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| 型号： | ADP2164ACPZ-1.8-R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC 1.8V 4A 16LFCSP |
| 标准包装： | 1,500 |
| 类型： | 降压（降压） |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 1.8V |
| 输入电压： | 2.7 V ~ 6.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 500kHz ~ 1.4MHz |
| 电流 - 输出： | 4A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WQFN 裸露焊盘，CSP |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 16-LFCSP-WQ（4x4） |
6.5 V, 4 A, High Efficiency,
Step-Down DC-to-DC Regulator
Data Sheet
FEATURES
TYPICAL APPLICATIONS CIRCUIT
4 A continuous output current
R1
V IN
43 mΩ and 29 mΩ integrated FET
R2
C1
C IN
±1.5% output accuracy
Input voltage range: 2.7 V to 6.5 V
Output voltage: 0.6 V to V IN
Switching frequency
Fixed frequency: 600 kHz or 1.2 MHz
Adjustable frequency: 500 kHz to 1.4 MHz
Synchronizable from 500 kHz to 1.4 MHz
Selectable synchronize phase shift: 0° or 180°
R T
PGOOD VIN
EN
SYNC
ADP2164
TRK
RT
PVIN
SW
FB
PGND
GND
L
C OUT
V OUT
Current mode architecture
Precision enable input
Power-good output
Voltage tracking input
Integrated soft start
Internal compensation
Starts up into a precharged output
UVLO, OVP, OCP, and thermal shutdown
Available in 16-lead, 4 mm × 4 mm LFCSP package
Supported by ADIsimPower?designtool
APPLICATIONS
100
95
90
85
80
75
70
65
Figure 1.
Point-of-load conversion
Communications and networking equipment
Industrial and instrumentation
60
55
V IN = 5V
f S = 600kHz
V OUT = 1.2V
V OUT = 3.3V
Consumer electronics
50
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
OUTPUT CURRENT (A)
Figure 2. Efficiency vs. Output Current
GENERAL DESCRIPTION
The ADP2164 is a 4 A, synchronous, step-down dc-to-dc regulator
in a compact 4 mm × 4 mm LFCSP package. The regulator uses a
current mode, constant frequency pulse-width modulation (PWM)
control scheme for excellent stability and transient response.
The input voltage range of the ADP2164 is 2.7 V to 6.5 V. The
output voltage of the ADP2164 is adjustable from 0.6 V to the
input voltage (V IN ). The ADP2164 is also available in six preset
output voltage options: 3.3 V, 2.5 V, 1.8 V, 1.5 V, 1.2 V, and 1.0 V.
The ADP2164 integrates a pair of low on-resistance P-channel
and N-channel internal MOSFETs to maximize efficiency and
minimize external component count. The 100% duty cycle
operation allows low dropout voltage at 4 A output current.
The high, 1.2 MHz PWM switching frequency allows the use of
small external components, and the SYNC input enables multiple
ICs to synchronize out of phase to reduce ripple and eliminate
beat frequencies.
Other key features of the ADP2164 include undervoltage lockout
(UVLO), integrated soft start to limit inrush current at startup,
overvoltage protection (OVP), overcurrent protection (OCP),
and thermal shutdown.
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.
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 ?2011–2021 Analog Devices, Inc. All rights reserved.
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