MAX8614BATD/V View Datasheet(PDF) - Maxim Integrated

Part Name

Description

Manufacturer

MAX8614BATD/V

Dual-Output (+ and -) DC-DC Converters for CCD

Maxim Integrated 

Click here for production status of specific part numbers.

MAX8614A/MAX8614B

General Description

The MAX8614A/MAX8614B dual-output step-up DC-DC

converters generate both a positive and negative

supply voltage that are each independently regulated.

The positive output delivers up to 50mA while the inverter

supplies up to 100mA with input voltages between 2.7V

and 5.5V. The MAX8614A/MAX8614B are ideal for

powering CCD imaging devices and displays in digital

cameras and other portable equipment.

The MAX8614A/MAX8614B generate an adjustable

positive output voltage up to +24V and a negative

output down to 16V below the input voltage.

The MAX8614B has a higher current limit than the

MAX8614A. Both devices operate at a fixed 1MHz

frequency to ease noise filtering in sensitive applications

and to reduce external component size.

Additional features include pin-selectable power-on

sequencing for use with a wide variety of CCDs, True

Shutdown™, overload protection, fault flag, and internal

soft-start with controlled inrush current.

The MAX8614A/MAX8614B are available in a space

saving 3mm x 3mm, 14-pin TDFN package and are speci-

fied over the -40°C to +85°C/125°C extended temperature

ranges.

Applications

●● CCD Bias Supplies and OLED Displays

●● Digital Cameras

●● Camcorders and Portable Multimedia

●● PDAs and Smartphones

True Shutdown is a trademark of Maxim Integrated Products, Inc.

Pin Configuration

TOP VIEW

14 13 12 11 10 9 8

MAX8614A

MAX8614B

+

1234567

TDFN

EVALUATION KIT AVAILABLE

Dual-Output (+ and -) DC-DC

Converters for CCD

Features

●● Dual Output Voltages (+ and -)

●● Adjustable Up to +24V and Down to -10V at 5.5VIN

●● Output Short/Overload Protection

●● True Shutdown on Both Outputs

●● Controlled Inrush Current During Soft-Start

●● Selectable Power-On Sequencing

●● Up to 90% Efficiency

●● 1µA Shutdown Current

●● 1MHz Fixed-Frequency PWM Operation

●● Fault-Condition Flag

●● Thermal Shutdown

●● Small, 3mm x 3mm, 14-Pin TDFN Package

Ordering Information

PART

TEMP PIN-

RANGE PACKAGE

TOP

MARK

ILIM

BST/

INV

MAX8614AETD+

-40°C to

+85°C

14 TDFN

ABG

0.44/

0.33

MAX8614BETD+

-40°C to

+85°C

14 TDFN

ABH

0.8/

0.75

MAX8614BATD/V+

-40°C to

+125°C

14 TDFN

ABT

0.8/

0.75

+Denotes a lead(Pb)-free/RoHS-compliant package.

/V denotes an automotive qualified part that conforms to AEC-Q100.

Typical Operating Circuit

INPUT

(2.7V TO 5.5V)

AVCC

VCC

ONINV

LXN

ONBST

AVCC

MAX8614A

MAX8614B

FBN

REF

PVP

SEQ

LXP

FLT

GND PGND

FBP

VINV

-7.5V

REF

VBST

+15V

19-4014; Rev 3; 12/19

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