HM7845PR [HMSEMI]

0.5A Low Power LDO;


型号：	HM7845PR
厂家：	H&M Semiconductor
描述：	0.5A Low Power LDO
文件：	总13页 (文件大小：1114K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

HM78XX

0.5A Low Power LDO

Features



Low voltage drop: 0.26V@100mA



Low Quiescent Current: 2.0uA

&VOUT=3.3V

Output voltage accuracy: tolerance ±2%

Built-in current limiter



High input voltage: 15V

Low temperature coefficient

Large Output Current: 500mA

SOT89,SOT89-5,SOT23-3 and SOT23-5

packages

Applications



Battery-powered equipment



GPS Receivers



Hand-Hold Equipment

Wireless LAN

General Description

The HM78XX series is a group of positive voltage

output, three-pin regulators, it provide a high

current even when the input/output voltage

differential is small. Low power consumption and

high accuracy is achieved through CMOS and

laser trimming technologies.

The HM78XX consists of a high-precision voltage

reference, an error amplification circuit, and a

current limited output driver. Load Transient

response has improved in comparison to the

existing series. SOT89, SOT89-5,SOT23-3 and

SOT23-5 packages are available.

Selection Table

Part No.

Output Voltage

2.8V

Package

Marking

HM7828XX

HM7830XX

HM7833XX

HM7836XX

HM7840XX

HM7845XX

HM7850XX

3.0V

SOT89

SOT89-5

SOT23-3

SOT23-5

3.3V

3.6V

Refer to Marking rule

4.0V

4.5V

5.0V

Order Information

HM78①②③④⑤

Designator Symbol Description

① ②

③

Integer Output Voltage(1.8~5.0V)

M5B

Standard

Package:SOT89

Package:SOT89-5

Package:SOT23-3

Package:SOT23-5

Package:SOT23-5B

RoHS / Pb Free

Halogen Free

④

⑤

Note:”①②” stands for output voltages. Other voltages can be specially customized

HM78XX

0.5A Low Power LDO

Block Diagram

HM78XX

0.5A Low Power LDO

Pin Assignment

SOT23-3 (Top View)

Table1: HM78XXMR series (SOT23-3 PKG)

PIN NO.

PIN NAME

GND

FUNCTION

GND pin

VIN

Input voltage pin

Output voltage pin

Mark

VOUT

SOT23-5 (Top View)

Table2: HM78XXM5R/HM78XXM5BR series (SOT23-5 PKG)

PIN NO.

PIN NAME

FUNCTION

SOT23-5

Sot23-5B

VIN

GND

Input voltage pin

GND pin

Mark

Enable pin

VOUT

Output voltage pin

1 2 3

SOT89 (Top View)

Table3: HM78XXPR series (SOT89 PKG)

PIN NO.

PIN NAME

GND

FUNCTION

GND pin

Mark

VIN

Input voltage pin

Output voltage pin

VOUT

1 2 3

SOT89-5 (Top View)

Table4: HM78XXP5R series (SOT89-5 PKG)

PIN NO.

PIN NAME

FUNCTION

Enable pin

VIN

Input voltage pin

Mark

1 2 3

GND

VOUT

GND pin

Output voltage pin

HM78XX

0.5A Low Power LDO

Marking Rule

（1）SOT23-3 and SOT23-5

SOT23-3 (Top View)

①②③④

List of Product Name vs. Product Code

Product Code

Product

Name

Product Code

Product

(1)

(2)

(3)

Name

(1)

(2)

(3)

HM7832

HM7833

HM7834

HM7835

HM7836

HM7837

HM7838

HM7839

HM7840

HM7841

HM7812

HM7813

HM7814

HM7815

HM7816

HM7817

HM7818

HM7819

HM7820

HM7821

HM7822

HM7823

HM7824

HM7825

HM7826

HM7827

HM7828

HM7829

HM7830

HM7831

HM7842

HM7843

HM7844

HM7845

HM7846

HM7847

HM7848

HM7849

HM7850

NOTE: SOT23-5,the last is Z SOT23-5B,the last is Y

HM78XX

0.5A Low Power LDO

（2）SOT89 and SOT89-5

SOT89 (Top View)

SOT89-5 (Top View)

①②③④

Product Code: E

Output Voltage Code:

Vout

1.5V

Code

Vout

2.7V

2.8V

2.9V

3.0V

3.1V

3.2V

3.3V

3.4V

3.5V

3.6V

3.7V

3.8V

Code

Vout

3.9V

4.0V

4.1V

4.2V

4.3V

4.4V

4.5V

4.6V

4.7V

4.8V

4.9V

5.0V

Code

1.6V

1.7V

1.8V

1.9V

2.0V

2.1V

2.2V

2.3V

2.4V

2.5V

2.6V

Data Code: XX

Note: The last two of them are based on the time of this product which is the first time into production, and the third is the

launch of this product ,it can be in 1 ~ 9 , which is expressed in "0" in October, in November with an "A", in December with

"B"; the fourth is of the launch of the product, such as expressed in "0" in 2010, in "3" in 2013. For example: EZ81 represents

HM7850PR product is first put into production in August in 2011.

HM78XX

0.5A Low Power LDO

Absolute Maximum Ratings

Supply Voltage ................................3.5V to 18V

Storage Temperature ..................-40℃ to 125℃

Operating Temperature .................-40℃ to 85℃

Note: These are stress ratings only. Stresses exceeding the range specified under “Absolute Maximum Ratings” may cause

substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the

specification is not implied and prolonged exposure to extreme conditions may affect device reliability.

Electrical Characteristics

HM78XX for any output voltage

（Ta=25℃）

Max. Unit

Parameter

Symbol

Conditions

Min.

Vout×0.98

Typ.

Vin=Vout+1V

Output Voltage

Vout

Vout×1.02

1.0mA≤Iout≤30mA

Output Current*1

Low dropout*2

Iout

Vin-Vout=1.5V

500

Vdrop

Refer to the next table

V_OUT

V_INV_OUT

4.3V≤Vin≤8V

Iout=100mA

Line Regulation

Load Regulation

0.75

0.9

%/V

Vin= Vout+1V

△Vout

1.0mA≤Iout≤100mA

Output voltage

Temperature

Coefficiency

Iout=30mA

V_OUT

Ta

±100

Ppm/℃

0℃≤Ta≤70℃

F=1KHz

PSRR

Vin=Vout+1V

Supply Current

Input Voltage

Iss1

Vin

3.5

Electrical Characteristics by Output Voltage：

Dropout Voltage Vdif（V）

Output Voltage

Vout(V)

Conditions

Iout=80 mA

Typ.

0.4

Max.

0.6

2.0 < Vout ≤ 2.8

2.8 < Vout ≤ 4.0

4.0 < Vout ≤ 5.0

2.8 < Vout ≤ 4.0

4.0 < Vout ≤ 5.0

3.0 < Vout ≤ 4.0

4.0 < Vout ≤ 5.0

0.26

0.23

0.53

0.42

1.5

0.46

0.42

0.82

0.76

1.8

Iout=100 mA

Iout=200 mA

Iout=500 mA

1.2

1.5

HM78XX

0.5A Low Power LDO

Typical Application

HM78XX

VOUT

VIN

VOUT

Cin

＋

Cout

10uF

GND

10uF

GND

Note1: Cin=Cout=10uF. (10uF Electrolytic capacitor is recommended).

Note2: If the input and output capacitors are ceramic, add a resistor at the input, as follows.

HM78XX

VOUT

VIN

VOUT

Cin

Cout

10uF

GND

10uF

GND

Note: Re= (1.2~1.8)Ω.

VOUT

VIN

1 VIN 5 VOUT

Cout

10uF

Cin

10uF

3 CE

2 GND

0.1uF

GND

Note1:Input capacitor C_IN=10uF.

Note2:Ouput capacitor C_OUT=10uF/6.8uF(1uF Tantalum capacitor or 6.8uF ceramic capacitor is

recommended).

Note3:The CE port is recommended to connect the current limiting resistor Re. The recommended

resistance is 10K~47K. When the input voltage is larger than or equal to 12V, it is recommended to add a

0.01uF capacitor Ce.

HM78XX

0.5A Low Power LDO

Typical Performance Characteristics

HM78XX

0.5A Low Power LDO

（3） Input Transient Response

VIN=12V~5V

VOUT=4.0V

IOUT=50mA

VIN

VIN=5V~12V

VOUT=4.0V

IOUT=50mA

VIN

VOUT

（4） Load Transient Response

VIN=6.0V

VOUT=4.0V

IOUT

VOUT=4.0V

IOUT

IOUT=1mA~300mA

IOUT=300mA~1mA

VOUT

HM78XX

0.5A Low Power LDO

Package Information

3-pin SOT89 Outline Dimensions

HM78XX

0.5A Low Power LDO

SOT89-5 Outline Dimensions

HM78XX

0.5A Low Power LDO

3-pin SOT23-3 Outline Dimensions

HM78XX

0.5A Low Power LDO

SOT23-5 Outline Dimensions

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