LTC1550L_15 Datasheet, PDF (3/12 Pages) Linear Technology – Low Noise, Switched Capacitor Regulated Voltage Inverters

LTC1550L/LTC1551L
ELECTRICAL CHARACTERISTICS
The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T_A = 25°C.
V_CC = 2.7V to 5.25V, C1 = C_CP = 0.1µF, C_OUT = 10µF, T_A = 25°C unless otherwise specified. (Note 3)
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
f_OSC
Internal Oscillator Frequency
V_OL
REG Output Low Voltage
I_REG = 1mA, V_CC = 5V
I_REG
REG Sink Current
V_REG = 0.8V, V_CC = 5V
V_IH
SHDN Input High Voltage
V_CC = 5V
V_IL
SHDN Input Low Voltage
V_CC = 5V
I_IN
SHDN Input Current
V_SHDN = V_CC (All LTC1550L Versions)
V_SHDN = V_CC (All LTC1551L Versions)
t_ON
Turn-On Time
V_CC = 5V, I_OUT = 10mA, –1.5V ≤ V_OUT ≤ 4.1V
(LTC1550L/LTC1551L)
900
kHz
q
0.1
0.8
V
q4
10
mA
q2
V
q
0.8
V
q
0.1
1
µA
q
5
20
µA
q
1
5
ms
V_CC = 5V, I_OUT = 5mA, V_OUT = – 4.5V
(LTC1550L/LTC1551L)
q
1
5
ms
V_CC = 5V, I_OUT = 10mA, V_OUT = – 2V
(LTC1550L-2)
q
1
5
ms
V_CC = 5V, I_OUT = 10mA, V_OUT = – 2.5V
(LTC1550L-2.5)
q
1
5
ms
V_CC = 5V, I_OUT = 10mA, V_OUT = – 4.1V
(LTC1550L-4.1/LTC1551L-4.1)
q
1
5
ms
V_OUT
Output Regulation
(LTC1550L/LTC1551L)
2.7V ≤ V_CC ≤ 5.25V, 0 ≤ I_OUT ≤ 5mA
2.8V ≤ V_CC ≤ 5.25V, 0 ≤ I_OUT ≤ 10mA
3.5V ≤ V_CC ≤ 5.25V, 0 ≤ I_OUT ≤ 20mA
V_OUT
Output Regulation
(LTC1550L/LTC1550L-2/
LTC1551L)
2.7V ≤ V_CC ≤ 5.25V, 0 ≤ I_OUT ≤ 5mA
3.1V ≤ V_CC ≤ 5.25V, 0 ≤ I_OUT ≤ 10mA
3.75V ≤ V_CC ≤ 5.25V, 0 ≤ I_OUT ≤ 20mA
V_OUT
Output Regulation
3.05V ≤ V_CC ≤ 5.25V, 0 ≤ I_OUT ≤ 5mA
(LTC1550L/LTC1550L-2.5/
3.45V ≤ V_CC ≤ 5.25V, 0 ≤ I_OUT ≤ 10mA
LTC1551L)
4.1V ≤ V_CC ≤ 5.25V, 0 ≤ I_OUT ≤ 20mA
V_OUT
Output Regulation
(LTC1550L/LTC1551L)
3.45V ≤ V_CC ≤ 5.25V, 0 ≤ I_OUT ≤ 5mA
3.85V ≤ V_CC ≤ 5.25V, 0 ≤ I_OUT ≤ 10mA
4.5V ≤ V_CC ≤ 5.25V, 0 ≤ I_OUT ≤ 20mA
V_OUT
Output Regulation
(LTC1550L/LTC1551L)
3.9V ≤ V_CC ≤ 5.25V, 0 ≤ I_OUT ≤ 5mA
4.2V ≤ V_CC ≤ 5.25V, 0 ≤ I_OUT ≤ 10mA
4.85V ≤ V_CC ≤ 5.25V, 0 ≤ I_OUT ≤ 20mA
V_OUT
Output Regulation
4.5V ≤ V_CC ≤ 5.25V, 0 ≤ I_OUT ≤ 5mA
(LTC1550L/LTC1550L-4.1)
4.75V ≤ V_CC ≤ 5.25V, 0 ≤ I_OUT ≤ 10mA
(LTC1551L/LTC1551L-4.1)
q – 1.537 – 1.5 – 1.463
V
q – 1.537 – 1.5 – 1.463
V
q – 1.537 – 1.5 – 1.463
V
q – 2.05 – 2.0 – 1.95
V
q – 2.05 – 2.0 – 1.95
V
q – 2.05 – 2.0 – 1.95
V
q – 2.562 – 2.5 – 2.438
V
q – 2.562 – 2.5 – 2.438
V
q – 2.562 – 2.5 – 2.438
V
q – 3.075 – 3.0 – 2.925
V
q – 3.075 – 3.0 – 2.925
V
q – 3.075 – 3.0 – 2.925
V
q – 3.587 – 3.5 – 3.413
V
q – 3.587 – 3.5 – 3.413
V
q – 3.587 – 3.5 – 3.413
V
q – 4.203 – 4.1 – 3.998
V
q – 4.203 – 4.1 – 3.998
V
V_OUT
I_SC
V_RIPPLE
Output Regulation
(LTC1550L/LTC1551L))
Output Short-Circuit Current
Output Ripple Voltage
4.8V ≤ V_CC ≤ 5.25V, 0 ≤ I_OUT ≤ 5mA
5.1V ≤ V_CC ≤ 5.25V, 0 ≤ I_OUT ≤ 10mA
V_OUT = 0V, V_CC = 5.25V
q – 4.613 – 4.5 – 4.388
V
q – 4.613 – 4.5 – 4.388
V
q
80
200
mA
1
mV
Note 1: 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. All typicals are given at T_A = 25°C.
Note 3: The LTC1550LC/LTC1551LC are guaranteed to meet specified
performance from 0°C to 70°C and are designed, characterized and
expected to meet these extended temperature limits, but are not tested at
– 40°C and 85°C. The LTC1550LI is guaranteed to meet the extended
temperature limits.
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