LTC1517CS5-3.3 Linear Technology, LTC1517CS5-3.3 Datasheet - Page 4

• Manufacturer Part Number: LTC1517CS5-3.3
• Description: Micropower/ Regulated 3.3V Charge Pump in a 5-Pin SOT-23 Package
• Manufacturer: Linear Technology

SI PLIFIED
LTC1517-3.3
TYPICAL PERFORMANCE CHARACTERISTICS
PIN
V
2V and 4.4V. V
ESR capacitor as close as possible to the pin for best
performance.
GND (Pin 2): Ground. Should be tied to a ground plane for
best performance.
V
bypassed with a 3.3 F low ESR capacitor as close as
possible to the pin for best performance.
4
IN
OUT
W
U
(Pin 1): Charge Pump Input Voltage. May be between
(Pin 3): Regulated Output Voltage. V
FUNCTIONS
U
900
800
700
600
500
IN
2.0
Oscillator Frequency vs
Input Voltage
should be bypassed with a 3.3 F low
T
A
= 25 C
BLOCK DIAGRA
U
2.5
INPUT VOLTAGE (V)
V
3.0
W
IN
C
IN
U
3.5
4.0
700kHz
OSC
OUT
1517 G07
4.5
W
C1
CHARGE PUMP
should be
–
0.1 F
C1
C1
THERMAL
SHDN
+
C1
Terminal.
C1
Terminal.
+
–
1.25V
REF
(Pin 5): Charge Pump Flying Capacitor Negative
(Pin 4): Charge Pump Flying Capacitor Positive
+
–
900
800
700
600
500
400
–50
Oscillator Frequency vs
Temperature
V
IN
1.25M
2.05M
= 2.5V
–25
TEMPERATURE ( C)
0
1517-3.3 BD
C
25
OUT
V
OUT
50
75
1517 G08
100