Datasheet

5.1 V
Reference
Regulator
UV
Lockout
FF
T
Q
Q
OSC
4.1 V
VIN 15
SYNC 10
RT 9
CT 8
CS− 3
CS+ 4
EA+ 5
EA− 6
COMP 7
VREF
2
VC
13
AOUT
11
BOUT14
GND
12
CL SS
1
SHUTDOWN
16
X3
−
+ COMP
−
+
R
S
Q
S
0.5 mA
EA
−
+
1 V
6 kΩ
+
−
0.5 V
−
+
B0010-01
UC 285 6 Q DW R
Tape and Reel Indicator
Package
Temperature Indicator
DW = Plastic SOIC
Q = −405C to 1255C
UC2856Q
SGLS265A –NOVEMBER 2004– REVISED MAY 2011 www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
BLOCK DIAGRAM
ORDERING INFORMATION
2 Copyright © 2004–2011, Texas Instruments Incorporated