RH1083M Datasheet, PDF (1/4 Pages) Linear Technology – 7.5A Low Dropout Positive Adjustable Regulator

RH1083M
7.5A Low Dropout
Positive Adjustable Regulator
DESCRIPTIO
The RH1083M positive adjustable regulator is designed to
provide 7.5A with higher efficiency than currently avail-
able devices. All internal circuitry is designed to operate
down to 1V input-to-output differential and the dropout
voltage is fully specified as a function of load current.
Dropout is guaranteed at a maximum of 1.5V at maximum
output current, decreasing at lower load currents. On-chip
trimming adjusts the output voltage to 1%. Current limit is
also trimmed, minimizing the stress on both the regulator
and power source circuitry under overload conditions.
The RH1083M is pin compatible with older 3-terminal
regulators. A 10μF output capacitor is required on this new
device. However, this is usually included in most regulator
designs.
Unlike PNP regulators, where up to 10% of the output
current is wasted as quiescent current, the RH1083M
quiescent current flows into the load, increasing efficiency.
The wafer lots are processed to Linear Technology
Corporation’s in-house Class S flow-to-yield circuits us-
able in stringent military applications.
Since the TO-3 package on this product cannot meet the
cracked glass external visual criteria of MIL-STD-883
Method 2009, inspection for cracked glass at 100% exter-
nal visual will not be performed. Instead a 100% fine/gross
leak test will be performed just prior to shipment.
ABSOLUTE AXI U RATI GS
Power Dissipation .............................. Internally Limited
Input-to-Output Voltage Differential ........................ 30V
Operating Junction Temperature Range
Control Circuitry ............................ – 55°C to 150°C
Power Transistor ........................... – 55°C to 200°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec.)................ 300°C
, LTC and LT are registered trademarks of Linear Technology Corporation.
BUR -I CIRCUIT
W
PACKAGE I FOR ATIO
18V
–18V
RH1083M
IN
OUT
ADJ
1k
121Ω
CAPACITOR(S) NOT SHOWN
RH1083 BI
BOTTOM VIEW
V_IN
2
1
ADJ
K PACKAGE
2-LEAD TO-3 METAL CAN
(STEEL)
CASE
IS OUTPUT
1