lt3032 Linear Technology Corporation, lt3032 Datasheet - Page 12

• Manufacturer Part Number: lt3032
• Description: Dual 150ma Positive/negative Low Noise Low Dropout Linear Regulator
• Manufacturer: Linear Technology Corporation

LT3032
PIN FUNCTIONS
over the 10Hz to 100kHz bandwidth. If not used, this pin
must be left unconnected.
SHDNP (Pin 12): Positive Shutdown. The SHDNP pin puts
the positive side into a low power shutdown state. The
positive output will be off when the SHDNP pin is pulled
below 0.8V(typical). The SHDNP pin can be driven by 5V
logic or open-collector logic with a pull-up resistor. The
pull-up resistor is required to supply the pull-up current of
the open-collector device, normally several microamperes,
and the SHDNP pin current, typically 1μA into the pin. If
unused, the SHDNP pin must be connected to INP . The
positive output will be shut down if the SHDNP pin is open
circuit. The SHDNP pin can be tied directly to the SHDNN
pin and both pins driven directly by positive logic for a
single point control of both outputs.
12
NC (Pin 13): No Connect. The No Connect pin has no
connection to internal circuitry and may be tied to INP ,
GND, INN, SHDNP, SHDNN, OUTP , OUTN, fl oated, or tied
to any other point.
INP(Pin 14): Positive Input. Power is supplied to the
positive side of the LT3032 through the INP pin. A bypass
capacitor is required on this pin if it is more than six inches
away from the main input fi lter capacitor. In general, the
output impedance of a battery rises with frequency, so
it is advisable to include a bypass capacitor in battery-
powered circuits. A bypass capacitor in the range of 1μF
to 10μF is suffi cient.
3032f