MAX77801 datasheet(8/25 Pages) MAXIM

Part #	MAX77801

Description	Flexibility Supports Various Designs

Download	25 Pages

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Manufacturer	MAXIM [Maxim Integrated Products]

Direct Link	https://www.maximintegrated.com/en.html

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8 / 25 page

NAME

FUNCTION

A1

VSYS

System (Battery) Voltage Input. Bypass to GND with a 1µF capacitor.

A2

DVS

Dynamic Voltage Scaling Logic Input. If not in use, then it must be connected to GND.

A3, B3

GND

Ground. Star-Ground Connection to System GND

A4

SDA

I2C Data I/O (High Impedance in Off State). A 1.5kΩ~2.2kΩ of pullup resistor to VIO is required.

A5

SCL

I2C Clock Input (High Impedance in Off State). A 1.5kΩ~2.2kΩ of pullup resistor to VIO is required.

B1

FB_BB

Buck-Boost Output Voltage Feedback

B2

POK

Power OK. Open-drain output asserted after buck-boost output reaches to 90% of output voltage.

Polarity is factory selectable option. Active high by default.

B4

EN

Active-High, Buck-Boost External Enable Input. An 800kΩ internal pulldown resistance to the GND.

If this pin is not used, leave it floating.

B5

VIO

I2C Supply Voltage Input. Bypass to GND with a 0.1µF capacitor. If not in use, connect to GND.

C1, D1

OUTBB

Buck-Boost Output

C2, D2

LXBB2

Buck-Boost Switching Node 2

C3, D3

PGNDBB

Buck-Boost Power Ground. Star-ground connection to system GND.

C4, D4

LXBB1

Buck-Boost Switching Node 1

C5, D5

INBB

Buck-Boost Input. Bypass to PGNDBB with a 10µF capacitor.

20-BUMP WLP (5 x 4), 0.4mm Pitch

TOP VIEW

(BUMP SIDE DOWN)

VIO

LXBB1

PGNDBB

INBB

PGNDBB

LXBB2

POK

FB_BB

LXBB1

LXBB2

INBB

OUTBB

GND

1

2

3

4

5

EN

SCL

DVS

VSYS

GND

SDA

A

B

C

D

+

MAX77801

High-Efficiency Buck-Boost Regulator

www.maximintegrated.com

Maxim Integrated │ 8

Pin Configuration

Pin Description

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