RP507 系列

600mA带同步整流器功能的PWM/VFM降压DC/DC转换器

下载数据表

概述

The RP507 is low supply current CMOS-based PWM/VFM step-down DC/DC converters with synchronous rectifier. The RP507 is PWM/VFM auto switching control in which mode automatically switches to high-efficiency VFM mode in low output current. The output voltage is adjustable with external divider resistors. The RP507 includes a soft start circuit, an under-voltage lockout circuit (UVLO), thermal shutdown circuit, and an auto-discharge circuit.

By simply using an inductor, capacitors and resistors as external components, a high-efficiency step-down DC/DC converter can be easily configured. A small size inductor (2.0 x 1.2mm, 2.2µH), a small size input capacitor (1.0 x 0.5mm, 4.7µF) and output capacitor (1.0 x 0.5mm, 10µF) can be used. A 1.6mm × 1.6mm DFN(PL)1616-6D package is available.

规格

	消费
输入电压范围	2.3 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. 32 µA
待机电流	Typ. 0 µA
输出电压范围	0.7 V to 5.5 V (As for 1.0 V or less, input voltage range is limited.)
输出电压精度	±1.5% (Ta = 25°C)
反馈电压	0.6 V
反馈电压精度	±9 mV
反馈电压温度系数	Typ. ±100 ppm/°C
输出电流	600 mA
驱动器导通电阻	Pch: Typ. 0.38 Ω, Nch: Typ. 0.3 Ω (VIN = 3.6 V)
振荡器频率	Typ. 2.0 MHz
最大占空比	100%
封装	DFN(PL)1616-6D

下载数据表

TSD	ILX	OCP	OVP	UVLO	OVLO	Reverse	Shutdown	Soft Start	SSCG	PGOOD	Auto Discharge	Anti-ringing	Sequencing	Max Duty	Ext. Phase	LED Adjust

功能说明

品质&封装

产品名称	对应	封装	标注	信赖性
RP507K001B-TR		DFN(PL)1616-6D	请参见数据表	RP507K

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TSD	热关断电路
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