Datasheet > ADP5076

ADP5076

更新时间： 2024-01-20 02:48:45

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亚德诺 - ADI		/
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描述
2 A/1.2 A DC-to-DC Switching Regulator with Independent Positive and Negative Outputs

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ADP5076 数据手册

2 A/1.2 A DC-to-DC Switching Regulator with

Independent Positive and Negative Outputs

Data Sheet

ADP5076

The ADP5076 includes a fixed internal or resistor programmable

soft start timer to prevent inrush current at power-up.

FEATURES

Input supply voltage range: 2.85 V to 5.5 V

Generates well regulated, independently resistor

programmable V_POSand V_NEGoutputs

Boost regulator to generate V_POSoutput

Adjustable positive output to 35 V

Other key safety features in the ADP5076 include overcurrent

protection (OCP), overvoltage protection (OVP), thermal

shutdown (TSD), and input undervoltage lockout (UVLO).

The ADP5076 is available in a 20-ball wafer level chip scale

package (WLCSP) and is rated for a −40°C to +125°C junction

temperature range.

Integrated 2.0 A main switch

Inverting regulator to generate V_NEGoutput

Adjustable negative output to −30 V

Integrated 1.20 A main switch

Table 1. Family Models

Boost

Inverter

1.2 MHz or 2.4 MHz switching frequency with optional

external frequency synchronization from 1.0 MHz to

2.6 MHz

Resistor programmable soft start timer

Slew rate control for lower system noise

Individual precision enable and flexible start-up sequence

control for symmetric start, V_POSfirst, or V_NEGfirst

Out of phase operation

Model

Switch (A) Switch (A) Package

ADP5070 1.0

0.6

1.2

0.6

1.2

2.4

0.8

1.2

20-lead LFCSP (4 mm ×

4 mm) and 20-lead TSSOP

20-lead LFCSP (4 mm ×

4 mm) and 20-lead TSSOP

20-ball WLCSP

(1.61 mm × 2.18 mm)

16-lead LFCSP (3 mm ×

3 mm)

16-lead LFCSP (3 mm ×

3 mm)

12-ball WLCSP

(1.61 mm × 2.18 mm)

ADP5071 2.0

ADP5072 1.0

ADP5073 N/A¹

ADP5074 N/A¹

ADP5075 N/A¹

ADP5076 2.0

UVLO, OCP, OVP, and TSD protection

1.61 mm × 2.18 mm, 20-ball WLCSP

−40°C to +125°C junction temperature range

APPLICATIONS

Bipolar amplifiers, ADCs, DACs, and multiplexers

Charge coupled device (CCD) bias supply

Optical module supply

20-ball WLCSP

(1.61 mm × 2.18 mm)

¹N/A means not applicable.

RF power amplifier bias

Time of flight module supply

FUNCTIONAL BLOCK DIAGRAM

GENERAL DESCRIPTION

ADP5076

The ADP5076 is a dual, high performance, dc-to-dc regulator that

generates independently regulated positive and negative rails. The

input voltage range of 2.85 V to 5.5 V supports a wide variety of

applications. The integrated main switch in both regulators enables

generation of an adjustable positive output voltage up to +35 V and

a negative output voltage down to −30 V.

POS

SW1

COMP1

EN1

FT1

FB1

OUT1

OUT2

PVIN

AVIN

PGND

VREF

The ADP5076 operates at a pin selected 1.2 MHz or 2.4 MHz

switching frequency. The ADP5076 can synchronize with an

external oscillator from 1.0 MHz to 2.6 MHz to ease noise

filtering in sensitive applications. Both regulators implement

programmable slew rate control circuitry for the metal-oxide

semiconductor field effect transistor (MOSFET) driver stage to

reduce electromagnetic interference (EMI). Flexible start-up

sequencing is provided with the options of manual enable,

simultaneous mode, positive supply first, and negative supply first.

EN2

FB2

COMP2

FT2

SYNC

SLEW

SEQ

SW2

NEG

AGND

Figure 1.

Rev. A

Document Feedback

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Technical Support

www.analog.com

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与ADP5076相关器件

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ADP5076ACBZ-R7	ADI	获取价格	2 A/1.2 A DC-to-DC Switching Regulator with Independent Positive and Negative Outputs
ADP5076CB-EVALZ	ADI	获取价格	2 A/1.2 A DC-to-DC Switching Regulator with Independent Positive and Negative Outputs
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