MP2303A 3A/28V同步降压转换器详细资料

大电流稳压IC
DC-DC电源
需积分: 11 4 下载量 166 浏览量 更新于2024-07-16 1 收藏 428KB PDF 举报
MP2303A是一款高性能的同步降压转换器，专为大电流应用设计，其版本为R1.1。这款单片集成的芯片由Monolithic Power Systems公司生产，旨在提供稳定、高效的DC-DC电源解决方案。其主要特性包括： 1. 高达3A的输出电流：MP2303A能够持续输出3安培的电流，满足对功率需求较大的设备，如高功率电子设备或需要大电流供应的应用。 2. 宽广的输入电压范围：工作电压覆盖4.7V至28V，这意味着它适用于各种电池供电设备，如智能手机、平板电脑的适配器或者工业级设备，能适应宽泛的电源环境。 3. 集成MOSFET开关：内置的150mΩ高侧MOSFET和80mΩ低侧MOSFET减少了对外部组件的依赖，简化了电路设计，并且提高了效率。 4. 可调输出电压：输出电压可以从0.80V调整到25V，为用户提供更大的灵活性，适应不同负载和应用需求。 5. 高效率：最高可达95%的效率，这意味着在实际运行中，大部分输入电能被转化为有用输出，减少了能量损失。 6. 软启动功能：具有可编程的软启动特性，能够防止在开机时的大电流冲击，保护电路免受瞬间过载。 7. 低功耗待机模式：在休眠模式下，电流消耗降至小于1μA，这对于电池供电设备来说是十分关键的节能特性。 8. 稳定性与陶瓷输出电容兼容：设计上考虑了使用低ESR（等效串联电阻）的陶瓷电容，确保输出电压的稳定性。 9. 固定360kHz工作频率：虽然具体设计可能要求特定的滤波电路，但360kHz的工作频率使得电路设计更为紧凑，有利于小型化设计。 MP2303A R1.1是一款高效、小巧的电源管理解决方案，适合需要大电流、宽电压输入范围以及优良性能的现代电子系统，无论是消费电子产品还是工业控制设备，都能找到其应用场景。在使用该芯片时，用户需要参考其数据手册，了解详细的电气参数、使用注意事项以及PCB布局指南，以确保电路设计的正确性和安全性。

基于MP2303A的DC-DC电源模块设计（原理图、PCB源文件、封装等）-电路方案

2021-04-21 上传
电源是将其它形式的能转换成电能的装置。美国Vicor公司是现时世界最大的高密度电源模块生产商, 同时也是全球唯一能以零电压、零电流技术大批量生产电源模块的厂家。主要产品有AC-DC及DC-DC电源模块，配置式电源（一体化电源）和客户定制电源，其所有组件都是在位于美国东部Andover市的自动化生产线生产。所有Vicor产品都经过CE、CTÜVus、CULus、CB、UL、TÜV等国际安全论证及ISO9001:2000认证，同时符合ROHS要求。Vicor产品性能卓越稳定已被广泛应用于国内外通讯、铁路、生产设备、工业控制、军工、航空等领域。 该设计为基于MP2303ADN芯片的DC-DC电源模块 输入电压:4.7V~28V 输出电压:1.8V~25V 输出电流:3A 工作温度:-40℃~+85℃ 方便拼版打样，跟官方推荐电路布线一致，可靠保证。 参数见截图: DC-DC电源模块PCB 3D截图: 附件内容截图:

MP2303ADN手册

2022-07-12 上传
MP2303ADN手册

MP2303芯片手册

2016-01-20 上传
MP2303芯片手册,英文版的，ps芯片挺好用

优化这个sql SELECT count( 1 ) FROM ( SELECT B.ID, B.PURCHASE_REQUEST_ID, B.MATERIAL_ID, B.MATERIAL_CODE, B.MATERIAL_NAME, B.STANDARD, B.MODEL_ID, B.BILL_ROW_ID, B.BILL_NO, BILL_NAME, B.MODEL_CODE, B.MODEL_NAME, B.PARENT_MODEL_ID, B.PARENT_MODEL_CODE, B.PARENT_MODEL_NAME, B.UNIT_CODE, B.UNIT_NAME, B.PURCHASE_TYPE_CODE, CAST( NVL( B.APPLY_NUM, 0 ) AS NUMBER ( 24, 10 ) ) AS APPLY_NUM, CAST( NVL( B.DEAL_NUM, 0 ) AS NUMBER ( 24, 10 ) ) AS DEAL_NUM, CAST( NVL( B.RETURN_NUM, 0 ) AS NUMBER ( 24, 10 ) ) AS RETURN_NUM, B.DEAL_USER_ID, B.DEAL_USER_NAME, CAST( NVL( B.PRICE, 0 ) AS NUMBER ( 24, 10 ) ) AS PRICE, CAST( NVL( B.AMOUNT, 0 ) AS NUMBER ( 24, 10 ) ) AMOUNT, B.IMPLEMENT_CODE, B.IMPLEMENT_NAME, B.IMPLEMENT_INVEST_AMOUNT, B.PURCHASE_MANAGER_ID, B.PURCHASE_MANAGER_NAME, B.PROVIDER_ID, B.PROVIDER_NAME, B.REMARK, B.DELIVER_AREA, B.DELIVER_ADDRESS, B.RECEIVE_PEOPLE, B.RECEIVE_PEOPLE_PHONE, B.ITEM_STATUS, B.COST_CENTER, B.COST_BUDGET_CODE, B.COST_IMPLEMENT_NAME, B.FRAME_CONT_ID, B.FRAME_CONT_CODE, B.FRAME_CONT_NAME, B.DETAIL_CONFIG, B.PURCHASE_CATEGORY_CODE, B.INVOICE_TITLE_CODE, B.INVOICE_SEND_ADDRRSS, B.MATERIAL_REQUEST_ITEM_ID, B.YEAR, B.DELETE_FLAG, B.PROVINCE_CODE, B.REASON, B.PARENT_ITEM_ID, B.FRAME_CONT_ITEM_ID, B.SUB_MATERIAL_REQUEST_ID, B.SUB_MATERIAL_REQUEST_CODE, B.MATERIAL_URL, B.RECOMMEND_PROVIDER_NAMES, C.PURCHASE_REQUEST_CODE, C.PURCHASE_REQUEST_NAME, C.APPLY_TYPE_CODE, C.CREATOR_NAME, C.APPLY_TELEPHONE, C.COMPANY_NAME, C.DEPT_NAME, B.CREATE_TIME, TO_CHAR( B.CREATE_TIME, 'YYYY-MM-DD' ) CREATE_TIME_STR, C.ARRIVE_TIME, C.IS_TO_END, C.MONEY_WAY_CODE, C.OWN, C.APPLY_CATEGORY_CODE, C.manu_Type, C.BILL_ID, MMD.MATERIAL_TYPE_CODE, B.BRANCH_COMPANY_DEAL_USER_ID, B.BRANCH_COMPANY_DEAL_USER_NAME, ( SELECT ORG_NAME FROM ORGANIZATIONS WHERE DELETE_FLAG = '0' AND ORG_CODE = ( SELECT PARENT_COMPANY_NO FROM ORGANIZATIONS WHERE ID = B.MATERIAL_DEPT_ID )) AS MATERIAL_COMPANY_NAME, B.ORIGINAL, B.PROVIDER_PRODUCT_MODEL, B.PROVIDER_PRODUCT_NAME, B.PRODUCT_DESC, B.Back_Flag, CASE WHEN MMD.material_type_code = 'WZ' THEN '1' WHEN MMD.material_type_code = 'FW' THEN '2' ELSE '3' END apply_category_code_item, NVL( C.IS_CARDSYSTEM_REQUEST, '0' ) IS_CARDSYSTEM_REQUEST, B.APPLY_GROUP_AUTHORITES, B.SCIENTIFIC_RESEARCH_ID, B.SCIENTIFIC_RESEARCH_CODE, B.SCIENTIFIC_RESEARCH_NAME, B.PREQUALFY_CODE, nvl( C.IS_QUICK, '0' ) AS IS_QUICK, C.PURCHASE_WAY_CODE, C.PURCHASE_TYPE_CODE PURCHASE_TYPE_CODE_P, C.ORIGINAL_TYPE, C.PURCHASE_REQUEST_BILLS_TYPE, B.IS_FRAME_CONT_MONAD FROM PURCHASE_REQUEST_ITEM B LEFT JOIN PURCHASE_REQUEST C ON B.PURCHASE_REQUEST_ID = C.ID LEFT JOIN MATERIAL_DATA MMD ON MMD.ID = B.MATERIAL_ID AND MMD.DELETE_FLAG = '0' WHERE B.delete_flag = '0' AND B.Item_Status IN ( 1 ) AND NOT EXISTS ( SELECT * FROM purchase_request_item_log pril WHERE B.id = pril.purchase_request_item_id AND pril.lock_status = '1' AND pril.delete_flag = '0' ) AND ( ( c.apply_type_code NOT IN ( '20', '41', '3' ) AND nvl( B.Apply_Num, 0 ) > nvl( B.Deal_Num, 0 )) OR c.apply_type_code IN ( '20', '41', '3' ) ) AND B.Deal_User_Id =: 1 AND C.MONEY_WAY_CODE =: 2 AND C.APPLY_TYPE_CODE =: 3 AND C.PAY_OUT_TYPE_CODE =: 4 AND C.APPLY_CATEGORY_CODE =: 5 AND NVL( C.IS_CARDSYSTEM_REQUEST, '0' ) = : 6 AND NOT EXISTS ( SELECT * FROM purchase_request_item p left join material_province mp ON p.material_id = mp.material_id WHERE p.delete_flag = 0 AND mp.delete_flag = 0 AND mp.material_status = 03 AND mp.org_code = p.province_code AND p.id = B.id ) ORDER BY C.ID, B.ID ASC)

2023-06-08 上传
LEFT JOIN material_province mp ON p.material_id = mp.material_id WHERE p.delete_flag = 0 AND mp.delete_flag = 0 AND mp.material_status = 03 AND mp.org_code = p.province_code AND p.id = b.id ) ...

请下列将Oracle语句转为mysql语句 CASE WHEN t.pm_mp_machine_id = 'JJY213' THEN ROUND(t.STOPTIME/60, 0) ELSE ROUND((t.STOPTIME - COALESCE((SELECT lag(t2.STOPTIME) FROM MT_DC_PM_MP_PT110DATA t2 WHERE t2.producedate = t.producedate AND t2.pb_shift_id = t.pb_shift_id AND t2.pm_mp_machine_id = t.pm_mp_machine_id AND t2.pm_mp_stopcode_id = t.pm_mp_stopcode_id AND t2.no < t.no ORDER BY t2.no DESC LIMIT 1), 0))/60, 0) END AS STOPTIME

2023-07-14 上传
id = t.pb_shift_id AND t2.pm_mp_machine_id = t.pm_mp_machine_id AND t2.pm_mp_stopcode_id = t.pm_mp_stopcode_id AND t2.no < t.no ORDER BY t2.no DESC LIMIT 1), 0))/60, 0) END AS STOPTIME 请注意，MySQL...

import cv2 import mediapipe as mp mp_drawing = mp.solutions.drawing_utils mp_drawing_styles = mp.solutions.drawing_styles mp_holistic = mp.solutions.holistic # For webcam input: filepath='F:\\video000\\ce.mp4' cap = cv2.VideoCapture(filepath) with mp_holistic.Holistic( min_detection_confidence=0.5, min_tracking_confidence=0.5) as holistic: while cap.isOpened(): success, image = cap.read() if not success: print("Ignoring empty camera frame.") # If loading a video, use 'break' instead of 'continue'. break # To improve performance, optionally mark the image as not writeable to # pass by reference. image.flags.writeable = False image = cv2.cvtColor(image, cv2.COLOR_BGR2RGB) results = holistic.process(image) # Draw landmark annotation on the image. image.flags.writeable = True image = cv2.cvtColor(image, cv2.COLOR_RGB2BGR) mp_drawing.draw_landmarks( image, results.face_landmarks, mp_holistic.FACEMESH_CONTOURS, landmark_drawing_spec=None, connection_drawing_spec=mp_drawing_styles .get_default_face_mesh_contours_style()) mp_drawing.draw_landmarks( image, results.pose_landmarks, mp_holistic.POSE_CONNECTIONS, landmark_drawing_spec=mp_drawing_styles .get_default_pose_landmarks_style()) # Flip the image horizontally for a selfie-view display. cv2.imshow('MediaPipe Holistic', cv2.flip(image, 1)) if cv2.waitKey(5) & 0xFF == 27: break cap.release() 在这段代码中引入注意力机制，使人体步态特征更好的提取

2023-06-07 上传
mp_drawing_styles = mp.solutions.drawing_styles mp_holistic = mp.solutions.holistic # For webcam input: filepath = 'F:\\video000\\ce.mp4' cap = cv2.VideoCapture(filepath) with mp_holistic.Holistic( ...

landmarks = results.pose_landmarks.landmark if landmarks[mp_pose.PoseLandmark.LEFT_SHOULDER].y > landmarks[mp_pose.PoseLandmark.LEFT_ELBOW].y \ and landmarks[mp_pose.PoseLandmark.RIGHT_SHOULDER].y > landmarks[mp_pose.PoseLandmark.RIGHT_ELBOW].y: print("站立") elif landmarks[mp_pose.PoseLandmark.LEFT_SHOULDER].y < landmarks[mp_pose.PoseLandmark.LEFT_HIP].y \ and landmarks[mp_pose.PoseLandmark.RIGHT_SHOULDER].y < landmarks[mp_pose.PoseLandmark.RIGHT_HIP].y: print("坐姿") else: print("躺姿")

2023-05-11 上传
这段代码是使用 MediaPipe 库中的姿势估计模型，通过检测人体关键点的位置来判断人体的姿势。具体来说，代码首先通过 `results.pose_landmarks.landmark` 获取到所有关键点的位置信息，然后通过比较左右肩膀、左右...

marvell_88nv1120_mptool__hynix.rar

2023-08-01 上传
marvell_88nv1120_mptool__hynix.rar 文件是一个存储在RAR压缩格式中的软件工具包。该工具包针对Marvell 88nv1120芯片的硬盘控制器开发，用于处理Hynix品牌的存储设备。Marvell 88nv1120 是一种常见的芯片，广泛用于...

请下列将Oracle语句转为mysql语句 CASE WHEN t.pm_mp_machine_id = 'JJY213' THEN ROUND(t.STOPTIME/60, 0) ELSE ROUND((t.STOPTIME - (CASE WHEN t.no > 1 THEN COALESCE(LAG(t.STOPTIME, 1) OVER(PARTITION BY t.producedate, t.pb_shift_id, t.pm_mp_machine_id, t.pm_mp_stopcode_id ORDER BY t.no), 0) ELSE 0 END))/60, 0) END AS STOPTIME

2023-07-14 上传
shift_id = t.pb_shift_id AND t2.pm_mp_machine_id = t.pm_mp_machine_id AND t2.pm_mp_stopcode_id = t.pm_mp_stopcode_id AND t2.no < t.no ORDER BY t2.no DESC LIMIT 1), 0))/60, 0) END AS STOPTIME ...

alcor_u3_mp_v21.05.10.00.s

2023-07-03 上传
alcor_u3_mp_v21.05.10.00.s是一个文件或者固件版本号。根据命名规则可以推断出它可能与某个设备的固件或驱动程序相关。这个版本号的最后一部分"s"可能指示它是一个稳定版本，因为稳定版本通常以字母s结尾。 根据...
crystal_266
  • 粉丝: 209
  • 资源: 46
上传资源 快速赚钱

最新资源