HOLTEK HT7350

HT73XX
Low Power Consumption LDO
Features
· Ultra low quiescent current: 4mA (typ.)
· Maximum output current: 250mA
· High input voltage (up to 12V)
· Low dropout voltage
· Output voltage:
· Low temperature coefficient
· TO-92, SOT-89 package
1.8V, 2.5V, 2.7V, 3.0V, 3.3V, 3.5V, 5.0V
· Output voltage accuracy: tolerance ±3%
Applications
· Battery-powered equipment
· Wireless Communication equipment
· Voltage regulator for microprocessor
· Audio/Video equipment
· Voltage regulator for LAN cards
General Description
The HT73XX series is a set of three-terminal, low power,
high voltage regulators implemented in CMOS technology. The series features extremely low quiescent current which is typically 4mA. They allow input voltages as
high as 12V. The device provides large current with a
significantly small dropout voltage.
The HT73XX consists of a high-precision voltage reference, an error correction circuit, and a current limited
output driver. They are available with several fixed output voltages ranging from 1.8V to 5.0V. CMOS technology ensures low dropout voltage and low current
consumption. Although designed primarily as fixed voltage regulators, these devices can be used with external
components to generate variable voltages and currents.
Selection Table
Part No.
Output Voltage
Tolerance
HT7318
1.8V
±3%
HT7325
2.5V
±3%
HT7327
2.7V
±3%
HT7330
3.0V
±3%
HT7333
3.3V
±3%
HT7335
3.5V
±3%
HT7350
5.0V
±3%
Package
TO-92-A
TO-92-B
SOT-89-A
Marking
73XX-A (for TO-92-A)
73XX-B (for TO-92-B)
73XX-A (for SOT-89)
Note: ²XX² stands for output voltages
Rev. 1.10
1
July 30, 2004
HT73XX
Block Diagram
V IN
V O U T
V re f
G N D
Pin Assignment
T O -9 2 -B
T O -9 2 -A
7 3 X X -A
S O T -8 9 -A
7 3 X X -B
F r o n t V ie w
F r o n t V ie w
7 3 X X -A
G N D
V IN
V O U T
V IN
B o tto m
G N D V O U T
V ie w
B o tto m
G N D
V IN
G N D
V IN
V O U T
V ie w
V O U T
Absolute Maximum Ratings
Supply Voltage ...........................VSS-0.3V to VSS+14V
Storage Temperature ...........................-50°C to 125°C
Power Consumption (*1) .................................. 500mW
Operating Temperature ..........................-40°C to 85°C
Power Consumption (*2) ...................................500mW
Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² 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.
*1: applied to TO-92
*2: applied to SOT-89
Rev. 1.10
2
July 30, 2004
HT73XX
Electrical Characteristics
HT7318, +1.8V Output Type
Symbol
Parameter
Ta=25°C
Test Conditions
Conditions
VIN
Min.
Typ.
Max.
Unit
VOUT
Output Voltage
2.8V
IOUT=40mA
1.746
1.8
1.854
V
IOUT(MAX)
Maximum Output Current
2.8V
VOUT³1.62V
150
¾
¾
mA
DVOUT*
Load Regulation
2.8V
1mA£IOUT£60mA
¾
45
90
mV
VDROP**
Dropout Voltage
¾
IOUT=40mA
¾
170
¾
mV
ISS
Quiescent Current
No load
¾
4
8
mA
IOUT=40mA
2.8V£VIN£12V
¾
0.2
0.3
%/V
¾
¾
12
V
¾
±0.7
¾
ppm/°C
D V
D V
O U T
´ V
IN
O U T
VIN
D V O
D T
U T
Line Regulation
¾
Input Voltage
¾
Temperature Coefficient
a
2.8V
2.8V
¾
IOUT=40mA
-40°C<Ta<85°C
HT7325, +2.5V Output Type
Symbol
Parameter
Ta=25°C
Test Conditions
VIN
Conditions
Min.
Typ.
Max.
Unit
VOUT
Output Voltage
3.5V
IOUT=40mA
2.425
2.5
2.575
V
IOUT(MAX)
Maximum Output Current
3.5V
VOUT³2.25V
180
¾
¾
mA
DVOUT*
Load Regulation
3.5V
1mA£IOUT£60mA
¾
45
90
mV
VDROP**
Dropout Voltage
¾
IOUT=40mA
¾
110
¾
mV
ISS
Quiescent Current
No load
¾
4
8
mA
IOUT=40mA
3.5V£VIN£12V
¾
0.2
0.3
%/V
¾
¾
12
V
¾
±0.7
¾
ppm/°C
D V
D V
O U T
´ V
IN
O U T
VIN
D V O
D T
U T
Line Regulation
¾
Input Voltage
¾
Temperature Coefficient
a
3.5V
3.5V
¾
IOUT=40mA
-40°C<Ta<85°C
HT7327, +2.7V Output Type
Symbol
Parameter
Ta=25°C
Test Conditions
Conditions
VIN
Min.
Typ.
Max.
Unit
VOUT
Output Voltage
3.7V
IOUT=40mA
2.619
2.7
2.781
V
IOUT(MAX)
Maximum Output Current
3.7V
VOUT³2.43V
200
¾
¾
mA
DVOUT*
Load Regulation
3.7V
1mA£IOUT£80mA
¾
45
90
mV
VDROP**
Dropout Voltage
¾
IOUT=40mA
¾
100
¾
mV
ISS
Quiescent Current
No load
¾
4
8
mA
IOUT=40mA
3.7V£VIN£12V
¾
0.2
0.3
%/V
¾
¾
12
V
¾
±0.7
¾
ppm/°C
D V
D V
O U T
´ V
IN
O U T
VIN
D V O
D T
U T
a
Rev. 1.10
3.7V
Line Regulation
¾
Input Voltage
¾
Temperature Coefficient
3.7V
¾
IOUT=40mA
-40°C<Ta<85°C
3
July 30, 2004
HT73XX
HT7330, +3.0V Output Type
Symbol
Parameter
Ta=25°C
Test Conditions
Conditions
VIN
Min.
Typ.
Max.
Unit
VOUT
Output Voltage
4V
IOUT=40mA
2.91
3
3.09
V
IOUT(MAX)
Maximum Output Current
4V
VOUT³2.7V
250
¾
¾
mA
DVOUT*
Load Regulation
4V
1mA£IOUT£80mA
¾
45
90
mV
VDROP**
Dropout Voltage
¾
IOUT=40mA
¾
95
¾
mV
ISS
Quiescent Current
4V
No load
¾
4
8
mA
Line Regulation
¾
IOUT=40mA
4V£VIN£12V
¾
0.2
0.3
%/V
Input Voltage
¾
¾
¾
¾
12
V
Temperature Coefficient
4V
¾
±0.7
¾
ppm/°C
D V
D V
O U T
´ V
IN
O U T
VIN
D V O
D T
U T
a
IOUT=40mA
-40°C<Ta<85°C
HT7333, +3.3V Output Type
Symbol
Parameter
Ta=25°C
Test Conditions
Conditions
VIN
Min.
Typ.
Max.
Unit
VOUT
Output Voltage
4.3V
IOUT=40mA
3.201
3.3
3.399
V
IOUT(MAX)
Maximum Output Current
4.3V
VOUT³2.97V
250
¾
¾
mA
DVOUT*
Load Regulation
4.3V
1mA£IOUT£80mA
¾
45
90
mV
VDROP**
Dropout Voltage
¾
IOUT=40mA
¾
90
¾
mV
ISS
Quiescent Current
No load
¾
4
8
mA
IOUT=40mA
4.3V£VIN£12V
¾
0.2
0.3
%/V
¾
¾
12
V
¾
±0.7
¾
ppm/°C
D V
D V
O U T
´ V
IN
O U T
VIN
D V O
D T
U T
Line Regulation
¾
Input Voltage
¾
Temperature Coefficient
a
4.3V
4.3V
¾
IOUT=40mA
-40°C<Ta<85°C
HT7335, +3.5V Output Type
Symbol
Parameter
Ta=25°C
Test Conditions
Conditions
VIN
Min.
Typ.
Max.
Unit
VOUT
Output Voltage
4.5V
IOUT=40mA
3.395
3.5
3.605
V
IOUT(MAX)
Maximum Output Current
4.5V
VOUT³3.15V
250
¾
¾
mA
DVOUT*
Load Regulation
4.5V
1mA£IOUT£80mA
¾
45
90
mV
VDROP**
Dropout Voltage
¾
IOUT=40mA
¾
80
¾
mV
ISS
Quiescent Current
No load
¾
4
8
mA
IOUT=40mA
4.5V£VIN£12V
¾
0.2
0.3
%/V
¾
¾
12
V
¾
±0.7
¾
ppm/°C
D V
D V
O U T
´ V
IN
O U T
VIN
D V O
D T
U T
a
Rev. 1.10
4.5V
Line Regulation
¾
Input Voltage
¾
Temperature Coefficient
4.5V
¾
IOUT=80mA
-40°C<Ta<85°C
4
July 30, 2004
HT73XX
HT7350, +5.0V Output Type
Symbol
Ta=25°C
Test Conditions
Parameter
Conditions
VIN
Min.
Typ.
Max.
Unit
VOUT
Output Voltage
6V
IOUT=40mA
4.85
5
5.15
V
IOUT(MAX)
Maximum Output Current
6V
VOUT³4.5V
250
¾
¾
mA
DVOUT*
Load Regulation
6V
1mA£IOUT£100mA
¾
45
90
mV
VDROP**
Dropout Voltage
¾
IOUT=40mA
¾
60
¾
mV
ISS
Quiescent Current
6V
No load
¾
4
8
mA
Line Regulation
¾
IOUT=40mA
6V£VIN£12V
¾
0.2
0.3
%/V
Input Voltage
¾
¾
¾
¾
12
V
Temperature Coefficient
6V
¾
±0.7
¾
ppm/°C
D V
D V
O U T
´ V
IN
O U T
VIN
D V O
D T
U T
a
Note:
IOUT=80mA
-40°C<Ta<85°C
²*² Regulation is measured at constant junction temperature, using pulsed ON time.
²**² Dropout is measured at constant junction temperature, using pulsed ON time, and the criterion is VOUT inside target value ±2%.
Application Circuits
V
IN
V
C 1
1 0 m F
C o m m o n
Rev. 1.10
IN
H T 7 3 X X
S e r ie s
V
V
O U T
O U T
C 2
1 0 m F
G N D
S in g le p o in t G N D
5
C o m m o n
July 30, 2004
HT73XX
Package Information
3-pin TO-92 Outline Dimensions
A
B
D
C
E
F
G
H
Symbol
A
Rev. 1.10
Dimensions in mil
Min.
Nom.
Max.
170
¾
200
B
170
¾
200
C
500
¾
¾
D
11
¾
20
E
90
¾
110
F
45
¾
55
G
45
¾
65
H
130
¾
160
I
8
¾
18
a
4°
¾
6°
6
July 30, 2004
HT73XX
3-pin SOT-89 Outline Dimensions
I
A
J
B
C
E
D
G
F
Symbol
Rev. 1.10
H
Dimensions in mil
Min.
Nom.
Max.
A
173
¾
181
B
64
¾
72
C
90
¾
102
D
35
¾
47
E
155
¾
167
F
14
¾
19
G
17
¾
22
H
¾
59
¾
I
55
¾
63
J
14
¾
17
7
July 30, 2004
HT73XX
Product Tape and Reel Specifications
TO-92 Reel Dimensions (Unit: mm)
P a c k a g e U p ,
F la t S id e U p
3 0
P a c k a g e U p ,
F la t S id e D o w n
4 3
5 8
8 8
3 6 0
Rev. 1.10
8
July 30, 2004
HT73XX
SOT-89 Reel Dimensions
D
T 2
A
C
B
T 1
SOT-89
Symbol
Description
Dimensions in mm
A
Reel Outer Diameter
180±1.0
B
Reel Inner Diameter
62±1.5
C
Spindle Hole Diameter
D
Key Slit Width
1.9±0.15
T1
Space Between Flange
12.4+0.2
T2
Reel Thickness
Rev. 1.10
12.75+0.15
17-0.4
9
July 30, 2004
HT73XX
TO-92 Carrier Tape Dimensions
P
D h
W 2
H 1
H
H 0
l1
W 0
t
W 1
W
F 1
F 2
D 0
P 2
P 0
TO-92
Symbol
Note:
Description
Dimensions in mm
I1
Taped Lead Length
(2.5)
P
Component Pitch
12.7±1.0
P0
Perforation Pitch
12.7±0.3
P2
Component to Perforation (Length Direction)
6.35±0.4
F1
Lead Spread
2.5+0.4
-0.1
F2
Lead Spread
2.5+0.4
-0.1
Dh
Component Alignment
W
Carrier Tape Width
18.0+1.0
-0.5
W0
Hold-down Tape Width
6.0±0.5
W1
Perforation Position
9.0±0.5
W2
Hold-down Tape Position
H0
Lead Clinch Height
16.0±0.5
H1
Component Height
Less than 24.7
D0
Perforation Diameter
4.0±0.2
t
Taped Lead Thickness
0.7±0.2
H
Component Base Height
19.0±0.5
0±0.1
(0.5)
Thickness less than 0.38±0.05mm~0.5mm
P0 Accumulated pitch tolerance: ±1mm/20pitches.
( ) Bracketed figures are for consultation only
Rev. 1.10
10
July 30, 2004
HT73XX
SOT-89 Carrier Tape Dimensions
P 0
D
P 1
t
E
F
W
C
D 1
B 0
P
K 0
A 0
SOT-89
Symbol
Description
Dimensions in mm
W
Carrier Tape Width
12.0+0.3
-0.1
P
Cavity Pitch
8.0±0.1
E
Perforation Position
1.75±0.1
F
Cavity to Perforation (Width Direction)
5.5±0.05
D
Perforation Diameter
1.5+0.1
D1
Cavity Hole Diameter
1.5+0.1
P0
Perforation Pitch
4.0±0.1
P1
Cavity to Perforation (Length Direction)
2.0±0.10
A0
Cavity Length
4.8±0.1
B0
Cavity Width
4.5±0.1
K0
Cavity Depth
1.8±0.1
t
Carrier Tape Thickness
C
Cover Tape Width
Rev. 1.10
0.30±0.013
9.3
11
July 30, 2004
HT73XX
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Copyright Ó 2004 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. Holtek¢s 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
July 30, 2004