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| 型号： | ADP2504ACPZ-4.5-R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK BST SYNC 1A 10LFCSP |
| 产品变化通告： | Reliability Change 27/Apr/2012 |
| 标准包装： | 1 |
| 类型： | 降压（降压），升压（升压） |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 4.5V |
| 输入电压： | 2.3 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 2.5MHz |
| 电流 - 输出： | 1A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN 裸露焊盘，CSP |
| 包装： | 标准包装 |
| 供应商设备封装： | 10-LFCSP-WD（3x3） |
| 其它名称： | ADP2504ACPZ-4.5-R7DKR |
600 mA/1000 mA, 2.5 MHz Buck-Boost
DC-to-DC Converters
Data Sheet
FEATURES
1 mm height profile
Compact PCB footprint
Seamless transition between modes
38 μA typical quiescent current
2.5 MHz operation enables 1.5 μH inductor
Input voltage: 2.3 V to 5.5 V
Fixed output voltage: 2.8 V to 5.0 V
Adjustable model output voltage range: 2.8 V to 5.5 V
600 mA (ADP2503) and 1000 mA (ADP2504) output options
Boost converter configuration with load disconnect
SYNC pin with three different modes
Power save mode (PSM) for improved light load efficiency
Forced fixed frequency operation mode
Synchronization with external clock
Internal compensation
Soft start
Enable/shutdown logic input
Overtemperature protection
Short-circuit protection
Undervoltage lockout protection
Small 10-lead 3 mm × 3 mm LFCSP (QFN) package
Supported by ADIsimPower ? design tool
APPLICATIONS
Wireless handsets
Digital cameras/portable audio players
Miniature hard disk power supplies
USB powered devices
GENERAL DESCRIPTION
The ADP2503/ADP2504 are high efficiency, low quiescent current
step-up/step-down dc-to-dc converters that can operate at input
voltages greater than, less than, or equal to the regulated output
voltage. The power switches and synchronous rectifiers are
internal to minimize external part count. At high load currents,
the ADP2503/ADP2504 use a current-mode, fixed frequency
pulse-width modulation (PWM) control scheme for optimal
stability and transient response. To ensure the longest battery life
in portable applications, the ADP2503/ADP2504 have an optional
power save mode that reduces the switching frequency under
light load conditions. For wireless and other low noise applica-
tions where variable frequency power save mode may cause
interference, the logic control input sync forces fixed frequency
PWM operation under all load conditions.
The ADP2503/ADP2504 can run from input voltages between
2.3 V and 5.5 V, allowing single lithium or lithium polymer cell,
multiple alkaline or NiMH cells, PCMCIA, USB, and other stan-
dard power sources. The ADP2503/ADP2504 have fixed output
options, or using the adjustable model, the output voltage can
be programmed through an external resistor divider. Compensa-
tion is internal to minimize the number of external components.
During logic-controlled shutdown, the input is disconnected
from the output and draws less than 1 μA from the input source.
Operating as boost converters, the ADP2503/ADP2504 feature
a true load disconnect function that isolates the load from the
power source. Other key features include undervoltage lockout
to prevent deep battery discharge, and soft start to prevent input
current overshoot at startup.
TYPICAL APPLICATION CIRCUIT
1.5μH
SW1
SW2
V IN
ADP2503/ADP2504
V OUT
2.3V TO 5.5V
10μF
PVIN
VIN
VOUT
FB
2.8V TO 5V
22μF
SYNC 1
EN
ON
OFF
AGND PGND
1 ALLOWS
THE ADP2503/ADP2504 TO OPERATE IN
THREE DIFFERENT MODES.
Figure 1.
Rev. C
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ?2008–2013 Analog Devices, Inc. All rights reserved.
Trademarks and registered trademarks are the property of their respective owners.
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相关代理商/技术参数 |
参数描述 |
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| ADP2504ACPZ-5.0-R7 | 功能描述:IC REG BUCK BST SYNC 5V 10LFCSP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 产品培训模块:High Efficiency Current Mode Switching Regulators CMOS LDO Regulators 特色产品:BD91x Series Step-Down Regulators 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:两者兼有 输出数:2 输出电压:3.3V，0.8 V ~ 2.5 V 输入电压:4.5 V ~ 5.5 V PWM 型:电流模式 频率 - 开关:1MHz 电流 - 输出:1.5A 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:20-VFQFN 裸露焊盘 包装:带卷 (TR) 供应商设备封装:VQFN020V4040 产品目录页面:1373 (CN2011-ZH PDF) 其它名称:BD9152MUV-E2TR |
| ADP2504ACPZ-5.0-R71 | 制造商:AD 制造商全称:Analog Devices 功能描述:600 mA/1000 mA, 2.5 MHz Buck-Boost DC-to-DC Converter |
| ADP2504ACPZ-R7 | 功能描述:IC REG BUCK BST SYNC ADJ 10LFCSP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 产品培训模块:High Efficiency Current Mode Switching Regulators CMOS LDO Regulators 特色产品:BD91x Series Step-Down Regulators 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:两者兼有 输出数:2 输出电压:3.3V，0.8 V ~ 2.5 V 输入电压:4.5 V ~ 5.5 V PWM 型:电流模式 频率 - 开关:1MHz 电流 - 输出:1.5A 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:20-VFQFN 裸露焊盘 包装:带卷 (TR) 供应商设备封装:VQFN020V4040 产品目录页面:1373 (CN2011-ZH PDF) 其它名称:BD9152MUV-E2TR |
| ADP2504-BL1-EVZ | 功能描述:BOARD EVALUATION FOR ADP2504 RoHS:是 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:* 标准包装:1 系列:- 主要目的:DC/DC，步降 输出及类型:1，非隔离 功率 - 输出:- 输出电压:3.3V 电流 - 输出:3A 输入电压:4.5 V ~ 28 V 稳压器拓扑结构:降压 频率 - 开关:250kHz 板类型:完全填充 已供物品:板 已用 IC / 零件:L7981 其它名称:497-12113STEVAL-ISA094V1-ND |
| ADP2504CPZ-REDYKIT | 功能描述:READYKIT 2.8/5.0 ADP2504 RoHS:是 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:Redykit™ 标准包装:1 系列:- 主要目的:DC/DC，步降 输出及类型:1，非隔离 功率 - 输出:- 输出电压:3.3V 电流 - 输出:3A 输入电压:4.5 V ~ 28 V 稳压器拓扑结构:降压 频率 - 开关:250kHz 板类型:完全填充 已供物品:板 已用 IC / 零件:L7981 其它名称:497-12113STEVAL-ISA094V1-ND |
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