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| 型号： | ADP2303ARDZ-R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/28页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 3A 8SOIC |
| 标准包装： | 1 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 可调至 0.8V |
| 输入电压： | 3 V ~ 20 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 700kHz |
| 电流 - 输出： | 3A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm Width）裸露焊盘 |
| 包装： | 标准包装 |
| 供应商设备封装： | 8-SOIC-EP |
| 其它名称： | ADP2303ARDZ-R7DKR |
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2 A/3 A, 20 V, 700 kHz,
Nonsynchronous Step-Down Regulators
Data Sheet
FEATURES
TYPICAL APPLICATIONS CIRCUIT
Wide input voltage range: 3.0 V to 20 V
V IN
VIN
BST
Maximum load current
2 A for ADP2302
3 A for ADP2303
±1.5% output accuracy over temperature
Output voltage down to 0.8 V
ON
ADP2302/
ADP2303
PGOOD SW
V OUT
700 kHz switching frequency
Current-mode control architecture
OFF
EN
GND
FB
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
APPLICATIONS
Intermediate power rail conversion
100
90
80
70
60
Figure 1. Typical Application Circuit
DC-to-DC point of load applications
Communications and networking
Industrial and instrumentation
50
INDUCTOR: VLF10040T - 4R7N5R4
DIODE: SSB43L
V OUT = 3.3V
V OUT = 5.0V
Healthcare and medical
40
0
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.
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 registered trademarks are the property of their respective owners.
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 o C
to +125 o C junction temperature range.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ?2010–2012 Analog Devices, Inc. All rights reserved.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADP2303-EVALZ | 功能描述:EVAL BOARD FOR ADP2303 RoHS:是 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| ADP2303-EVALZ | 制造商:Analog Devices 功能描述:ADP2303, DC TO DC REGULATOR, STEP DOWN, |
| ADP2311-1-EVALZ | 功能描述:ADP2311 - DC/DC, Step Down 2, Non-Isolated Outputs Evaluation Board 制造商:analog devices inc. 系列:- 零件状态:有效 主要用途:DC/DC，步降 输出和类型:2，非隔离 功率 - 输出:- 电压 - 输出:1.2V，3.3V 电流 - 输出:1A，1A 电压 - 输入:4.5 V ~ 18 V 稳压器拓扑:降压 频率 - 开关:300kHz 板类型:完全填充 所含物品:板 使用的 IC/零件:ADP2311 标准包装:1 |
| ADP2311ACPZ-1-R7 | 功能描述:Buck Switching Regulator IC Positive Adjustable 0.6V 2 Output 1A 24-WFQFN Exposed Pad, CSP 制造商:analog devices inc. 系列:- 包装:剪切带（CT） 零件状态:有效 功能:降压 输出配置:正 拓扑:降压 输出类型:可调式 输出数:2 电压 - 输入（最小值）:4.5V 电压 - 输入（最大值）:18V 电压 - 输出（最小值/固定）:0.6V 电压 - 输出（最大值）:18V 电流 - 输出:1A 频率 - 开关:300kHz 同步整流器:是 工作温度:-40°C ~ 125°C （TJ） 安装类型:表面贴装 封装/外壳:24-WFQFN 裸露焊盘，CSP 供应商器件封装:24-LFCSP-WQ（4x4） 标准包装:1 |
| ADP2311ACPZ-2-R7 | 功能描述:Buck Switching Regulator IC Positive Adjustable 0.6V 2 Output 1A 24-WFQFN Exposed Pad, CSP 制造商:analog devices inc. 系列:- 包装:剪切带（CT） 零件状态:有效 功能:降压 输出配置:正 拓扑:降压 输出类型:可调式 输出数:2 电压 - 输入（最小值）:4.5V 电压 - 输入（最大值）:18V 电压 - 输出（最小值/固定）:0.6V 电压 - 输出（最大值）:18V 电流 - 输出:1A 频率 - 开关:300kHz 同步整流器:是 工作温度:-40°C ~ 125°C （TJ） 安装类型:表面贴装 封装/外壳:24-WFQFN 裸露焊盘，CSP 供应商器件封装:24-LFCSP-WQ（4x4） 标准包装:1 |
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