62054 TPS62056 TPS62050 TPS62051


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