- 您现在的位置：买卖IC网 > PDF目录20698 > ADP2140ACPZ3325R7 (Analog Devices Inc)IC REG DL BCK/LINEAR 10LFCSP PDF资料下载
参数资料
| 型号： | ADP2140ACPZ3325R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/32页 |
| 文件大小： | 2731K |
| 描述： | IC REG DL BCK/LINEAR 10LFCSP |
| 标准包装： | 1 |
| 拓扑： | 降压（降压）同步（1），线性（LDO）（1） |
| 功能： | 任何功能 |
| 输出数： | 2 |
| 频率 - 开关： | 3MHz |
| 电压/电流 - 输出 1： | 3.3V，600mA |
| 电压/电流 - 输出 2： | 2.5V，300mA |
| 带 LED 驱动器： | 无 |
| 带监控器： | 无 |
| 带序列发生器： | 是 |
| 电源电压： | 1.65 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN 裸露焊盘，CSP |
| 供应商设备封装： | 10-LFCSP-WD（3x3） |
| 包装： | 标准包装 |
| 其它名称： | ADP2140ACPZ3325R7DKR |
当前第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页
3 MHz, 600 mA, Low Quiescent Current
Buck with 300 mA LDO Regulator
Data Sheet
ADP2140
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 registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ?0102012 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
FEATURES
Input voltage range: 2.3 V to 5.5 V
LDO input (VIN2) 1.65 V to 5.5 V
Buck output voltage range: 1.0 V to 3.3 V
LDO output voltage range: 0.8 V to 3.3 V
Buck output current: 600 mA
LDO output current: 300 mA
LDO quiescent current: 22 糀 with zero load
Buck quiescent current: 20 糀 in PSM mode
Low shutdown current: <0.3 糀
Low LDO dropout 110 mV @ 300 mA load
High LDO PSRR
65 dB @ 10 kHz at VOUT2 = 1.2 V
55 dB @ 100 kHz at VOUT2 = 1.2 V
Low noise LDO: 40 糣 rms at VOUT2 = 1.2 V
Initial accuracy: ?%
Current-limit and thermal overload protection
Power-good indicator
Optional enable sequencing
10-lead 0.75 mm ?3 mm ?3 mm LFCSP package
APPLICATIONS
Mobile phones
Personal media players
Digital camera and audio devices
Portable and battery-powered equipment
GENERAL DESCRIPTION
The ADP2140 includes a high efficiency, low quiescent 600 mA
stepdown dc-to-dc converter and a 300 mA LDO packaged in a
small 10-lead 3 mm ?3 mm LFCSP. The total solution requires
only four tiny external components.
The buck regulator uses a proprietary high speed current-mode,
constant frequency, pulse-width modulation (PWM) control
scheme for excellent stability and transient response. To ensure
the longest battery life in portable applications, the ADP2140 has
a power saving variable frequency mode to reduce switching fre-
quency under light loads.
The LDO is a low quiescent current, low dropout linear regulator
designed to operate in a split supply mode with V
IN2 as low as
1.65 V. The low input voltage minimum allows the LDO to be
powered from the output of the buck regulator increasing effi-
ciency and reducing power dissipation. The ADP2140 runs from
input voltages of 2.3 V to 5.5 V allowing single Li+/Li polymer
TYPICAL APPLICATION CIRCUITS
VIN1
PGND
PG
SW
EN1
AGND
EN2
PG
EN1
EN2
FB
VOUT2
10
9
8
7
6
VIN2
1
2
3
4
5
ADP2140
100k&
+
C
IN
10礔
+
C
OUT2
1礔
+
C
OUT
10礔
IN1
= 3.6
V
OUT2
= 1.8V
1礖
V
OUT
= 1.2V
Figure 1. ADP2140 with LDO Connected to VIN1
VIN1
PGND
PG
SW
EN1
AGND
EN2
PG
EN1
EN2
FB
VOUT2
10
9
8
7
6
VIN2
1
2
3
4
5
ADP2140
100k&
+
C
IN
10礔
+
C
OUT2
1礔
+
C
OUT
10礔
IN1
= 3.3
V
OUT2
= 1.2V
1礖
V
OUT
= 1.8V
Figure 2. ADP2140 with LDO Connected to Buck Output
cell, multiple alkaline/NiMH cell, PCMCIA, and other standard
power sources.
ADP2140 includes a power-good pin, soft start, and internal
compensation. Numerous power sequencing options are user-
selectable through two enable inputs. In autosequencing mode,
the highest voltage output enables on the rising edge of EN1.
During logic controlled shutdown, the input disconnects from
the output and draws less than 300 nA from the input source.
Other key features include: undervoltage lockout to prevent deep
battery discharge, soft start to prevent input current overshoot
at startup, and both short-circuit protection and thermal overload
protection circuits to prevent damage in adverse conditions.
When the ADP2140 is used with two 0603 capacitors, one 0402
capacitor, one 0402 resistor, and one 0805 chip inductor, the total
solution size is approximately 90 mm
2
resulting in the smallest foot-
print solution to meet a variety of portable applications.
相关PDF资料 |
PDF描述 |
|---|---|
| HSM36DRYF | CONN EDGECARD 72POS DIP .156 SLD |
| GEC19DRTF | CONN EDGECARD 38POS DIP .100 SLD |
| VE-JNT-CX-F1 | CONVERTER MOD DC/DC 6.5V 75W |
| HMM36DRYF | CONN EDGECARD 72POS DIP .156 SLD |
| ADP2140ACPZ3318R7 | IC REG DL BCK/LINEAR 10LFCSP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADP2140ACPZ3328R7 | 功能描述:IC REG DL BCK/LINEAR 10LFCSP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 + 切换式 系列:- 标准包装:2,500 系列:- 拓扑:降压（降压）同步（3），线性（LDO）（2） 功能:任何功能 输出数:5 频率 - 开关:300kHz 电压/电流 - 输出 1:控制器 电压/电流 - 输出 2:控制器 电压/电流 - 输出 3:控制器 带 LED 驱动器:无 带监控器:无 带序列发生器:是 电源电压:5.6 V ~ 24 V 工作温度:-40°C ~ 85°C 安装类型:* 封装/外壳:* 供应商设备封装:* 包装:* |
| ADP2140CPZ-REDYKIT | 功能描述:REDYKIT 2 BOARDS ADP2140ACPZ RoHS:是 类别:编程器，开发系统 >> 评估板 - 线性稳压器 (LDO) 系列:* 产品变化通告:1Q2012 Discontinuation 30/Mar/2012 设计资源:NCP590MNDPTAGEVB Gerber Files 标准包装:1 系列:- 每 IC 通道数:2 - 双 输出电压:1.8V，2.8V 电流 - 输出:300mA 输入电压:2.1 ~ 5.5 V 稳压器类型:正，固定式 工作温度:-40°C ~ 85°C 板类型:完全填充 已供物品:板 已用 IC / 零件:NCP590MNDP 其它名称:NCP590MNDPTAGEVB-NDNCP590MNDPTAGEVBOS |
| ADP2147 | 制造商:AD 制造商全称:Analog Devices 功能描述:Compact, 800 mA, 3 MHz, Simple DVS, Buck Regulator Input voltage: 2.3 V to 5.5 V |
| ADP2147ACBZ-110-R7 | 功能描述:IC REG BUCK SYNC 0.8A 6WLCSP 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 |
| ADP2147ACBZ-130-R7 | 功能描述:IC REG BUCK SYNC 0.8A 6WLCSP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:500 系列:- 类型:切换式电容器（充电泵），反相 输出类型:固定 输出数:1 输出电压:-3V 输入电压:2.3 V ~ 5.5 V PWM 型:Burst Mode? 频率 - 开关:900kHz 电流 - 输出:100mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 细型，TSOT-23-6 包装:带卷 (TR) 供应商设备封装:TSOT-23-6 其它名称:LTC1983ES6-3#TRMTR |
发布紧急采购，3分钟左右您将得到回复。