www.fairchildsemi.com
Features
• Simultaneously adjustable outputs with one resistor
to
±
42V
• Load current –
±
200 mA with 0.04% load regulation
Description
The RC/RM4194 are dual polarity tracking regulators
designed to provide balanced or unbalanced positive and
negative output voltages at currents to 200 mA.
A single external resistor adjustment can be used to change
both outputs between the limits of
±
50 mV and
±
42V.
These devices are designed for local “on-card” regulation,
eliminating distribution problems associated with single-
point regulation. To simplify application the regulators
require a minimum number of external parts.
The device is available in three package types to accommo-
date various power requirements. The K (TO-66) power
package can dissipate up to 3W at T
A
= +25
°
C. The D
14-pin dual in-line will dissipate up to 1W and the N
14-pin dual in-line will dissipate up to 625 mW.
• Internal thermal shutdown at T
J
= +175
°
C
• External balance for
±
V
OUT
unbalancing
• 3W power dissipations
Block Diagram
Comp+
Bal
+V
S
–V
S
–V
OUT
+V
OUT
GND
R
SET
R
O
65-4194-01
Thermal
Shutdown
100
µ
A
Current
Source
Comp–
20K
4194
20K
3R
R
RC4194
Dual Tracking Voltage Regulators
Rev. 1.0.0
