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| 型号： | ADP2114-EVALZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 6/40页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION 3.3V/1.8V |
| 设计资源： | Powering AD9268 with ADP2114 for Increased Efficiency (CN0137) |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 2，非隔离 |
| 输出电压： | 可调 |
| 电流 - 输出： | 4A，2A |
| 输入电压： | 2.75 ~ 5.5 V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 300kHz，600kHz，1.2MHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | ADP2114 |
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ADP2114
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Data Sheet
GND
COMP1
1
2
24
23
SW1
SW2
FREQ
SCFG
SYNC/CLKOUT
OPCFG
COMP2
VDD
3
4
5
6
7
8
ADP2114
TOP VIEW
(Not to Scale)
THERMAL PAD
22
21
20
19
18
17
PGND1
PGND2
PGND3
PGND4
SW3
SW4
NOTES
1. CONNECT THE EXPOSED THERMAL PAD TO THE
SIGNAL/ANALOG GROUND PLANE.
Figure 3. Pin Configuration
Table 3. Pin Function Descriptions
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
Mnemonic
GND
COMP1
FREQ
SCFG
SYNC/CLKOUT
OPCFG
COMP2
VDD
FB2
V2SET
SS2
PGOOD2
EN2
Description
Ground for the Internal Analog and Digital Circuits. Connect GND to the signal/analog ground plane before
connecting to the power ground.
Error Amplifier Output for Channel 1. Connect a series RC network from COMP1 to GND to compensate for
Channel 1. For multiphase operation, tie COMP1 and COMP2 together.
Frequency Select Input. Connect this pin through a resistor to GND to set the appropriate switching frequency
Synchronization Configuration Input. SCFG configures the SYNC/CLKOUT pin as an input or output. Tie this pin
to VDD to configure SYNC/CLKOUT as an output. Tie this pin to GND to configure SYNC/CLKOUT as an input.
This is a configurable bidirectional pin (configured with the SCFG pin—see the Pin 4 description for details).
When SYNC/CLKOUT is an output, a buffered clock of twice the switching frequency with a phase shift of 90°
is available on this pin. When configured as an input, this pin accepts an external clock to which the converters
are synchronized. The frequency select resistor, mentioned in the description of Pin 3, must be selected close to
the expected switching frequency for stable operation.
Operation Configuration Input. Connect this pin through a resistor to GND to set the system mode of operation
according to Table 7. This pin can be used to select a peak current limit for each power channel and enable or
disable the pulse skip mode.
Error Amplifier Output for Channel 2. Connect a series RC network from COMP2 to GND to compensate the
Channel 2. Tie COMP1 and COMP2 together for multiphase configuration.
Power Supply Input. The power source for the ADP2114 internal circuitry. Connect VDD and VINx with a
10 Ω resistor as close as possible to the ADP2114. Bypass VDD to GND with a 1 μF or greater capacitor.
Feedback Voltage Input for Channel 2. For the fixed output voltage option, connect FB2 to V OUT2 . For the
adjustable output voltage option, connect this pin to a resistor divider between V OUT2 and GND. The reference
voltage for the adjustable output voltage option is 0.6 V. With multiphase configurations, connect FB2 to FB1
and then connect them to V OUT .
Output Voltage Set Pin for Channel 2. Connect this pin through a resistor to GND or tie to VDD to select a fixed
output voltage option (0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, or 3.3 V) or an adjust output voltage for V OUT2 . See Table 4
for output voltage selection.
Soft Start Input for Channel 2. Place a capacitor from SS2 to GND to set the soft start period. A 10 nF capacitor
sets a 1 ms soft start period. For multiphase configuration, connect SS2 to SS1.
Open-Drain Power Good Output for Channel 2. Place a 100 kΩ pull-up resistor to VDD or any other voltage ≤ 5.5 V;
PGOOD2 pulls low when Channel 2 is out of regulation.
Enable Input for Channel 2. Drive EN2 high to turn on the Channel 2 converter and drive EN2 low to turn off
Channel 2. Tie EN2 to VDD for startup with VDD. With multiphase configuration, tie EN2 to EN1.
Rev. B | Page 6 of 40
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADP2114-EVALZ | 制造商:Analog Devices 功能描述:4A Step-Down DC/DC Converter Evaluation 制造商:Analog Devices 功能描述:ADP2114, DC TO DC CONVERTER, STEP DOWN, EVAL BOARD |
| ADP2116 | 制造商:AD 制造商全称:Analog Devices 功能描述:Configurable, Dual 3 A/Single 6 A, Synchronous, Step-Down DC-to-DC Regulator |
| ADP2116ACPZ-R7 | 功能描述:IC REG BUCK SYNC ADJ 32LFCSP 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:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 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:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| ADP2116ACPZ-R7 | 制造商:Analog Devices 功能描述:DC/DC CONVERTER IC |
| ADP2116-BL1-EVZ | 功能描述:EVAL BOARD FOR ADP2116 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 |
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