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TPL710 Series

200 mA output,

1 µA Ultra-Low Quiescent Current LDO

Application and Implementation

Application Information

The TPL710 devices are a series of 200 mA high PSRR, low-dropout linear regulator with low quiescent current.

The following application schematic shows a typical usage of the TPL710 series.

Typical Application

Figure 11 shows the typical application schematic of the TPL710 series.

VIN

VOUT

EN

(1)

GND

Input

Off On

TPL710

Series

COUT

Output

CIN

(1) EN pin is only available in the 4-/5-pin package

Figure 11. TPL710 Series Application Schematic

Input Capacitor and Output Capacitor

3PEAK recommends adding a 1 μF or greater capacitor with a 0.1 μF bypass capacitor in parallel at IN pin to

keep the input voltage stable. The voltage rating of the capacitors must be greater than the maximum input

voltage.

To ensure loop stability, the TPL710 series requires an output capacitor with a minimum effective capacitance

value of 1 μF. 3PEAK recommends selecting an X5R- or X7R-type 2.2 μF or larger ceramic capacitor with low

ESR over temperature.

Both input capacitors and output capacitors must be placed as close to the device pins as possible.

Power Dissipation

During normal operation, LDO junction temperature should not exceed 125°C. Using the below equations to

calculate the power dissipation and estimate the junction temperature.

The power dissipation can be calculated using Equation 1.

(

)

D

IN

OUT

OUT

IN

GND

P

V

V

I

V

I

=

−



+



(1)

The junction temperature can be estimated using Equation 2. θJA is the junction-to-ambient thermal resistance

(See Section Thermal Information).

J

A

D

JA

T

T

P



=

+ 

(2)

NOTE

Information in the following applications sections is not part of the 3PEAK’s component specification and

3PEAK does not warrant its accuracy or completeness. 3PEAK’s customers are responsible for determining

suitability of components for their purposes. Customers should validate and test their design implementation

to confirm system functionality.