Datasheet > RAA223012

RAA223012

更新时间： 2024-11-30 14:58:23

品牌	Logo	应用领域
瑞萨 - RENESAS		稳压器
页数	文件大小	规格书
23页	2967K
描述
具有超低备用功率的 700V AC/DC 稳压器，输出功率高达 2.5W

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RAA223012 数据手册

Datasheet

RAA223012

700V AC/DC Buck Regulator with Ultra-Low Standby Power

The RAA223012 is a universal input AC/DC switching

buck regulator with ultra-low standby power that

features a 700V integrated MOSFET capable of

delivering up to 2.5W output power (Table 1). It

supports output voltage as low as 3.3V.

Features

▪ Ultra low standby power (<10mW)

▪ No audible noise

▪ Low quiescent current (<100µA)

▪ Output voltage as low as 3.3V

▪ Low EMI with frequency dithering

The RAA223012 combines constant off-time control

for heavy load and Pulse Frequency Modulation

(PFM) for light-load operation. Constant off-time

controls switching frequency above the audible

frequency of approximately 50kHz. PFM eliminates

any potential audible noises while offering superior

light-load efficiency and ultra-low power consumption

(<10mW at no load). Efficiency is achieved up to

75%. The built-in frequency dithering further reduces

the EMI noise spectrum.

▪ 5 Ld TSOT23 and 8 Ld SOIC package options

▪ Programmable PFM allows optimization of C

OUT

for various standby power requirements

▪ Protection features: Short-Circuit Protection (SCP),

Overload Protection (OLP), Open Feedback

Protection, and Over-Temperature Protection

(OTP).

The RAA223012 also features input brownout

protection that prevents input circuitry from the

overcurrent at low input voltage, and hiccup

protections for output fault conditions such as

short-circuit, overload, and open feedback.

Applications

▪ Home appliances

▪ Home automation, IoT, and sensors

▪ Metering and Industry control

▪ Bias power

The RAA223012 is available in a small 5 Ld TSOT23

and 8 Ld SOIC packages.

Table 1. Maximum Output Current (Max. Ambient 85°C)

85V ~265V

(V)

120V

230V

OUT

100mA

140mA

185mA

190mA

100mA

140mA

195mA

190mA

100mA

140mA

170mA

190mA

3.3

VCC

DRAIN

D₃

C_FB1

R_FB1

D₁

RAA223012

C₁

C_VCC

V_IN

85V_AC~265V_AC

R_FB2

CFB2

SOURCE

GND

L₁

C_OUT

V_OUT

D₂

Figure 1. Typical RAA223012 Buck Application Circuit

R16DS0139EU0302 Rev.3.02

Oct 10, 2023

Page 1

12 3 4 5 6 7...23

中文翻译

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