Datasheet

UCC284–5, UCC284–12, UCC284–ADJ, UCC384–5, UCC384–12, UCC384–ADJ
LOW-DROPOUT 0.5-A NEGATIVE LINEAR REGULATOR
SLUS234D – JANUARY 2000 – REVISED FEBRUARY 2002
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
functional block diagram
3
8
2
6
7 5
R1
R2
1
4 GND
VOUTS
VOUT
1.25 V
–2.6 V
–1.6 V
OVERCURRENT
S
Q
Q
R
THERMAL
SHUTDOWN
1–
µ
A
DISCHARGE
40
µ
A
VPUMP
SD/CT
CHARGE
700 mA
50 k
GM
TON
TOFF
UVLO
VIN
VIN
VIN
VIN
–2.2 V
R1 R2
0 OPENUCC384–ADJ
UCC384–5
UCC384–12
375K
375K
125K
43.6K
SHUTDOWN
–0.7 V
(–)
(+)
+
+
+
+
+
(–)
UDG–99030
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Ĕ}
Input voltage range
‡
, V
IN
–16 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shutdown voltage range, SD/CT –5 V to 6 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating virtual junction temperature range, T
J
–55°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range T
stg
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature (Soldering, 10 seconds) 300°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
‡
All voltages are with respect to ground. Currents are positive into and negative out of the specified terminals.