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TPS62090: TPS62090 Alt. part

Part Number: TPS62090

We using TPS62090 DCDC to step-dow the Input from SMPS (5.0-5.6V 2A) to 3.2V.
We pull up the Freq by 390k ohm to make TPS62090 operate in 1.4MHz mode. EN pin is connected to Vin directly.


In SMPS spec. , Vout max(no load) is 5.6V, and Vout max(2A load) is 5.5V. 
In TPS62090 recommended operating conditions, the Input Voltage is 2.5-6V.
This means we have at least 0.4V margin between SMPS and DCDC.

Due to Long LT, we searching Alt. parts.

 TLV62090RGTR,TPS62095RGTR and TLV62095RGTR are pin-to-pin and have similar features but the Vin is 2.5-5.5V.

Is it ok to use these parts as Alt. of TPS62090RGTR?

PARAMETERS

PROVIDED MPN

 

 

MFR PART NUMBER

TPS62090RGTR

TLV62090RGTR

TPS62095RGTR

TLV62095RGTR

TYPE

adj. 3A Step-Down Converter

adj. 3A Step-Down Converter

adj. 4A Step-Down Converter

adj. 4A Step-Down Converter

Absolute Maximum Voltage

7V

7V

7V

7V

Vin

2.5-6V

2.5-5.5V

2.5-5.5V

2.5-5.5V

Switching frequency

1.4/2.8Mhz
(we using 1.4Mhz with 390k pull-up on FREQ pin)

1.4Mhz

1.4Mhz

1.4Mhz

EN pin

pull down resistor of typically 400kΩ

pull down resistor of typically 400kΩ

pull down resistor of typically 400kΩ

pull-down resistor of 400 kΩ when the EN pin is low.
disconnected when the EN pin is high.

Casing

QFN16

QFN16

QFN16

QFN16

ROHS

Yes

Yes

Yes

Yes