SPX431L Sipexoration, SPX431L Datasheet

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SPX431L

Manufacturer Part Number
SPX431L
Description
Low Voltage Precision Adjustable Shunt Regulator
Manufacturer
Sipexoration
Datasheet

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FEATURES
• Tight Tolerance.................................................. 0.5% @ 10mA
• Wide Operating Range..................................... 1mA to 100mA
• Low Extended Temperature Range ....................0° ° ° ° C to 105° ° ° ° C
• Low Temperature Coefficient .................................30 ppm/° ° ° ° C
• Offered in TO-92, SOT-89, SOT-23-3 and SO-8
• Improved replacement in performance of AS431 & TL431
• Low Cost Solution
PRODUCT DESCRIPTION
The SPX431L is a 3-terminal Adjustable Shunt Voltage Regulator providing a highly accurate bandgap reference. SPX431L acts as an
open-loop error amplifier with a 2.5V temperature compensation reference. The SPX431L thermal stability, wide operating current
(100mA) and temperature range (0°C to 105°C) makes it suitable for all variety of applications that are looking for a low cost solution
with high performance.
The output voltage may be adjusted to any value between V
industrial temperature range of 0°C to 105°C. The SPX431L is available in TO-92, SOT-89, SOT-23-3 and SO-8 packages.
REFERENCE
(R)
2.5V
+
-
CATHODE (K)
ANODE (A)
REF
and 20V with 2 external resistors. The SPX431L is operating in full
CATHODE
ANODE
ANODE
N/C
8-Pin Surface Mount (S)
SOT-23-3 (M)
N/C
APPLICATIONS
• Battery Operating Equipment
• Adjustable Supplies
• Switching Power Supplies
• Error Amplifiers
• Single Supply Amplifier
• Monitors/ VCR/ TV
• Personal Computers
1
2
3
4
SPX431L
Top View
SPX431L
2
Top View
ANODE
PIN CONNECTIONS
Adjustable Shunt Regulator
1
3
8
7
6
5
CATHODE
Low Voltage Precision
REF
ANODE
ANODE
N/C
REF
REF
Bottom View
SOT-89 (M1)
1
TO-92 (N)
1
Top View
SPX431L
ANODE
SPX431L
ANODE
2
2
3
3
Rev. 10/30/00
CATHODE
CATHODE

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SPX431L Summary of contents

Page 1

... Low Cost Solution PRODUCT DESCRIPTION The SPX431L is a 3-terminal Adjustable Shunt Voltage Regulator providing a highly accurate bandgap reference. SPX431L acts as an open-loop error amplifier with a 2.5V temperature compensation reference. The SPX431L thermal stability, wide operating current (100mA) and temperature range (0°C to 105°C) makes it suitable for all variety of applications that are looking for a low cost solution with high performance ...

Page 2

... REF SPX431L SPX431LC Min Typ Max Min 2.470 2.495 2.520 2.445 -2.7 -1.0 -2.7 -2 -0.4 0.3 -2 0.7 4 0.4 1.2 0.4 1 0.04 1 0.15 0.5 SPX431L Units °C °C °C Typical Derating 6.3 mW/°C 1.7 mW/°C 5.7 mW/°C 9.1 mW/°C Unit Typ Max 2.495 2.545 V -1.0 mV/V -0.4 0.3 0.7 4 µA 0.4 1.2 µ ...

Page 3

... REF (V ) REF R 2 TEST CIRCUIT 2 ∆V (mV) REF TC in mV/°C = ∆ ∆V REF ∆V at 25°C REF TC in mV/°C = ∆T ( ∆V REF ∆V at 25°C REF TC in ppm/° 1G-39 TEST CIRCUIT 3 SPX431L ) x 100 ∆ (OFF) 1G-40 Rev. 10/30/00 ...

Page 4

... Figure 4 150 125 100 -25 -50 -75 -100 -2 2.0 3.0 2.53 2.52 2.51 2.50 2.49 2.48 2.47 2.46 2. 120 -60 SPX431L High Current Operating Characteristics REF Temperature Range: - 0°C to 105 ° Cathode Voltage (V) KA Figure 3 Reference Voltage vs. Ambient Temperature REF 2.500 °C REF - ...

Page 5

... R2 = ∞ -10 -20 -30 -40 - 120 0.150 0.125 0.100 0.075 0.050 0.025 0.0 - 100 k SPX431L Reference Voltage Line Regulation 0 °C 25 °C 75 °C 105 ° Cathode Voltage (V) KA Figure 7 Low Frequency Dynamic Output Impedance ...

Page 6

... Temperature Range: -0°C to 105 ° 100 Frequency (Hz) 100 1.0 0.1 0. Figure 11 SPX431L Dynamic Output Impedance ° 100 100 Frequency (Hz) Figure µF 8. OUT 230 Ω ...

Page 7

... STABILITY REGION ° Load Capacitance (pF 100 kHz Figure Figure 13 SPX431L INPUT MONITOR 220 Ω OUT 50 Ω GND 150 Ω Rev. 10/30/00 ...

Page 8

... Ordering No SPX431LM SPX431LAM SPX431LCM SPX431LM1 SPX431LAM1 SPX431LCM SPX431LN SPX431LAN SPX431LCN SPX431LS SPX431LAS SPX431LCS Corporation SIGNAL PROCESSING EXCELLENCE Sipex Corporation Headquarters and Main Offices: 22 Linnell Circle Billerica, MA 01821 TEL: (978) 667-8700 FAX: (978) 670-9001 e-mail: sales@sipex.com 233 South Hillview Drive Milpitas, CA 95035 ...

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