- 您现在的位置：买卖IC网 > PDF目录17399 > ADP2302-EVALZ (Analog Devices Inc)EVAL BOARD FOR ADP2302 PDF资料下载
参数资料
| 型号： | ADP2302-EVALZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 15/28页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR ADP2302 |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 1，非隔离 |
| 电流 - 输出： | 2A |
| 输入电压： | 3 ~ 20 V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 700kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | ADP2302 |
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页当前第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
Data Sheet
Table 5. Correlation Between f SW and V FB
ADP2302/ADP2303
OVERVOLTAGE PROTECTION (OVP)
FB Pin Voltage
V FB ≥ 0.6 V
0.4 V < V FB < 0.6 V
0.2 V < V FB ≤ 0.4 V
V FB ≤ 0.2 V
Switching Frequency
f SW
1/2 f SW
1/4 f SW
1/8 f SW
The ADP2302/ADP2303 provide an overvoltage protection
feature to protect the system against an output short to a higher
voltage supply. If the feedback voltage is above 0.880 V, the
internal high-side MOSFET is turned off, until the voltage at FB
decreases to 0.850 V. At that time, the ADP2302/ADP2303
When a hard short (V FB ≤ 0.2 V) is removed, a soft start cycle
is initiated to regulate the output back to its level during normal
operation, which helps to limit the inrush current and prevent
possible overshoot on the output voltage.
UNDERVOLTAGE LOCKOUT (UVLO)
The ADP2302/ADP2303 have fixed, internally set undervoltage
lockout circuitry (UVLO). If the input voltage drops below
2.4 V, the ADP2302/ADP2303 shut down and the MOSFET
switch turns off. After the voltage rises above 2.7 V, the soft
start period is initiated, and the part is enabled.
THERMAL SHUTDOWN (TSD)
If the ADP2302/ADP2303 junction temperature rises above 150 ? C,
the thermal shutdown circuit disables the chip. Extreme junction
temperature can be the result of high current operation, poor
circuit board design, or high ambient temperature. A 15 ? C
resume normal operation.
POWER GOOD
The PGOOD pin is an active high, open-drain output and
requires a resistor to pull it up to a voltage (<20.0 V). A high
indicates that the voltage on the FB pin (and therefore the
output voltage) is above 87.5% of the reference voltage. A low
indicates that the voltage on the FB pin is below 85% of the
reference voltage. There is a 32-cycle waiting period after FB is
detected as being in or out of bounds.
CONTROL LOOP
The ADP2302/ADP2303 are internally compensated to minimize
external component count and cost. In addition, the built-in
slope compensation helps to prevent subharmonic oscillations
when the ADP2302/ADP2303 operate at a duty cycle greater
than or close to 50%.
hysteresis is included so that when thermal shutdown occurs,
the ADP2302/ADP2303 do not return to operation until the on-
chip temperature drops below 135 ? C. When the devices recover
from thermal shutdown, a soft start is initiated.
Rev. A | Page 15 of 28
相关PDF资料 |
PDF描述 |
|---|---|
| AUIR33401STRR | IC SW IPS 1CH HIGH SIDE D2PAK-7 |
| RSC07DREI-S13 | CONN EDGECARD 14POS .100 EXTEND |
| LQH43CN3R3M03L | INDUCTOR 3.3UH 20% 800MA 1812 |
| SL22HE3/52T | DIODE SCHOTTKY 2A 20V SMB |
| AUIR33401STRL | IC SW IPS 1CH HIGH SIDE D2PAK-7 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADP2303 | 制造商:AD 制造商全称:Analog Devices 功能描述:Quad-Channel, 12-Bit, Serial Input, 4 mA to 20 mA |
| ADP2303ACPZ-R7 | 制造商:Analog Devices 功能描述:ADP2303 3A, 20V NON-SYNC STEP-DOWN DC-DC CONVERTER - Tape and Reel |
| ADP2303ARDZ | 功能描述:IC REG BUCK ADJ 3A 8SOIC 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:升压（升压） 输出类型:可调式 输出数:1 输出电压:1.24 V ~ 30 V 输入电压:1.5 V ~ 12 V PWM 型:电流模式，混合 频率 - 开关:600kHz 电流 - 输出:500mA 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:8-SOIC（0.154"，3.90mm 宽） 包装:带卷 (TR) 供应商设备封装:8-SOIC |
| ADP2303ARDZ-2.5 | 制造商:Analog Devices 功能描述: |
| ADP2303ARDZ-2.5-R7 | 功能描述:IC REG BUCK 2.5V 3A 8SOIC 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。