LT1054CSW datasheet(3/16 Pages) LINER

3 / 16 page

LT1054/LT1054L

ELECTRICAL C

HARA TERISTICS

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Supply Current

ILOAD = 0mA

LT1054:

VIN = 3.5V

2.5

4.0

VIN = 15V

3.0

5.0

LT1054L: VIN = 3.5V

2.5

4.0

VIN = 7V

3.0

5.0

Supply Voltage Range

LT1054

3.5

LT1054L

3.5

Voltage Loss (VIN – VOUT)CIN = COUT = 100µF Tantalum (Note 4)

IOUT = 10mA

0.35

0.55

IOUT = 100mA

1.10

1.60

IOUT = 125mA (LT1054L)

1.35

1.75

Output Resistance

∆IOUT = 10mA to 100mA (Note 5)

Ω

Oscillator Frequency

LT1054: 3.5V

≤ VIN ≤ 15V

kHz

LT1054L: 3.5V

≤ VIN ≤ 7V

kHz

Reference Voltage

IREF = 60µA, TJ = 25°C

2.35

2.50

2.65

2.25

2.75

Regulated Voltage

VIN = 7V, TJ = 25°C, RL = 500Ω (Note 6)

– 4.70

– 5.00

– 5.20

Line Regulation

LT1054: 7V

≤ VIN ≤ 12V, RL = 500Ω (Note 6)

525

Load Regulation

VIN = 7V, 100Ω ≤ RL ≤ 500Ω (Note 6)

Maximum Switch Current

300

Supply Current in Shutdown

VPIN1 = 0V

100

200

µA

(Note 7)

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.

The q denotes specifications which apply over the full operating

temperature range.

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.

LT1054CSW Datasheet(PDF) 3 Page - Linear Technology

LT1054CSW Datasheet(HTML) 3 Page - Linear Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Datasheet Download

Link URL