RP904 系列
1A Step-down DC/DC Converter with Synchronous Rectifier and Through mode
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概述
The RP904 Series are CMOS-based step-down DCDC converters with Synchronous Rectifier featuring 1 A* output current and have through mode. RP904 includes an under-voltage lockout circuit (UVLO), a soft start circuit and a timer latch protection circuit. By simply using an inductor and capacitors as external components, a high-efficiency step-down DCDC converter can be easily configured.
The output voltage of DCDC converter can be selected from 2 voltage by inputting signal to VSEL pin. The DCDC converter is PWM/VFM manual switching control. RP904 is able to select DCDC mode or through mode by inputting signal to BYPASS pin. WLCSP-11-P2 package is available.
*) This is an approximate value, because output current depending on conditions and external parts.
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规格
消费 输入电压范围 2.5 V to 5.5 V (6.5 V) 工作温度范围 -40°C to 85°C (125°C) 电源电流 Typ. 435 µA (Through mode)
Typ. 410 µA (PWM mode, non-switching)
Typ. 165 µA (VFM mode, non-switching)待机电流 Typ. 0.02 µA (VIN = 5.5 V, CE = "L") 输出电压范围 VSET1: 1.2 V to 3.3 V (0.1 V step)
VSET2: 1.0 V to 1.5 V (0.1 V step)输出电压精度 VSET1: ±2%
VSET2: ±30 mV输出电流 1 A 振荡器频率 Typ. 2 MHz 最大占空比 Min. 100% 封装 WLCSP-11-P2 保护回路/功能
TSD ILX OCP OVP UVLO OVLO Reverse Shutdown Soft Start SSCG PGOOD Auto Discharge Anti-ringing Sequencing Max Duty Ext. Phase LED Adjust -
技术资料
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Typical Application
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Efficiency vs. Output Current
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相关信息
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品质&封装
产品名称 对应 封装 标注 信赖性 RP904Zxx1A-E2-F WLCSP-11-P2 RP904Z RP904Z-F - 有关产品的详细信息,请参见数据表。
- 封装文件或数据表包括封装尺寸,卷带规格,卷带盘尺寸,功耗和建议的焊盘图案。
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买入/样品
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下载数据表
功能说明
TSD | 热关断电路 |
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ILX | LX Current Limit Function |
OCP | 过流保护 |
OVP | 过压保护 |
UVLO | 欠压锁定功能 |
OVLO | Overvoltage Lockout Protection |
Reverse | 反向电流保护电路 |
Shutdown | 关机功能 |
Soft Start | 软启动功能 |
SSCG | Spread Spectrum Clock Generator Function |
PGOOD | Power Good Output |
Auto Discharge | 自动放电功能 |
Anti-ringing | Anti-ringing Switch Function |
Sequencing | Start-up Sequencing Control |
Max Duty | 最大占空比 |
Ext. Phase | 外部可调相位补偿 |
LED Adjust | LED High-speed Dimming Control |