3 Terminal 0.5A Positive Voltage Regulator - Unisonic
Description
UTC 78DXXA
LINEAR INTEGRATED CIRCUIT
3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR
DESCRIPTION
The UTC 78DXXA family is monolithic fixed voltage regulator integrated circuit.
They are suitable for applications that required supply current up to 1 A.
FEATURES
*Peak output current up to 1 A *Fixed output voltage of 3.
3V,4.
7V,5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V, 18V and 24V available *Thermal overload shutdown protection *Short circuit current limiting *Output transistor SOA protection
1
TO-252
1:Input
2:GND
3:Output
TEST CIRCUIT
IN P U T
1
R 13 T 10 R 17 T8 R9 T9 Z2 T 12 T 14 R 19 R 18 R 12 R 11 R 10
R 14 T 11 T5 T6
T 13
O U TP U T
3
R8 R 15 T4 Z1 T 15 R5
R4 R6
T7
R 16
R1
R2
C1 T3
R7
T1
T2
R3
GND
2
UTC
UNISONIC TECHNOLOGIES CO.
, LTD.
1
QW-R101-010,E
UTC 78DXXA
PARAMETER
Input voltage (for Vo=3.
3~18V) (for Vo=24V) Output Current
LINEAR INTEGRATED CIRCUIT
SYMBOL
VI Io PD Topr Tstg Internally
ABSOLUTE MAXIMUM RATINGS ( Operating temperature range applies unless otherwise specified )
RATING
35 40 1 Limited -20 ~ +150 -55 ~ +150
UNIT
V V A W °C °C
Power Dissipation Operating Junction Temperature Range Storage Temperature Range
UTC 78D33A ELECTRICAL CHARACTERISTICS
( VI=5.
8V, Io=0.
5A, Tj= 0°C - 125°C, C1=0.
33uF, Co=0.
1uF, unless otherwise specified )(Note 1)
PARAMETER
Output Voltage
SYMBOL
Vo
TEST CONDITIONS
Tj=25°C, IO=5mA - 1.
0A VI =5.
8V to 18.
3V, IO=5mA - 1.
0A, PD≦15W Tj=25°C,IO=5mA - 1.
0A Tj=25°C,IO=0.
25A - 0.
75A VI =5.
8V to 18.
3V,Tj=25°C VI =5.
8V to 18.
3V,Tj=25°C,Io=1.
0A Tj=25°C, IO≦1.
0A VI =5.
8V to 18.
3V IO=5mA - 1.
0A 10Hz≦f≦100kHz Io=5mA VI=6.
3V–16.
3V,f=120Hz,Tj=25°C Tj=25°C VI=35V, Tj=25°C Tj=25°C
MIN
3.
168 3.
135
TYP
3.
30
MAX
3.
432 3.
465 33 17 33 33 8.
0 1.
0 0.
5
UNIT
V V mV mV mV mV mA mA mA µV mV/°C dB A mA V
Load Regulation Line regulation Quiescent Current Quiescent Current Change Output Noise Voltage Temperature coefficient of Vo Ripple Rejection Peak Output Current Short-Circuit Current Dropout Voltage
∆Vo ∆Vo Iq ∆Iq VN ∆Vo/...
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