HT1015-1
1.5V Low Power LDO
Features
·
Low power consumption
·
Low voltage drop
·
Low temperature coefficient
·
Wide operating voltage (12V max.)
·
TO-92, SOT-89 and SOT-25 package
Applications
·
Battery-powered equipment
·
Communication equipment
·
Audio/Video equipment
General Description
The HT1015-1 is a three-terminal low power voltage regu-
lator implemented in CMOS technology. It is available with
a fixed output voltage at 1.5V. CMOS technology ensures
low voltage drop and low quiescent current.
Although designed primarily as a fixed voltage regulator,
this device can be used with external components to ob-
tain variable voltages and currents.
Block Diagram
VIN
VOUT
Vref
GND
Pin Assignment
T O -9 2
S O T -8 9
S O T -2 5
N C
1 0 1 5 -1
F r o n t V ie w
1 0 1 5 -1
0 1 5 1
T o p V ie w
N C
G N D
G N D
V IN
V O U T
B o tto m
V ie w
G N D
V IN
V O U T
G N D
V IN
V O U T
V IN
V O U T
G N D
V IN
V O U T
Note:
For lead free devices, TO-92 package will add a
²#²
mark at the end of the date code, whereas SOT-89 and
SOT-25 packages will add a
²#²
mark at the end of the marking.
Rev. 1.10
1
March 13, 2006
HT1015-1
Absolute Maximum Ratings
Supply Voltage ............................V
SS
-0.3V
to V
SS
+13V
Power Consumption (*1) ...................................200mW
Power Consumption (*2) ...................................150mW
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 reliabil-
ity.
*1: applied to SOT-89 and TO-92
*2: applied to SOT-25
Storage Temperature ............................-50°C to 125°C
Operating Temperature...........................-40°C to 85°C
Electrical Characteristics
Symbol
V
OUT
I
OUT
DV
OUT
V
DIF
I
SS
D
V
OUT
D
V
IN
xV
OUT
V
IN
D
V
OUT
D
Ta
Parameter
Output Voltage Tolerance
Output Current
Load Regulation
Voltage Drop
Current Consumption
Line Regulation
Input Voltage
Temperature Coefficient
Test Conditions
V
IN
3.5V
3.5V
3.5V
¾
3.5V
¾
¾
3.5V
Conditions
I
OUT
=0.5mA
¾
1mA£I
OUT
£7mA
I
OUT
=0.5mA
No load
2.5V£V
IN
£12V
I
OUT
=0.5mA
¾
I
OUT
=0.5mA
-40°C~85°C
Min.
1.455
7.0
¾
¾
¾
¾
¾
¾
Typ.
1.5
18
15
250
2.2
0.1
¾
-0.75
Max.
1.545
¾
¾
¾
5.0
¾
12
¾
Ta=25°C
Unit
V
mA
mV
mV
mA
%/V
V
mV/°C
Rev. 1.10
2
March 13, 2006
HT1015-1
Application Circuits
Basic Circuit
V
IN
V
C 1
1 0
m
F
IN
H T 1 0 1 5 -1
G N D
V
O U T
V
O U T
C 2
1 0
m
F
C o m m o n
S in g le p o in t G N D
C o m m o n
High Output Current Positive Voltage Regulator
T r1
V
IN
V
R 1
C 1
1 0
m
F
IN
H T 1 0 1 5 -1
G N D
V
O U T
V
O U T
C 2
1 0
m
F
C o m m o n
S in g le p o in t G N D
C o m m o n
Short-Circuit Protection Using External Transistors
V
IN
R s
T r2
T r1
V
R 1
C 1
1 0
m
F
IN
H T 1 0 1 5 -1
G N D
V
O U T
V
O U T
C 2
1 0
m
F
C o m m o n
S in g le p o in t G N D
C o m m o n
Increased Output Voltage Circuits
V
IN
V
IN
H T 1 0 1 5 -1
G N D
V
O U T
V
O U T 1
C 1
1 0
m
F
I
S
S
V
C 2
1 0
m
F
X X
R 1
R 2
C o m m o n
S in g le p o in t G N D
C o m m o n
V
OUT1
= V
XX
( 1 +
R2
) + I
SS
R2
R1
Rev. 1.10
3
March 13, 2006
HT1015-1
V
V
IN
V
IN
H T 1 0 1 5 -1
G N D
I
S
S
V
O U T
O U T 1
C 1
1 0
m
F
C 2
1 0
m
F
V
D 1
V
X X
R 1
D 1
C o m m o n
S in g le p o in t G N D
C o m m o n
V
OUT1
= V
XX
+ V
D1
Constant Current Regulator
V
IN
V
IN
H T 1 0 1 5 -1
G N D
V
O U T
C 1
1 0
m
F
I
S
S
C 2 V
1 0
m
F
X X
R
A
I
O
U T
R
L
C o m m o n
I
OUT
=
Dual Supply
V
XX
+ I
SS
R
A
IC 1
V
IN
V
IN
H T 1 0 1 5 -1
G N D
V
O U T
V
IC 2
V
IN
O U T 1
C 3
1 0
m
F
V
H T 1 0 1 5 -1
G N D
V
O U T
O U T 2
C 1
1 0
m
F
C o m m o n
C 2
1 0
m
F
R 1
C o m m o n
Rev. 1.10
4
March 13, 2006
HT1015-1
Package Information
3-pin TO-92 Outline Dimensions
A
B
D
C
E
F
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.
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
Max.
200
200
¾
20
110
55
65
160
18
6°
Rev. 1.10
5
March 13, 2006
