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LT1054L Datasheet(PDF) 3 Page - Linear Technology

Part No. LT1054L
Description  Switched-Capacitor Voltage Converter with Regulator
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Maker  LINER [Linear Technology]
Homepage  http://www.linear.com
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LT1054L Datasheet(HTML) 3 Page - Linear Technology

 
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3
LT1054/LT1054L
1054lfe
The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 7)
ELECTRICAL C
C
HARA TERISTICS
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Current
ILOAD = 0mA
LT1054:
VIN = 3.5V
q
2.5
4.0
mA
VIN = 15V
q
3.0
5.0
mA
LT1054L: VIN = 3.5V
q
2.5
4.0
mA
VIN = 7V
q
3.0
5.0
mA
Supply Voltage Range
LT1054
q
3.5
15
V
LT1054L
q
3.5
7
V
Voltage Loss (VIN VOUT)CIN = COUT = 100µF Tantalum (Note 4)
IOUT = 10mA
q
0.35
0.55
V
IOUT = 100mA
q
1.10
1.60
V
IOUT = 125mA (LT1054L)
q
1.35
1.75
V
Output Resistance
∆IOUT = 10mA to 100mA (Note 5)
q
10
15
Oscillator Frequency
LT1054: 3.5V
≤ VIN ≤ 15V
q
15
25
40
kHz
LT1054L: 3.5V
≤ VIN ≤ 7V
q
15
25
35
kHz
Reference Voltage
IREF = 60µA, TJ = 25°C
2.35
2.50
2.65
V
q
2.25
2.75
V
Regulated Voltage
VIN = 7V, TJ = 25°C, RL = 500Ω (Note 6)
– 4.70
– 5.00
– 5.20
V
Line Regulation
LT1054: 7V
≤ VIN ≤ 12V, RL = 500Ω (Note 6)
q
525
mV
Load Regulation
VIN = 7V, 100Ω ≤ RL ≤ 500Ω (Note 6)
q
10
50
mV
Maximum Switch Current
300
mA
Supply Current in Shutdown
VPIN1 = 0V
q
100
200
µA
Note 5: Output resistance is defined as the slope of the curve, (
∆VOUT vs
∆IOUT), for output currents of 10mA to 100mA. This represents the linear
portion of the curve. The incremental slope of the curve will be higher at
currents < 10mA due to the characteristics of the switch transistors.
Note 6: All regulation specifications are for a device connected as a
positive-to-negative converter/regulator with R1 = 20k, R2 = 102.5k,
C1 = 0.002
µF, (C1 = 0.05µF S package) CIN = 10µF tantalum,
COUT = 100µF tantalum.
Note 7: The S8 package uses a different die than the H, J8, N8 and S
packages. The S8 device will meet all the existing data sheet parameters.
See Regulation and Capacitor Selection in the Applications Information
section for differences in application requirements.
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The absolute maximum supply voltage rating of 16V is for
unregulated circuits using LT1054. For regulation mode circuits using
LT1054 with VOUT ≤ 15V at Pin 5 (Pin 11 on S package), this rating may
be increased to 20V. The absolute maximum supply voltage for LT1054L
is 7V.
Note 3: The devices are guaranteed by design to be functional up to the
absolute maximum junction temperature.
Note 4: For voltage loss tests, the device is connected as a voltage
inverter, with pins 1, 6, and 7 (3, 12, and 13 S package) unconnected.
The voltage losses may be higher in other configurations.


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