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ZRT025

2.5V LOW POWERPRECISION REFERENCE SOURCE

DESCRIPTION

The ZRT025 is a m onolithic integrated circuit providing

a precise stable reference voltage of 2.5V at 500␮A.

The circuit features a knee current of 150␮A and

operation over a wide range of tem peratures and

currents.

Th e ZRT0 2 5 is a v a ila b le fo r s u r fa c e m o u n t

applications. This product offers a trim facility whereby

the output voltage can be adjusted as shown in Fig.1.

This facility is used when com pensating for system

errors or setting the reference output to a particular

value. When the trim facility is not used, the pin should

be left open circuit.

SOT223

FEATURES

• Trim m able output

• Excellent tem perature stability

• Low output noise figure

• Available in two tem perature ranges

• 1 and 2% initial voltage tolerance versions available

• No external stabilizing capacitor required in m ost cases

• Low slope resistance

• No derating required at low tem peratures

• SOT223 package

SOT223

Package suffix G

Top view (pin 4 floating or

connected to pin 2)

ORDERING INFORMATION

DEVICE

TOL% OPERATING TEMP °C

PARTMARK

REEL

SIZE

TAPE

WIDTH

QUANTITY

PER REEL

ZRT025GC2TA

ZRT025GC1TA

ZRT025GA1TA

2

1

-40 to 85

-55 to 125

ZRT025C2

ZRT025C1

ZRT025A1

7”

12m m

1,000 units

A grade

C grade

-55 to 125°C

-40 to 85°C

ISSUE 4 - DECEMBER 2003

S E M IC O N D U C T O R S

1

ZRT025

ABSOLUTE MAXIMUM RATINGS

PARAMETER

S YMBOL

LIMIT

UNIT

(1)

Re ve rs e cu rre n t

75

m A

Op e ra tin g te m p e ra tu re :

A g ra d e

T

OMP

S TG

-55 to 125

-40 to 85

-55 to 150

°C

C g ra d e

S to ra g e te m p e ra tu re

T

⁽¹⁾Above 72°C this figure should be linearly derated to 25m A at 125°C

POWER DISSIPATION (at T

= 25°C unless otherwise stated)

am b

PACKAGE

VALUE

UNIT

S OT223

2

W

TEMPERATURE DEPENDENT ELECTRICAL CHARACTERISTICS

S YMBOL PARAMETER

INITIAL

VOLTAGE

TOLERANCE %

GRADE A

-55 TO 125°C

GRADE C

-40 TO 85°C

UNIT

m V

Ou tp u t vo lta g e ch a n g e o ve r

re le va n t te m p e ra tu re

ra n g e (S e e n o te (a ))

1 & 2

6.8

22.5

50.0

2.7

8.8

∆V

R

T V

Ou tp u t vo lta g e te m p e ra tu re

co e fficie n t (S e e n o te (b ))

15.0

50.0

ppm /°C

C

R

ELECTRICAL CHARACTERISTICS (at T

= 25°C unless otherwise stated)

am b

S YMBOL

PARAMETER

CONDITIONS

MIN.

TYP. MAX.

UNIT

V

Ou tp u t vo lta g e

R

1% to le ra n ce (A1,C1)

I =500␮A

2.475 2.500 2.525

V

R

2% to le ra n ce (C2)

2.450 2.500 2.550

V

%

⌬V

Ou tp u t vo lta g e a d ju s tm e n t ra n g e

R =100k⍀

Ϯ5

TRIM

T

T ⌬V

Ch a n g e in T V w ith o u tp u t a d ju s tm e n t

2.5

ppm /°C/%

m A

C

TRIM

C R

I

Op e ra tin g cu rre n t ra n g e

Tu rn -o n tim e Tu rn -o ff tim e

0.15

75

R

t

10

0.3

␮s

o n

R =1k⍀

L

o ff

e

Ou tp u t vo lta g e n o is e (o ve r th e ra n g e 0.1 Pe a k to p e a k

50

␮V

n p -p

to 10Hz)

m e a s u re m e n t

R

S lo p e re s is ta n ce

I = 0.5m A to

R

0.85

2.0

⍀

S

5m A

(S e e n o te (c))

ISSUE 4 - DECEMBER 2003

S E M IC O N D U C T O R S

2

ZRT025

TYPICAL CHARACTERISTICS

NOTES:

(a) Output change w ith tem perature

(c) Slope resistance (RS)

Th e a b s o lu te m a xim u m d iffe re n ce b e tw e e n th e The slope resistance is defined as :

m axim um output voltage and the m inim um output

voltage over the specified tem perature range

changeinV_R

RS =

specificcurrentrange

⌬V =V

-V

R

m ax m in

⌬I=5-0.5=4.5m A (typically)

(d) Line regulation

(b) Output tem perature coefficient (T V )

C

R

The ratio of the output change with tem perature to the

specified tem perature range expressed in ppm /°C

The ratio of change in output voltage to the change in

input voltage producing it.

∆V_Rx10 ⁶

V_Rx∆T

T_CV_R

=

ppm °C

R_Sx100

% / V

V_RxR_SOURCE

⌬T= Full tem perature range

ISSUE 4 - DECEMBER 2003

S E M IC O N D U C T O R S

3

ZRT025

SCHEMATIC DIAGRAM

Figure 1:

This circuit will allow the reference to be trim m ed over

a wide range. The device is specified over a Ϯ5% trim

range.

ISSUE 4 - DECEMBER 2003

S E M IC O N D U C T O R S

4

ZRT025

PACKAGE OUTLINE

Controlling dim ensions are in m illim eters. Approxim ate conversions are given in inches

PACKAGE DIMENSIONS

Millim eters

Inches

Millim eters

Min Max

2.30 BSC

4.60 BSC

Inches

Min Max

DIM

Min

–

Max

Min

Max

0.071

0.004

0.033

0.122

0.013

0.264

A

A1

b

1.80

0.10

0.84

3.10

0.33

6.70

–

e

0.0905 BSC

0.181 BSC

0.02

0.66

2.90

0.23

6.30

0.0008

0.026

0.114

0.009

0.248

e1

E

6.70

7.30

3.70

–

0.264

0.287

b2

C

E1

L

3.30

0.90

–

0.130

0.0355

–

0.146

–

D

–

Europe

Am ericas

Asia Pacific

Zetex plc

Zetex Gm bH

Zetex Inc

Zetex (Asia) Ltd

Fields New Road

Chadderton

Streitfeldstraß e 19

D-81673 München

700 Veterans Mem orial Hwy

Hauppauge, NY 11788

3701-04 Metroplaza Tower 1

Hing Fong Road

Oldham , OL9 8NP

United Kingdom

Kwai Fong

Hong Kong

Germ any

USA

Telephone (44) 161 622 4444

Fax: (44) 161 622 4446

hq@zetex.com

Telefon: (49) 89 45 49 49 0

Fax: (49) 89 45 49 49 49

europe.sales@zetex.com

Telephone: (1) 631 360 2222

Fax: (1) 631 360 8222

usa.sales@zetex.com

Telephone: (852) 26100 611

Fax: (852) 24250 494

asia.sales@zetex.com

Th e s e o ffice s a re s u p p o rte d b y a g e n ts a n d d is trib u to rs in m a jo r co u n trie s w o rld -w id e .

This publication is issued to provide outline inform ation only which (unless agreed by the Com pany in writing) m ay not be used, applied or reproduced

for any purpose or form part of any order or contract or be regarded as a representation relating to the products or services concerned. The Com pany

reserves the right to alter without notice the specification, design, price or conditions of supply of any product or service.

For the latest product inform ation, log on to w w w .zetex.com

ISSUE 4 - DECEMBER 2003

S E M IC O N D U C T O R S

5

型号:	ZRT025GC2TC
是否Rohs认证：	符合
生命周期：	Transferred
包装说明：	SOT-223, 4 PIN
Reach Compliance Code：	not_compliant
ECCN代码：	EAR99
HTS代码：	8542.39.00.01
风险等级：	5.2
模拟集成电路 - 其他类型：	THREE TERMINAL VOLTAGE REFERENCE
JESD-30 代码：	R-PDSO-G4
JESD-609代码：	e3
长度：	6.5 mm
湿度敏感等级：	1
功能数量：	1
输出次数：	1
端子数量：	4
最高工作温度：	70 °C
最低工作温度：
最大输出电压：	2.55 V
最小输出电压：	2.45 V
标称输出电压：	2.5 V
封装主体材料：	PLASTIC/EPOXY
封装代码：	LSOP
封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, LOW PROFILE
峰值回流温度（摄氏度）：	260
认证状态：	Not Qualified
座面最大高度：	1.7 mm
最大供电电流 (Isup)：	75 mA
表面贴装：	YES
最大电压温度系数：	50 ppm/ °C
温度等级：	COMMERCIAL
端子面层：	MATTE TIN
端子形式：	GULL WING
端子节距：	2.3 mm
端子位置：	DUAL
处于峰值回流温度下的最长时间：	40
微调/可调输出：	YES
宽度：	3.5 mm
Base Number Matches：	1

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