Datasheet > ADP2303ARDZ-2.5

ADP2303ARDZ-2.5

更新时间： 2024-11-23 12:27:23

品牌	Logo	应用领域
亚德诺 - ADI		稳压器
页数	文件大小	规格书
28页	984K
描述
2 A/3 A, 20 V, 700 kHz, Nonsynchronous Step-Down Regulators

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ADP2303ARDZ-2.5 数据手册

2 A/3 A, 20 V, 700 kHz,

Nonsynchronous Step-Down Regulators

Data Sheet

ADP2302/ADP2303

FEATURES

TYPICAL APPLICATIONS CIRCUIT

Wide input voltage range: 3.0 V to 20 V

Maximum load current

2 A for ADP2302

VIN

BST

ADP2302/

ADP2303

OUT

3 A for ADP2303

PGOOD

1.ꢀ5 output accuracy over temperature

Output voltage down to 0.8 V

700 kHz switching frequency

Current-mode control architecture

Automatic PFM/PWM mode

Precision enable pin with hysteresis

Integrated high-side MOSFET

Integrated bootstrap diode

Internal compensation and soft start

Power-good output

Undervoltage lockout (UVLO)

Overcurrent protection (OCP)

Thermal shutdown (TSD)

8-lead SOIC package with exposed paddle

Supported by ADIsimPower™ design tool

OFF

GND

Figure 1. Typical Application Circuit

100

APPLICATIONS

Intermediate power rail conversion

DC-to-DC point of load applications

Communications and networking

Industrial and instrumentation

Healthcare and medical

= 3.3V

= 5.0V

OUT

INDUCTOR: VLF10040T

DIODE: SSB43L

4R7N5R4

0.5

1.0

1.5

2.0

2.5

3.0

Consumer

OUTPUT CURRENT (A)

Figure 2. ADP2303 Efficiency vs. Output Current at V_IN= 12 V

GENERAL DESCRIPTION

The ADP2302/ADP2303 are fixed frequency, current-mode

control, step-down, dc-to-dc regulators with an integrated

power MOSFET. The ADP2302/ADP2303 can run from an

input voltage of 3.0 V to 20 V, which makes them suitable for a

wide range of applications. The output voltage of the ADP2302/

ADP2303 can be down to 0.8 V for the adjustable version, while

the fixed output version is available in preset output voltage

options of 5.0 V, 3.3 V, and 2.5 V. The 700 kHz operating

frequency allows small inductor and ceramic capacitors to be

used, providing a compact solution. Current mode control

provides fast and stable line and load transient performance.

The ADP2302/ADP2303 have integrated soft start circuitry to

prevent a large inrush current at power-up. The power-good

signal can be used to sequence devices that have an enable input.

The precision enable threshold voltage allows the part to be

easily sequenced from other input/output supplies. Other key

features include undervoltage lockout (UVLO), overvoltage

protection (OVP), thermal shutdown (TSD), and overcurrent

protection (OCP).

The ADP2302/ADP2303 devices are available in the 8-lead,

SOIC package with exposed paddle and are rated for the −40^oC

to +125^oC junction temperature range.

Rev. A

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

www.analog.com

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ADP2303ARDZ-2.5 替代型号

型号	品牌	替代类型	描述	数据表
ADP2303ARDZ	ADI	完全替代	2 A/3 A, 20 V, 700 kHz, Nonsynchronous Step-Down Regulators
ADP2303ARDZ-5.0	ADI	功能相似	2 A/3 A, 20 V, 700 kHz, Nonsynchronous Step-Down Regulators
ADP2303ARDZ-3.3	ADI	功能相似	2 A/3 A, 20 V, 700 kHz, Nonsynchronous Step-Down Regulators

与ADP2303ARDZ-2.5相关器件

型号	品牌	获取价格	描述	数据表
ADP2303ARDZ-2.5-R7	ADI	获取价格	2 A/3 A, 20 V, 700 kHz, Nonsynchronous Step-Down Regulators
ADP2303ARDZ-3.3	ADI	获取价格	2 A/3 A, 20 V, 700 kHz, Nonsynchronous Step-Down Regulators
ADP2303ARDZ-3.3-R7	ADI	获取价格	2 A/3 A, 20 V, 700 kHz, Nonsynchronous Step-Down Regulators
ADP2303ARDZ-5.0	ADI	获取价格	2 A/3 A, 20 V, 700 kHz, Nonsynchronous Step-Down Regulators
ADP2303ARDZ-5.0-R7	ADI	获取价格	2 A/3 A, 20 V, 700 kHz, Nonsynchronous Step-Down Regulators
ADP2303ARDZ-R7	ADI	获取价格	2 A/3 A, 20 V, 700 kHz, Nonsynchronous Step-Down Regulators
ADP2303-EVALZ	ADI	获取价格	2 A/3 A, 20 V, 700 kHz, Nonsynchronous Step-Down Regulators
ADP2311	ADI	获取价格	Dual 1 A, 18 V, Synchronous Step-Down Regulator with Fail-Safe Voltage Monitoring
ADP2311-1-EVALZ	ADI	获取价格	Dual 1 A, 18 V, Synchronous Step-Down Regulator with Fail-Safe Voltage Monitoring
ADP2311ACPZ-1-R7	ADI	获取价格	Dual 1 A, 18 V, Synchronous Step-Down Regulator with Fail-Safe Voltage Monitoring

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