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LTC3554EUD#TRPBF
+BOMIC USB POWER MANAGER 20UTQFN
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メーカーテキサス・インスツルメンツ
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メーカー品番 #LTC3554EUD#TRPBF
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データシート LTC3554EUD#TRPBF DataSheet
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在庫状況8634
365 日間品質保証
7*24 日間の品質保証
90-時間単位のサービス保証
1日間のアフターサービス保証
仕様
| 属性 | 値 |
| Series | PowerPath™ |
| Part Status | Active |
| Applications | Handheld/Mobile Devices |
| Supply Current | 10µA |
| Voltage - Supply | 2.7V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package / Case | 20-WFQFN Exposed Pad |
| Supplier Device Package | 20-QFN (3x3) |
| Base Product Number | LTC3554 |
概要
Description
Key features include a battery charger capable of charging a single-cell Li-Ion battery, and two step-down converters for powering digital circuits with separate voltage levels. The device offers high efficiency over a wide load range and includes features such as programmable charge current, output voltage options, and safety timers. It also includes thermal regulation, short-circuit protection, and low quiescent current, enhancing the overall reliability and safety of the devices employing it.
The LTC3554EUD#TRPBF is typically used in applications such as smartphones, tablets, and other portable devices where efficient power management is crucial for performance and battery longevity.
Equivalent
1. MAX8900 from Maxim Integrated - a high-efficiency PMIC for portable devices.
2. TPS65070 from Texas Instruments - an integrated PMIC with similar functionalities.
3. BD71837MWV from ROHM - a PMIC for battery-operated devices.
4. PMIC LM3658 from Texas Instruments - for battery charging and power path management.
These alternatives provide similar features like battery charging, power management, and efficiency optimization.
Features
The buck regulator offers up to 400mA output current with a fixed output voltage option, ensuring efficient power conversion. The charger includes battery temperature monitoring, trickle charge, and a C/10 charge termination. It also features a low-dropout (LDO) regulator that can supply up to 150mA. The device is protected against over-current, over-voltage, and over-temperature conditions.
With its compact 3mm x 3mm DFN package, the LTC3554EUD#TRPBF is ideal for space-constrained applications like smartphones, MP3 players, and other handheld devices. Its high integration level reduces the need for external components, simplifying design and minimizing overall system cost.
Pinout
- Pin Count: The device comes in a 16-lead (pin) 3mm x 3mm DFN (Dual Flat No-Lead) package.
- Functions:
1. Battery Charger: It provides a constant-current/constant-voltage battery charger for single-cell Li-Ion, Li-Polymer batteries.
2. PowerPath Control: Manages power distribution between the USB, wall adapter, and battery.
3. Two High-Efficiency Step-Down DC/DC Converters: Used for generating multiple supply voltages needed in portable devices.
4. Low Dropout Regulator (LDO): Provides an additional low-noise output for sensitive circuitry.
5. Battery Health Monitoring: Includes safety features like battery temperature monitoring and overcharge protection.
It is suitable for applications where space and power efficiency are critical.
Manufacturer
Application
1. Portable Electronics: Used in devices like smartphones, tablets, and wearables for efficient battery charging and power management.
2. Handheld Medical Devices: Provides reliable power management for devices requiring portability and long battery life.
3. GPS Devices: Ensures efficient power usage in navigation systems.
4. Wireless Sensors and IoT Devices: Supports low-power operation for extended battery life in various sensors and Internet of Things applications.
These application areas benefit from the LTC3554EUD#TRPBF's compact design, efficient battery charger, and low standby current consumption.