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DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
µPC1093
ADJUSTABLE PRECISION SHUNT REGULATORS
DESCRIPTION
The µPC1093 are adjustable precision shunt regulators with guaranteed thermal stability. The output voltage can
be set to any value between reference voltage (2.495 V) and 36 V by two external resistors.
These ICs can apply to error amplifier of switching regulators.
FEATURES
• High Accuracy
• Low Temperature Coefficient
• Adjustable Output Voltage by two External Resistors
• Low Dynamic Impedance
VREF = 2.495 V ± 2 %
∆VREF/∆T ≤ 100 ppm/°C
VREF ≤ VO ≤ 36 V
| ZKA | = 0.1 ΩTYP.
ORDERING INFORMATION
Part Number
Package
µPC1093J
µPC1093G
µPC1093T
µPC1093TA
3-pin plastic SIP (TO-92)
8-pin plastic SOP (225 mil)
Power mini mold (SOT-89)
5-pin plastic mini mold (SC-74A)
The information in this document is subject to change without notice.
Document No. G10634EJ5V0DS00 (5th edition)
(Previous No. IC-1791)
Date Published September 1998 N CP(K)
Printed in Japan
The mark shows major revised points.
©
1986
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TYPICAL CHARACTERISTICS
0.8
µPC1093J
0.6
µPC1093G
0.4
µPC1093T
Pd vs TA ( I )
180 °C/W
260 °C/W
0.2
µPC1093TA
315 °C/W
695 °C/W
0 20 40 60 80 100
TA - Operating Ambient Temperature - °C
VREF vs TA
20
IK = 10 mA
VKA = VREF
10
0
–10
–20
–30
–25 0
25 50 75 100
TA - Operating Ambient Temperature - °C
VREF vs VKA
20
TA = 25 °C
IK = 10 mA
10
0
–10
–20
–30
0
10 20 30
VKA - Cathode Voltage - V
40
µPC1093
Pd vs TA ( II )
(with 16 cm2×0.7 mm ceramic substrate)
2.0
µPC1093T
62.5 °C/W
1.6
1.2
0.8
µPC1093TA
245 °C/W
0.4
(with 75 mm2×0.7 mm ceramic
substrate)
0 20 40 60 80 100
TA - Operating Ambient Temperature - °C
IK vs VKA ( I )
1.2
TA = 25 °C
VKA = VREF
1.0
0.8
0.6
0.4
0.2
0 12
VKA - Cathode Voltage - V
IK vs VKA ( II )
150
TA = 25 °C
VKA = VREF
100
3
50
0
–50
–100
–2
–1 0 1 2
VKA - Cathode Voltage - V
3
5