Motor de Búsqueda de Datasheet de Componentes Electrónicos |
|
LM2623AMM Datasheet(PDF) 4 Page - National Semiconductor (TI) |
|
|
LM2623AMM Datasheet(HTML) 4 Page - National Semiconductor (TI) |
4 / 11 page Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. SW Pin Voltage −0.5 V to 14.5V BOOT, V DD, EN and FB Pins −0.5V to 10V FREQ Pin 100µA T Jmax (Note 2) 150˚C Storage Temperature Range −65˚C to +150˚C Lead Temp. (Soldering, 5 sec) 260˚C Power Dissipation (T A=25˚C) (Note 2) 500mW ESD Rating (Note 3) 2kV Operating Conditions (Note 1) V DD Pin 3V to 5V FB, EN Pins 0 to V DD BOOT Pin 0 to 10V Ambient Temperature (T A) −40˚C to +85˚C Electrical Characteristics Limits in standard typeface are for T J = 25˚C, and limits in boldface type apply over the full operating temperature range of −40˚C to +85˚C. Unless otherwise specified: V DD=VOUT= 3.3V. Symbol Parameter Condition Typ Min Max Units V DD_ST Start-Up Supply Voltage 25˚C I LOAD = 0mA (Note 4) 1.1 V V IN_OP Minimum Operating Supply Voltage (once started) I LOAD = 0mA 0.65 .8 V V FB FB Pin Voltage 1.24 1.2028 1.2772 V V OUT_MAX Maximum Output Voltage 14 V η Efficiency V IN = 3.6V; VOUT = 5V; ILOAD = 500mA 87 % V IN = 2.5V; VOUT = 3.3V; ILOAD = 200mA 87 D Switch Duty Cycle 17 % I DD Operating Quiescent Current (Note 5) FB Pin > 1.3V; EN Pin at V DD 80 110 µA I SD Shutdown Quiescent Current (Note 6) V DD, BOOT and SW Pins at 5.0V; EN Pin <200mV 0.01 2.5 µA I CL Switch Peak Current Limit LM2623A 2. 85 2.2 A I C Switch Peak Current Limit LM2623 1.2 A R DS_ON MOSFET Switch On Resistance 0.17 0.26 Ω θ JA Thermal Resistance MM Package, Junction to Ambient(Note 2) 240 ˚C/W θ JA Thermal Resistance LLP Package, Junction to Ambient(Notes 2, 8) 40 ˚C/W θ JA Thermal Resistance LLP Package, Junction to Ambient(Notes 2, 9) 56 ˚C/W Enable Section V EN_LO EN Pin Voltage Low (Note 7) 0.15V DD V V EN_HI EN Pin Voltage High (Note 7) 0.7V DD V Note 1: Absolute maximum ratings indicate limits beyond which damage to the device may occur. Electrical specifications do not apply when operating the device outside of its rated operating conditions. Note 2: The maximum power dissipation must be derated at elevated temperatures and is dictated by Tjmax (maximum junction temperature), θJA (junction to ambient thermal resistance), and TA (ambient temperature). The maximum allowable power dissipation at any temperature is Pdmax =(Tjmax -TA)/ θJA or the number given in the Absolute Maximum Ratings, whichever is lower. Note 3: The human body model is a 100 pF capacitor discharged through a 1.5 k Ω resistor into each pin. For Pin 8 (SW) the ESD rating is 1.0 kV. Note 4: VDD tied to Boot and EN pins. Frequency pin tied to VDD through 121K resistor. VDD_ST =VDD when startu-up occurs. VIN is VDD + D1 voltage (usually 10-50 mv at start-up) Note 5: This is the current into the VDD pin. Note 6: This is the total current into pins VDD, BOOT, SW and FREQ. Note 7: When the EN pin is below VEN_LO, the regulator is shut down; when it is above VEN_HI, the regulator is operating. www.national.com 4 |
Número de pieza similar - LM2623AMM |
|
Descripción similar - LM2623AMM |
|
|
Enlace URL |
Política de Privacidad |
ALLDATASHEET.ES |
¿ALLDATASHEET es útil para Ud.? [ DONATE ] |
Todo acerca de Alldatasheet | Publicidad | Contáctenos | Política de Privacidad | Intercambio de Enlaces | Lista de Fabricantes 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 |