TPS54335-2A Datasheet, PDF (3/39 Pages) Texas Instruments – TPS54335-2A 4.5-V to 28-V Input, 3-A Output, Synchronous Step-Down DC-DC Converter

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5 Pin Configuration and Functions
DRC Package
10-Pin VSON With Exposed Thermal Pad
Top View
VIN 1
NC 2
PH 3
GND 4
GND 5
Exposed
Thermal
Pad
10 RT
9 BOOT
8 EN
7 COMP
6 VSENSE
TPS54335-2A
SLUSCK3 – JULY 2016
PIN
NAME
BOOT
COMP
EN
NC
GND
GND
PH
RT
VIN
VSENSE
Thermal pad
VSON
9
7
8
2
4
5
3
10
1
6
Pin Functions
I/O
DESCRIPTION
A bootstrap capacitor is required between the BOOT and PH pins. If the voltage on this
O capacitor is below the minimum required by the output device, the output is forced to switch
off until the capacitor is refreshed.
O
This pin is the error-amplifier output and the input to the output switch-current comparator.
Connect frequency compensation components to this pin.
I This pin is the enable pin. Float the EN pin to enable.
— No Connect
— Ground
— Ground
O The PH pin is the source of the internal high-side power MOSFET.
O
Connect the RT pin to an external timing resistor to adjust the switching frequency of the
device.
— This pin is the 4.5-V to 28-V input supply voltage.
I This pin is the inverting node of the transconductance (gm) error amplifier.
For proper operation, connect the GND pin to the exposed thermal pad. This thermal pad
— should be connected to any internal PCB ground plane using multiple vias for good thermal
performance.
Copyright © 2016, Texas Instruments Incorporated
Product Folder Links: TPS54335-2A
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