Datasheet

3
LTC1263
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
Supply Current Supply Current
TEMPERATURE (°C)
–55
SUPPLY CURRENT (mA)
105
LTC1263 • TPC03
–15
25
65
220
215
210
205
200
195
190
185
180
–35
5
45
85
V
CC
= 4.75V
V
CC
= 5V
V
CC
= 5.5V
I
OUT
= 60mA
TEMPERATURE (°C)
–55
SUPPLY CURRENT (µA)
105
LTC1263 • TPC01
–15
25
65
328
326
324
322
320
318
316
314
312
–35
5
45
85
V
CC
= 5V
I
OUT
= 0
Output Voltage Oscillator Frequency
SUPPLY VOLTAGE (V)
4.7
OUTPUT VOLTAGE (V)
5.5
LTC1263 • TPC04
4.9
5.1
5.3
12.8
12.6
12.4
12.2
12.0
11.8
11.6
11.4
11.2
4.8
5.0
5.2
5.4
I
OUT
= 90mA
I
OUT
= 0mA, 60mA
T
A
= 25°C
TEMPERATURE (°C)
–55
FREQUENCY (kHz)
105
LTC1263 • TPC05
–15
25
65
460
420
380
340
300
260
220
180
140
–35
5
45
85
PIN FUNCTIONS
UUU
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
.
Output Voltage
TEMPERATURE (°C)
–55
OUTPUT VOLTAGE (V)
105
LTC1263 • TPC02
–15
25
65
12.8
12.6
12.4
12.2
12.0
11.8
11.6
11.4
11.2
–35
5
45
85
I
OUT
= 0mA
I
OUT
= 90mA
I
OUT
= 60mA
V
CC
= 5V