MP8801

– 6.5V, 150mA, LOW-NOISE, LOW-DROPOUT LINEAR REGULATOR

MP8801 Rev. 2.0

MonolithicPower.com

4

7/19/2021

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© 2021 MPS. All Rights Reserved.

PIN FUNCTIONS

Pin #

Name

Description

1

IN

Power source input. The IN pin supplies the internal power to the linear regulator. In is

also the source for the pass transistor. Bypass IN to GND via a 1

μF or greater capacitor.

2

GND

Ground.

3

EN

Enable (EN) input. Pull the EN pin high to turn the regulator on; pull EN low to turn it off.

For automatic start-up, connect the EN and IN pins.

4

FB

Feedback input. Connect a resistive voltage divider between the OUT and FB pins to set

the output voltage (VOUT). The VOUT feedback threshold is 1.222V.

5

OUT

Regulator output. The OUT pin is the output of the linear regulator. Bypass OUT to GND

via a 1

μF or greater capacitor.

ABSOLUTE MAXIMUM RATINGS (2)

IN supply voltage ........................... -0.3V to +7V

FB voltage (VFB)................. -0.3V to VOUT + 0.3V

All other pins.................................. -0.3V to +6V

Continuous power dissipation (TA = 25°C) (3)

………………………………………………...0.56W

Junction temperature ............................... 150°C

Lead temperature .................................... 260°C

Storage temperature ............... -65°C to +150°C

Recommended Operating Conditions (4)

Input voltage .................................. 2.7V to 6.5V

Output voltage ................................ 1.25V to 5V

Load current .......................... 150mA Maximum

Maximum junction temp (TJ) .................... 125°C

Thermal Resistance (5)

θJA

θJC

TSOT23-5..............................220 .... 110 ..°C/W

Notes:

2) Exceeding these ratings may damage the device.

3) The maximum allowable power dissipation is a function of the

maximum junction temperature TJ (MAX), the junction-to-

ambient thermal resistance θ

JA, and the ambient temperature

TA. The maximum allowable continuous power dissipation at

any ambient temperature is calculated by PD (MAX) = (TJ

(MAX) - TA) / θJA. Exceeding the maximum allowable power

dissipation can cause excessive die temperature, and the

regulator may go into thermal shutdown. Internal thermal

shutdown circuitry protects the device from permanent

damage.

4) The device is not guaranteed to function outside of its

operating conditions

5) Measured on JESD51-7, 4-

layer PCB. The value of θ

JA given

is only valid for comparison with other packages and cannot

be used for design purposes. Values were calculated in

accordance with JESD51-7, and were simulated on a

specified

JEDEC

board.

They

do

not

represent

the

performance obtained in actual application.