SG140-35IG MICROSEMI [Microsemi Corporation], SG140-35IG Datasheet

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SG140-35IG

Manufacturer Part Number
SG140-35IG
Description
positve fixed voltage regulator
Manufacturer
MICROSEMI [Microsemi Corporation]
Datasheet
2/90 Rev 1.4 6/97
Copyright  1997
DESCRIPTION
The SG140A/140 series of positive regulators offer self contained, fixed-voltage
capability with up to 1.5A of load current and input voltage up to 50V (SG140A series
only).
These units feature a unique on-chip trimming system to set the output voltages to
within ±1.5% of nominal on the SG140A series and ±2.0% on the SG140 series. The
SG140A versions also offer much improved line and load regulation characteristics.
Utilizing an improved Bandgap reference design, problems have been eliminated that
are normally associated with the Zener Diode references, such as drift in output voltage
and large changes in the line and load regulation.
All protective features of thermal shutdown, current limiting, and safe-area control have
been designed into these units and since these regulators require only a small output
capacitor for satisfactory performance, ease of application is assured.
Although designed as fixed-voltage regulators, the output voltage can be increased
through the use of a simple voltage divider. The low quiescent drain current of the
device insures good regulation when this method is used.
Product is available in hermetically sealed TO-257 (isolated), TO-3, TO-66, and
TO-39 power packages.
SCHEMATIC DIAGRAM
1
FEATURES
• • • • • Output voltage set internally to
• • • • • Input voltage reange to 50V max.
• • • • • Two volt input-output differential
• • • • • Bandgap reference voltage
• • • • • Excellent line and load regulation
• • • • • Foldback current limiting
• • • • • Thermal overload protection
• • • • • Voltages available - 5V, 12V, 15V
• • • • • Voltages Not Recommended For
HIGH RELIABILITY FEATURES
♦ ♦ ♦ ♦ ♦ Available to MIL-STD - 883
♦ ♦ ♦ ♦ ♦ Radiation data available
♦ ♦ ♦ ♦ ♦ LMI level "S" processing available
± ± ± ± ± 1.5% on SG140A
on SG140A
New Designs - 6V, 8V, 18V, 24V
- SG140A/140
IN IN
∞ ∞ ∞ ∞ ∞
∞ ∞ ∞ ∞ ∞ 

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SG140-35IG Summary of contents

Page 1

... DESCRIPTION The SG140A/140 series of positive regulators offer self contained, fixed-voltage capability with up to 1.5A of load current and input voltage up to 50V (SG140A series only). These units feature a unique on-chip trimming system to set the output voltages to within ±1.5% of nominal on the SG140A series and ±2.0% on the SG140 series. The SG140A versions also offer much improved line and load regulation characteristics ...

Page 2

... Note also from Figure 1, that maximum load current is reduced at high voltages. The 50V input rating of the SG140A series refers to ability to withstnd high line or transient conditions without damage. Since the regulator's maximum current capability is reduced, the output may fall out of regulation at high input voltages under nominal loading ...

Page 3

CHARACTERISTIC CURVES (continued) FIGURE 2. MINIMUM INPUT - OUTPUT VOLTAGE VS. LOAD CURRENT APPLICATIONS FIGURE 5 - FIXED OUITPUT REGULATOR FIGURE 7 - HIGH OUTPUT CIRRENT, SHORT CIRCUIT PROTECTED 2/90 Rev 1.4 6/97 Copyright  1997 FIGURE 3. RIPPLE REJECTION ...

Page 4

... ELECTRICAL CHARACTERISTICS SG140A - 5 (Unless otherwise specified, these specifications apply over full operating ambient temperatures for SG140A-05 with -55°C ≤ 1.0A 33µ 0.1µF and are applicable for the K, R, and IG - Power package - only. Low duty cycle pulse testing techniques are used ...

Page 5

... Thermal Shutdown I = 5mA O SG140 - 8 (Unless otherwise specified, these specifications apply over full operating ambient temperatures for SG140-08 with -55°C ≤ 500mA 33µ 0.1µF and are applicable for the K, R, and IG - Power package - only. Low duty cycle pulse testing techniques are ...

Page 6

... ELECTRICAL CHARACTERISTICS SG140 (Unless otherwise specified, these specifications apply over full operating ambient temperatures for SG140A -12 with -55°C ≤ 1.0A 33µ 0.1µF and are applicable for the K, R, and IG - Power package - only. Low duty cycle pulse testing techniques are used ...

Page 7

... ELECTRICAL CHARACTERISTICS SG140 (Unless otherwise specified, these specifications apply over full operating ambient temperatures for SG140A -15 with -55°C ≤ 23V 1.0A 33µ 0.1µF and are applicable for the K, R, and IG - Power package - only. Low duty cycle pulse testing techniques ...

Page 8

... Thermal Shutdown I = 5mA O SG140 - 24 (Unless otherwise specified, these specifications apply over full operating ambient temperatures for SG140-24 with -55°C ≤ 500mA 33µ 0.1µF and are applicable for the K, R, and IG - Power package - only. Low duty cycle pulse testing techniques are ...

Page 9

... TO-66 SG140-XXR/883B METAL CAN SG140-XXR R-PACKAGE 3-PIN TO-39 METAL CAN SG140-XXT/883B T-PACKAGE SG140-XXT 3-PIN HERMETIC TO-257 SG140A-XXIG/883B -55°C to 125°C IG-PACKAGE (Isolated) SG140A-XXIG SG140-XXIG/883B SG140-XXIG 20-PIN CERAMIC (LCC) SG140-XXL/883B LEADLESS CHIP CARRIER SG140-XXL L- PACKAGE Note 1. Contact factory for JAN and DESC product availability. ...

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