Electronic Components Datasheet Search |
|
LT1106 Datasheet(PDF) 5 Page - Linear Technology |
|
LT1106 Datasheet(HTML) 5 Page - Linear Technology |
5 / 8 page 5 LT1106 PI FU CTIO S SELECT 12/5 (Pin 1): Tie to VIN or logic 1 for 5V output; tie to GND or logic 0 for 12V output. SOFT START (Pin 2): A 0.1 µF/1MΩ parallel RC from this pin to GND provides a Soft Start function upon device turn-on. Initially about 80 µA will flow from the pin into the capacitor. When the voltage at the pin reaches approxi- mately 0.4V, current ceases flowing out of the pin. See Applications Information section. VCC (Pins 3, 4): Input Supply. Both pins should be tied together. At least 1 µF input bypass capacitance is re- quired. More capacitance reduces ringing on the supply line. 3/5 (Pin 5): Supply Comparator Output. This pin provides logic output indicating the value of the input supply. High when VCC = 5V; low when VCC = 3.3V. PGND (Pins 6, 7): Power Ground. Connect to ground plane. VSW (Pins 9, 10, 11): Collector of Power Switch. High dV/ dt present on this pin. To minimize radiated noise keep layout short and direct. GND (Pin 13): Signal Ground. Connect of ground plane. VPP VALID (Pin 14): This pin provides a logic signal indicating that ouput voltage is greater than 11.4V. Active low with internal 200k pull-up resistor. G1, G2 (Pins 16, 15): External MOSFET Gate Drives. When VPP1 or VPP2 is greater than 11.7V, G1 or G2 is driven to about 0.8V. When VPP1 or VPP2 is less than 11.7V, the drives assume a high impedance state pulled up to the AVPP pin through an internal 100k resistor. VPP1, VPP2 (Pins 18, 17): Programming Power Inputs. The LT1106 senses both VPP1 and VPP2 supplies at the PCMCIA card socket. If VPP1 or VPP2 is greater than 11V, the LT1106 operates in “Doze” Mode — the switching regulator turns off and the drive to external P-channel MOSFETs turns on. Supply current in Doze Mode is about 350 µA. Input current into VPP1 and VPP2 is about 1µA when the device is shut down. AVPP (Pin 19): Output Sense Pin. This pin connects to a 1M Ω resistive divider that sets the output voltage. In shutdown, the resistor string is disconnected and current into this pin is reduced to < 1 µA. ON/OFF (Pin 20): Shutdown Control. When pulled below 1.5V, this pin disables the LT1106 and reduces supply current to 10 µA. All circuitry except the 3/5 comparator is disabled in shutdown. The part is enabled when ON/OFF is greater than 1.5V. |
Similar Part No. - LT1106_02 |
|
Similar Description - LT1106_02 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |