Datasheet > MP8801DJ-2.5-LF

MP8801DJ-2.5-LF

更新时间： 2024-02-19 10:23:31

品牌	Logo	应用领域
芯源 - MPS		光电二极管输出元件调节器
页数	文件大小	规格书
9页	232K
描述
Fixed Positive LDO Regulator, 2.5V, PMOS, PDSO5, ROHS COMPLIANT, MO-193AA, TSOT-23, 5 PIN

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MP8801DJ-2.5-LF 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	TSOT
包装说明：	VSSOP,	针数：	6
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	Factory Lead Time：	12 weeks
风险等级：	5.18	最大输入电压：	6.5 V
最小输入电压：	2.7 V	JESD-30 代码：	R-PDSO-G5
JESD-609代码：	e3	长度：	2.9 mm
湿度敏感等级：	1	功能数量：	1
端子数量：	5	工作温度TJ-Max：	150 °C
最大输出电流 1：	0.15 A	最大输出电压 1：	2.55 V
最小输出电压 1：	2.45 V	标称输出电压 1：	2.5 V
封装主体材料：	PLASTIC/EPOXY	封装代码：	VSSOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：	260	认证状态：	Not Qualified
调节器类型：	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	座面最大高度：	1 mm
表面贴装：	YES	技术：	PMOS
端子面层：	Matte Tin (Sn)	端子形式：	GULL WING
端子节距：	0.95 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	40	宽度：	1.6 mm
Base Number Matches：	1

MP8801DJ-2.5-LF 数据手册

MP8801 – LOW DROPOUT, 150mA LINEAR REGULATOR

Input Capacitor Selection

APPLICATION INFORMATION

Setting the Output Voltage

The fixed output voltage of the MP8801DJ is set

to 2.5V, 2.85V or 3.3V, depending on the

internal resistor divider (Figure 1). You can also

adjust the output voltage by using an external

resistor divider (R1 and R2 in Figure 2).

However, the sum of R1 and R2 should not

exceed 100kΩ in order to minimize the impact

of the internal resistor divider. For an accurate

output-voltage setting, use 10kΩ (±1%) for the

low-side resistor R2 of the voltage divider, while

the high-side resistor R1 can be determined by

the equation:

For proper operation, place a ceramic capacitor

(C1) between 1µF and 10µF of dielectric type

X5R or X7R between the input pin and ground.

Larger values in this range will help improve

line transient response at the drawback of

increased size.

Output Capacitor Selection

For stable operation, use a ceramic capacitor

(C3) of type X5R or X7R between 1µF and

10µF. Larger values in this range will help

improve load transient response and reduce

noise with the drawback of increased size.

Output capacitors of other dielectric types may

be used, but are not recommended as their

capacitance can deviate greatly from their rated

value over temperature.

⎛

⎜

⎞

⎟

V_OUT− V_FB

R1 = R2×

V_FB

⎝

⎠

Where V_FBis the OUT feedback threshold

voltage equal to 1.222V.

To improve load transient response, add a

small ceramic (X5R, X7R or Y5V dielectric)

100nF feed forward capacitor in parallel with R1.

The feed forward capacitor is not required for

stable operation.

Example: For 2.5V Output

2.5V −1.222V

R1=

= 10.41kΩ

1.222V

⎛

⎞

⎜

⎟

10kΩ

⎝

⎠

You can select a standard 10.5kꢀ (±1%)

resistor for R1.

The following table lists the selected R1 values

for some typical output voltages:

Table 1—Adjustable Output Voltage R1 Values

R2 (Ω)

V_OUT(V)

1.25

1.5

1.8

R1 (Ω)

232

2.26k

4.75k

6.34k

10.5k

13k

2.5

2.8

10k

14.7k

16.9k

22.6k

30.9k

3.3

In Figures 3 and 4, C2 is added for an improved

transient response.

MP8801 Rev. 1.9

10/10/2011

www.MonolithicPower.com

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

1...3 4 567 8 9

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