LTC2955
7
2955f
BLOCK DIAGRAM
2955 BD
V
IN
PB
ON
ON
OFF
*DFN ONLY
TMR
SEL*
GND
V
LDO
REGULATOR V
LDO
≈ 5.2V
V
LDO
2µA
EN CONTROL
900k
0.8V
0.8V
0.8V
0.8V
KILL
INT
PGD*
–
+
–
+
–
+
–
+
OSCILLATOR
f = 1kHz
OSCILLATOR
DEBOUNCE
LOGIC
2µA
(2955-1)
EN
EN CONTROL
LTC2955-1
V
IN
(2955-2)
EN
EN CONTROL
LTC2955-2
900k
V
LDO
