LTC1263
TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current
328
326
I
OUT
= 0
12.8
12.6
V
CC
= 5V
SUPPLY CURRENT (mA)
SUPPLY CURRENT (µA)
OUTPUT VOLTAGE (V)
324
322
320
318
316
314
312
–55 –35 –15 5 25 45 65
TEMPERATURE (°C)
85 105
LTC1263 • TPC01
V
CC
= 5V
Output Voltage
12.8
12.6
T
A
= 25°C
460
420
380
I
OUT
= 0mA, 60mA
OUTPUT VOLTAGE (V)
12.4
FREQUENCY (kHz)
12.2
12.0
11.8
11.6
11.4
11.2
4.7
4.8
I
OUT
= 90mA
4.9 5.0 5.1 5.2 5.3
SUPPLY VOLTAGE (V)
PIN FUNCTIONS
C1
–
(Pin 1):
First Charge Capacitor Negative Input. Connect
a 0.47µF capacitor (C1) between C1
+
and C1
–
.
C1
+
(Pin 2):
First Charge Capacitor Positive Input. Connect
a 0.47µF capacitor (C1) between C1
+
and C1
–
.
C2
–
(Pin 3):
Second Charge Capacitor Negative Input.
Connect a 0.47µF capacitor (C2) between C2
+
and C2
–
.
C2
+
(Pin 4):
Second Charge Capacitor Positive Input.
Connect a 0.47µF capacitor (C2) between C2
+
and C2
–
.
V
CC
(Pin 5):
Positive Supply Input. 4.75V
≤
V
CC
≤
5.5V.
Requires a 10µF bypass capacitor to ground (C4).
V
OUT
(Pin 6):
12V Output. Requires a 10µF or a higher
value bypass capacitor to ground (C3). V
OUT
= V
CC
when
in the shutdown mode.
GND (Pin 7):
Ground.
SHDN (Pin 8):
Active-High TTL Logic Level Shutdown Pin.
SHDN is internally pulled up to V
CC
. Connect to GND for
normal operation. In shutdown mode, the charge pump is
turned off and V
OUT
= V
CC
.
U W
Output Voltage
220
215
210
205
200
195
Supply Current
I
OUT
= 60mA
12.4
12.2
I
OUT
= 60mA
12.0
11.8
11.6
11.4
11.2
–55 –35 –15 5 25 45 65
TEMPERATURE (°C)
85 105
LTC1263 • TPC02
V
CC
= 4.75V
V
CC
= 5V
V
CC
= 5.5V
I
OUT
= 0mA
I
OUT
= 90mA
190
185
180
–55 –35 –15 5 25 45 65
TEMPERATURE (°C)
85 105
LTC1263 • TPC03
Oscillator Frequency
340
300
260
220
180
5.4 5.5
140
–55 –35 –15 5 25 45 65
TEMPERATURE (°C)
85 105
LTC1263 • TPC05
LTC1263 • TPC04
U
U
U
3
LINER [ LINEAR TECHNOLOGY ]
