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 HT7430
3.0V Negative Voltage Regulator
Features
* Low power consumption * Low voltage drop * Low temperature coefficient * High input voltage (up to -24V) * High output current : 100mA (Pd 250mW) * TO-92 and SOT-89 package
Applications
* Battery-powered equipment * Communication equipment * Audio/Video equipment
General Description
The HT7430 is a set of three-terminal high current high voltage regulator implemented in CMOS technology. They can deliver 100mA output current and allow an input voltage as high as -24V. CMOS technology ensures low voltage drop and low quiescent current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain variable voltages and currents.
Selection Table
Part No. HT7430 Output Voltage -3.0V Tolerance 5%
Rev. 1.10
1
January 21, 2003
HT7430
Block Diagram
V IN re f
Pin Assignment
T O -9 2 H T7430
. r o n t V ie w
S O T -8 9
VOUT GND
GND VOUT
GND
V IN
V IN
VOUT B o tto m V ie w
Pad Assignment
Pad Coordinates
Pad No. 1 2
(0 ,0 )
Unit: mm X Y -578.00 -545.50 -545.50
-571.75 175.75 592.25
3
1
2
3
Chip size: 1550 1562 (mm)2 * The IC substrate should be connected to VDD in the PCB layout artwork.
Absolute Maximum Ratings
Supply Voltage ............................VSS+0.3V to VSS-26V Power Consumption ......................................... 250mW Storage Temperature ............................-50C to 125C Operating Temperature...............................0C to 70C
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.
VOUT
V IN
GND
Rev. 1.10
2
January 21, 2003
HT7430
Electrical Characteristics
HT7430, -3.0V Output Type Symbol VOUT IOUT DVOUT VDIF ISS DVOUT DVIN VOUT VIN DVOUT DTa Parameter Output Voltage Tolerance Output Current Load Regulation Voltage Drop Current Consumption Line Regulation Input Voltage Temperature Coefficient Test Conditions VIN -5V -5V -5V 3/4 -5V 3/4 3/4 -5V Conditions IOUT=10mA 3/4 1mAIOUT50mA IOUT=1mA No load -4VVIN-12V IOUT=1mA 3/4 IOUT=10mA 0CApplication Circuits
Basic Circuit
V
IN
V
C1 10m.
IN
0 6%"!
GND
V
OUT
V C2 10m.
OUT
C om m on
S in g le p o in t G N D
C om m on
High Output Current Positive Voltage Regulator
T r1 V V R1 C1 10m. V V
IN
IN
0 6%"!
GND
OUT
OUT
C2 10m.
C om m on
S in g le p o in t G N D
C om m on
Rev. 1.10
3
January 21, 2003
HT7430
Short-Circuit Protection by Tr1
V
IN
Rs
T r1
V R1 C1 10m.
IN
H T7430
GND
V
OUT
V
OUT
C2 10m.
C om m on
S in g le p o in t G N D
C om m on
Circuit for Increasing Output Voltage
V V C1 10m. V V
IN
IN
H T7430
GND IS
S
OUT
OUT
C2 10m. V
XX
R1
R2
C om m on
S in g le p o in t G N D
C om m on
VOUT = VXX ( 1 + Circuit for Increasing Output Voltage
V V C1 10m.
R2 ) + ISS R2 R1
IN
IN
H T7430
GND
V
OUT
V
OUT
C2 10m.
V
XX
R1
IS
S
D1 C om m on S in g le p o in t G N D C om m on
VOUT = VXX + VD1 Constant Current Regulator
V
IN
V C1 10m.
IN
H T7430
GND IS
S
V
OUT
C2 10m. V
XX
R
A
IO
UT
R
L
C om m on
IOUT =
VXX + ISS RA
Rev. 1.10
4
January 21, 2003
HT7430
Dual Supply
IC 1 V
IN
V
IN
H T7430
GND
V
OUT
V C3 10m.
OUT
IC 2 V C1 10m. C om m on
IN
H T7430
GND
V
OUT
V C2 10m. R1
OUT
C om m on
Rev. 1.10
5
January 21, 2003
HT7430
Package Information
3-pin TO-92 Outline Dimensions
A
B
D C
E . G H
Symbol A B C D E F G H I a
Dimensions in mil Min. 170 170 500 11 90 45 45 130 8 4 Nom. 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 Max. 200 200 3/4 20 110 55 65 160 18 6
Rev. 1.10
6
January 21, 2003
HT7430
3-pin SOT-89 Outline Dimensions
A B
I J
E
C
D
G . H
Symbol A B C D E F G H I J
Dimensions in mil Min. 173 64 90 35 155 14 17 3/4 55 14 Nom. 3/4 3/4 3/4 3/4 3/4 3/4 3/4 59 3/4 3/4 Max. 181 72 102 47 167 19 22 3/4 63 17
Rev. 1.10
7
January 21, 2003
HT7430
Product Tape and Reel Specifications
TO-92 Reel Dimensions (Unit: mm)
P ackage U p, 30
. la t S id e U p
P ackage U p,
. la t S id e D o w n
58 88 360
43
Rev. 1.10
8
January 21, 2003
HT7430
Reel Dimensions
T2 D
A
B
C
T1
SOT-89 Symbol A B C D T1 T2 Description Reel Outer Diameter Reel Inner Diameter Spindle Hole Diameter Key Slit Width Space Between Flange Reel Thickness Dimensions in mm 1801.0 621.5 12.75+0.15 1.90.15 12.4+0.2 17-0.4
Rev. 1.10
9
January 21, 2003
HT7430
Carrier Tape Dimensions
P
,h
H1 H H0 l1
W2 W0 t W1 W
.1 P2 P0
.2 D0
TO-92 Symbol I1 P P0 P2 F1 F2 Dh W W0 W1 W2 H0 H1 D0 t H Note: Description Taped Lead Length Component Pitch Perforation Pitch Component to Perforation (Length Direction) Lead Spread Lead Spread Component Alignment Carrier Tape Width Hold-down Tape Width Perforation Position Hold-down Tape Position Lead Clinch Height Component Height Perforation Diameter Taped Lead Thickness Component Base Height Dimensions in mm (2.5) 12.71.0 12.70.3 6.350.4 2.5+0.4 -0.1 2.5+0.4 -0.1 00.1 18.0+1.0 -0.5 6.00.5 9.00.5 (0.5) 16.00.5 Less than 24.7 4.00.2 0.70.2 19.00.5
Thickness less than 0.380.05mm~0.5mm P0 Accumulated pitch tolerance: 1mm/20pitches. ( ) Bracketed figures are for consultation only
Rev. 1.10
10
January 21, 2003
HT7430
P0 D
E . W C
P1
t
B0
D1
P
K0 A0
SOT-89 Symbol W P E F D D1 P0 P1 A0 B0 K0 t C Description Carrier Tape Width Cavity Pitch Perforation Position Cavity to Perforation (Width Direction) Perforation Diameter Cavity Hole Diameter Perforation Pitch Cavity to Perforation (Length Direction) Cavity Length Cavity Width Cavity Depth Carrier Tape Thickness Cover Tape Width Dimensions in mm 12.0+0.3 -0.1 8.00.1 1.750.1 5.50.05 1.5+0.1 1.5+0.1 4.00.1 2.00.10 4.80.1 4.50.1 1.80.1 0.300.013 9.3
Rev. 1.10
11
January 21, 2003
HT7430
Holtek Semiconductor Inc. (Headquarters) No.3, Creation Rd. II, Science Park, Hsinchu, Taiwan Tel: 886-3-563-1999 Fax: 886-3-563-1189 http://www.holtek.com.tw Holtek Semiconductor Inc. (Taipei Sales Office) 4F-2, No. 3-2, YuanQu St., Nankang Software Park, Taipei 115, Taiwan Tel: 886-2-2655-7070 Fax: 886-2-2655-7373 Fax: 886-2-2655-7383 (International sales hotline) Holtek Semiconductor Inc. (Shanghai Sales Office) 7th Floor, Building 2, No.889, Yi Shan Rd., Shanghai, China 200233 Tel: 021-6485-5560 Fax: 021-6485-0313 http://www.holtek.com.cn Holtek Semiconductor Inc. (Shenzhen Sales Office) 5/F, Unit A, Productivity Building, Cross of Science M 3rd Road and Gaoxin M 2nd Road, Science Park, Nanshan District, Shenzhen, China 518057 Tel: 0755-8616-9908, 8616-9308 Fax: 0755-8616-9533 Holtek Semiconductor Inc. (Beijing Sales Office) Suite 1721, Jinyu Tower, A129 West Xuan Wu Men Street, Xicheng District, Beijing, China 100031 Tel: 010-6641-0030, 6641-7751, 6641-7752 Fax: 010-6641-0125 Holtek Semiconductor Inc. (Chengdu Sales Office) 709, Building 3, Champagne Plaza, No.97 Dongda Street, Chengdu, Sichuan, China 610016 Tel: 028-6653-6590 Fax: 028-6653-6591 Holmate Semiconductor, Inc. (North America Sales Office) 46729 Fremont Blvd., Fremont, CA 94538 Tel: 510-252-9880 Fax: 510-252-9885 http://www.holmate.com
Copyright O 2003 by HOLTEK SEMICONDUCTOR INC. The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek assumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable without further modification, nor recommends the use of its products for application that may present a risk to human life due to malfunction or otherwise. Holteks products are not authorized for use as critical components in life support devices or systems. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information, please visit our web site at http://www.holtek.com.tw.
Rev. 1.10
12
January 21, 2003


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