LTC1754ES6-5 Linear Technology, LTC1754ES6-5 Datasheet - Page 5

• Manufacturer Part Number: LTC1754ES6-5
• Manufacturer: Linear Technology
• Type: Step Upr

Specifications of LTC1754ES6-5

• Output Voltage: 5V
• Output Current: 50mA
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (max): 5.5V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Package Type: TSOT-23
• Pin Count: 6
• Mounting: Surface Mount
• Lead Free Status / Rohs Status: Not Compliant

SI PLIFIED
PI FU CTIO S
TYPICAL PERFOR A CE CHARACTERISTICS
LTC1754-3.3. LTC1754-5, T
V
mance, V
ESR capacitor as close as possible to the pin.
GND (Pin 2): Ground. Should be tied to a ground plane for
best performance.
SHDN (Pin 3): Active Low Shutdown Input. A low on
SHDN disables the LTC1754. SHDN must not be allowed
to float.
OUT
100
W
U
90
70
60
50
30
80
40
2.0
(Pin 1): Regulated Output Voltage. For best perfor-
Efficiency vs Supply Voltage
LTC1754-3.3
I
2.5
OUT
OUT
U
= 20mA
3.0
should be bypassed with a 6.8 F (min) low
SUPPLY VOLTAGE (V)
3.5
LTC1754-5
I
OUT
U
BLOCK DIAGRA
4.0
= 25mA
A
SHDN
= 25 C unless otherwise noted.
V
4.5
OUT
W
T
C
A
FLY
= 25 C
C
10 F
5.0
OUT
= 1 F
1754 G19
U
5.5
*CHARGE PUMP SHOWN IN PHASE 1, THE CHARGING PHASE.
PHASE 1 IS ALSO THE SHUTDOWN PHASE
850
800
750
700
650
600
550
500
450
+
–
COMP1
V
2.0
REF
Oscillator Frequency
vs Supply Voltage
W
2.5
3.0
SUPPLY VOLTAGE (V)
CONTROL
3.5
T
A
T
T
C
V
with a 6.8 F (min) low ESR capacitor.
C
A
A
= –40 C
IN
4.0
= 85 C
= 25 C
–
+
*
(Pin 4): Flying Capacitor Negative Terminal.
(Pin 6): Flying Capacitor Positive Terminal.
(Pin 5): Input Supply Voltage. V
4.5
2
2
1
1
5.0
1754 G20
LTC1754-3.3/LTC1754-5
5.5
1754 BD
C
C
+
–
C
1 F
0.95
0.90
0.75
0.65
FLY
0.85
0.80
0.70
2.0
C
10 F
V
vs Supply Voltage
IN
SHDN
2.5
V
IN
Threshold Voltage
3.0
SUPPLY VOLTAGE (V)
IN
should be bypassed
3.5
T
T
T
A
A
A
= –40 C
= 25 C
= 85 C
4.0
4.5
5.0
1754 G21
5
5.5