ACE575U datasheet(4/10 Pages) ACE

部件名	ACE575U

功能描述	350mA, Micropower, Very Low Dropout Linear Regulator

PDF	10 Pages

Scroll/Zoom	100%

制造商	ACE [ACE Technology Co., LTD.]

网页	http://www.ace-ele.com

标志

4 / 10 page

ACE575U

350mA, Micropower, Very Low Dropout Linear Regulator

VER 1.1

Typical Application

ACE575U Output Voltage Setting

The output voltage of the ACE575U adjustable regulator is programmed using an external resistor divider

as shown in Figure 2. The output voltage is calculated using:

Where: VFB=1.00V (Typ) (the internal reference voltage)

Resistors R1 and R2 should be chosen for approximately 3-

5μA divider current. Lower value resistors can

be used but offer no inherent advantage and waste more power. Higher values should be avoided, as

leakage currents at FB increase the output voltage error. The recommended design procedure is to

oose R2=200kΩ to set the divider current at 5μA and then calculate R1 using:

Where: VFB=1.00V (Typ).

Figure 1. ACE575UXX Fixed VOUT Typical Application Circuit

Figure 2. ACE575U Adjustable VOUT Typical Application Circuit

ACE575U 数据表(PDF) 4 Page - ACE Technology Co., LTD.