Datasheet LT3088 (Analog Devices) - 8

LT3088
PIN FUNCTIONS IN:
Input. This pin supplies power to regulate internal
Exposed Pad/Tab:
Output. The exposed pad of the DD circuitry and supply output load current. For the device package and the tab of the M and ST packages are tied to operate properly and regulate, the voltage on this pin internally to OUT. As such, tie them directly to OUT at the must be between the dropout voltage and 36V above the PCB. The amount of copper area and planes connected OUT pin (depending on output load current, see Dropout to OUT determine the effective thermal resistance of the Voltage Specifications). packages.
OUT:
Output. This is the power output of the device.
The NC:
(DD Package Only) No Connection. No connect pins
LT3088 requires a 2mA minimum load current for proper
have no connection to internal circuitry and may be tied
output regulation.
to IN, OUT, GND or floated.
SET:
Set. This pin is the error amplifier’s noninverting input and also sets the operating bias point of the circuit. A fixed 50µA current source flows out of this pin. A single external resistor programs VOUT. Output voltage range is 0V to 34.5V.
BLOCK DIAGRAM
IN 50µA + – SET OUT 3088 BD 3088fb 8 For more information www.linear.com/LT3088 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Order Information Typical Performance Characteristics Block Diagram Applications Information Revision History Typical Application Related Parts