LTC1261LCS8-4.5#PBF Linear Technology, LTC1261LCS8-4.5#PBF Datasheet - Page 3

• Manufacturer Part Number: LTC1261LCS8-4.5#PBF
• Description: IC SW CAP/INV -4.5V 20MA 8SOIC
• Manufacturer: Linear Technology
• Type: Switched Capacitor (Charge Pump), Invertingr

Specifications of LTC1261LCS8-4.5#PBF

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: -4.5V
• Current - Output: 20mA
• Frequency - Switching: 650kHz
• Voltage - Input: 4.5V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

temperature range, otherwise specifications are at T
SYMBOL
V
I
Note 1: The Absolute Maximum Ratings are those values beyond which
the life of a device may be impaired.
Note 2: All currents into device pins are positive; all currents out of device
pins are negative. All voltages are referenced to ground unless otherwise
specified.
Note 3: The output should never be set to exceed V
TYPICAL PERFORMANCE CHARACTERISTICS
ELECTRICAL C
SC
OUT
– 0.50
– 0.75
–1.00
–1.25
–1.75
– 0.25
–1.50
– 2.00
– 2.25
0
0
Output Voltage vs Output Current
T
V
A
OUT
PARAMETER
Output Regulation (LTC1261L)
Output Regulation
(LTC1261L/LTC1261L-4)
Output Regulation
(LTC1261L/LTC1261L-4.5)
Output Short-Circuit Current
= 25 C
= – 2V
5
OUTPUT CURRENT (mA)
10
15
HARA TERISTICS
V
CC
20
= 2.7V
W
V
CC
= 3V
25
1261L G01
C
U
30
CC
– 10.8V.
– 3.0
– 3.1
– 3.2
– 3.3
– 3.4
– 3.5
– 3.6
– 3.7
– 3.8
– 3.9
– 4.0
– 4.1
– 4.2
4.60V V
CONDITIONS
2.70V V
3.25V V
2.70V V
2.95V V
3.50V V
2.95V V
3.30V V
3.85V V
3.40V V
3.70V V
4.25V V
3.85V V
4.10V V
4.60V V
4.35V V
5.10V V
4.75V V
5.05V V
V
OUT
A
0
Output Voltage vs Output Current
= 25 C, C1 = 0.1 F, C
T
V
= 0V, V
A
OUT
= 25 C
= – 4V
5
The
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
OUTPUT CURRENT (mA)
CC
5.25V, 0mA I
5.25V, 0mA I
5.25V, 0mA I
5.25V, 0mA I
5.25V, 0mA I
5.25V, 0mA I
5.25V, 0mA I
5.25V, 0mA I
5.25V, 0mA I
5.25V, 0mA I
5.25V, 0mA I
5.25V, 0mA I
5.25V, 0mA I
5.25V, 0mA I
5.25V, 0mA I
5.25V, 0mA I
5.25V, 0mA I
5.25V, 0mA I
5.25V, 0mA I
10
= 5.25V
denotes the specifications which apply over the full operating
15
Note 4: The LTC1261L is guaranteed to meet specified performance from
0 C to 70 C and is designed, characterized and expected to meet these
extended commercial temperature limits, but is not tested at – 40 C and
85 C. Guaranteed I grade parts are available, consult factory.
Note 5: The LTC1261L-4 and LTC1261L-4.5 will operate with less than the
minimum V
not guaranteed to meet the 3.5% V
V
CC
V
CC
20
= 4.5V
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
= 5V
CC
= 3.3 F unless otherwise noted. (Notes 2, 4)
25
specified in the electrical characteristics table, but they are
10mA
20mA
5mA
10mA
20mA
5mA
10mA
20mA
5mA
10mA
20mA
5mA
10mA
20mA
5mA
10mA
20mA
5mA
10mA
(See Test Circuits)
1261L G02
30
–2.00
–2.05
–2.10
–1.90
–1.95
2.5
Output Voltage vs Supply Voltage
– 1.552
– 1.552
– 2.070
– 2.070
– 2.070
– 2.587
– 2.587
– 2.587
– 3.105
– 3.105
– 3.105
– 3.622
– 3.622
– 3.622
– 4.140
– 4.140
– 4.140
– 4.657
– 4.657
OUT
V
MIN
OUT
T
T
A
specification.
A
3.0
= – 2V
= – 40 C
= 85 C
SUPPLY VOLTAGE (V)
– 1.5
– 1.5
– 2.0
– 2.0
– 2.0
– 2.5
– 2.5
– 2.5
– 3.0
– 3.0
– 3.0
– 3.5
– 3.5
– 3.5
– 4.0
– 4.0
– 4.0
– 4.5
– 4.5
TYP
100
3.5
LTC1261L
T
A
4.0
= 25 C
– 1.448
– 1.448
– 1.930
– 1.930
– 1.930
– 2.413
– 2.413
– 2.413
– 2.895
– 2.895
– 2.895
– 3.378
– 3.378
– 3.378
– 3.860
– 3.860
– 3.860
– 4.343
– 4.343
MAX
220
4.5
UNITS
1261L G03
5.0
3
mA
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V