Product Information

LTC1878EMS8#PBF

LTC1878EMS8#PBF electronic component of Analog Devices

Datasheet
Switching Voltage Regulators Low Iq Mono Synch Step-dn Reg

Manufacturer: Analog Devices
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges



Price (USD)

1: USD 9.6859 ea
Line Total: USD 9.6859

0 - Global Stock
MOQ: 1  Multiples: 1
Pack Size: 1
Availability Price Quantity
0 - Global Stock


Ships to you between Fri. 05 Apr to Thu. 11 Apr

MOQ : 1
Multiples : 1

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LTC1878EMS8#PBF
Analog Devices

1 : USD 5.98
25 : USD 3.969
100 : USD 3.281

0 - Global Stock


Ships to you between Thu. 11 Apr to Mon. 15 Apr

MOQ : 1
Multiples : 1

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LTC1878EMS8#PBF
Analog Devices

1 : USD 9.6859
10 : USD 8.5201
50 : USD 8.2687
100 : USD 6.9712
250 : USD 6.7804
500 : USD 6.2461
1000 : USD 5.8009

0 - Global Stock


Ships to you between Fri. 05 Apr to Thu. 11 Apr

MOQ : 1
Multiples : 1

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LTC1878EMS8#PBF
Analog Devices

1 : USD 7.0549
3 : USD 5.2211
8 : USD 4.9386

     
Manufacturer
Product Category
RoHS - XON
Icon ROHS
Mounting Style
Package / Case
Output Voltage
Output Current
Number of Outputs
Input Voltage MAX
Topology
Input Voltage MIN
Switching Frequency
Minimum Operating Temperature
Maximum Operating Temperature
Series
Packaging
Quiescent Current
Input Voltage
Operating Temperature Range
Type
Brand
Shutdown
Development Kit
Operating Supply Current
Product Type
Factory Pack Quantity :
Subcategory
Cnhts
Hts Code
Mxhts
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LTC1878 High Efficiency Monolithic Synchronous Step-Down Regulator FEATURES DESCRIPTIO n High Efficiency: Up to 95% The LTC 1878 is a high efficiency monolithic synchro- n Very Low Quiescent Current: Only 10m A nous buck regulator using a constant frequency, current During Operation mode architecture. Supply current during operation is n 600mA Output Current at V = 3.3V only 10m A and drops to < 1m A in shutdown. The 2.65V to IN n 2.65V to 6V Input Voltage Range 6V input voltage range makes the LTC1878 ideally suited n 550kHz Constant Frequency Operation for single Li-Ion battery-powered applications. 100% duty n Synchronizable from 400kHz to 700kHz cycle provides low dropout operation, extending battery TM n Selectable Burst Mode Operation or life in portable systems. Pulse Skipping Mode Switching frequency is internally set at 550kHz, allowing n No Schottky Diode Required the use of small surface mount inductors and capacitors. n Low Dropout Operation: 100% Duty Cycle For noise sensitive applications the LTC1878 can be n 0.8V Reference Allows Low Output Voltages externally synchronized from 400kHz to 700kHz. Burst n Shutdown Mode Draws < 1m A Supply Current Mode operation is inhibited during synchronization or n 2% Output Voltage Accuracy when the SYNC/MODE pin is pulled low, preventing low n Current Mode Control for Excellent Line and frequency ripple from interfering with audio circuitry. Load Transient Response n Overcurrent and Overtemperature Protected The internal synchronous switch increases efficiency and n Available in 8-Lead MSOP Package eliminates the need for an external Schottky diode. Low U output voltages are easily supported with the 0.8V feed- APPLICATIO S back reference voltage. The LTC1878 is available in a n Cellular Telephones space saving 8-lead MSOP package. n Wireless Modems For higher input voltage (11V abs max) applications, refer n Personal Information Appliances to the LTC1877 data sheet. n Portable Instruments , LTC and LT are registered trademarks of Linear Technology Corporation. n Distributed Power Systems Burst Mode is a trademark of Linear Technology Corporation. n Battery-Powered Equipment Efficiency vs Output Load Current TYPICAL APPLICATIO 100 V = 3.6V 95 IN High Efficiency Step-Down Converter 10H* 90 V IN 7 5 V OUT SW V = 4.2V 2.65V SYNC IN 3.3V 20pF TO 6V 6 22F** V 85 IN + CER LTC1878 1 47F*** V = 6V RUN IN 887k 80 2 3 I V TH FB GND 280k 220pF 4 75 Burst Mode OPERATION V = 3.3V OUT 1878 TA01 L = 10H 70 *TOKO D62CB A920CY-100M 0.1 1 10 100 1000 **TAIYO-YUDEN CERAMIC JMK325BJ226MM OUTPUT CURRENT (mA) ***SANYO POSCAP 6TPA47M V CONNECTED TO V FOR 2.65V < V < 3.3V 1878 TA02 OUT IN IN 1 EFFICIENCY (%) U ULTC1878 UUW ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1) Input Supply Voltage (V )...........................0.3V to 7V IN ORDER PART I , PLL LPF Voltage ................................0.3V to 2.7V NUMBER TH TOP VIEW RUN, V Voltages ...................................... 0.3V to V RUN PLL LPF 1 8 FB IN I 2 7 SYNC/MODE TH SYNC/MODE Voltage .................................. 0.3V to V LTC1878EMS8 IN V 6 V 3 FB IN GND 4 5 SW SW Voltage ................................... 0.3V to (V + 0.3V) IN MS8 PACKAGE P-Channel MOSFET Source Current (DC) ........... 800mA MS8 PART MARKING 8-LEAD PLASTIC MSOP N-Channel MOSFET Sink Current (DC) ............... 800mA T = 125 C, q = 150 C/ W JMAX JA Peak SW Sink and Source Current ........................ 1.5A LTNX Operating Ambient Temperature Range Consult factory for Industrial and Military grade parts. (Note 2) .................................................. 40 C to 85 C Junction Temperature (Note 3)............................ 125 C Storage Temperature Range ................. 65 C to 150 C Lead Temperature (Soldering, 10 sec).................. 300 C ELECTRICAL CHARACTERISTICS The l denotes specifications which apply over the full operating temperature range, otherwise specifications are T = 25 C. A V = 3.6V unless otherwise specified. IN SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS I Feedback Current (Note 4) l 430 nA VFB V Regulated Output Voltage (Note 4) 0 C T 85 C 0.784 0.8 0.816 V FB A (Note 4) 40 C T 85 C l 0.74 0.8 0.84 V A D V Output Overvoltage Lockout D V = V V l 20 50 110 mV OVL OVL OVL FB D V Reference Voltage Line Regulation V = 2.65V to 6V (Note 4) 0.05 0.2 %/V FB IN V Output Voltage Load Regulation Measured in Servo Loop V = 0.9V to 1.2V l 0.1 0.5 % LOADREG ITH Measured in Servo Loop V = 1.6V to 1.2V l 0.1 0.5 % ITH V Input Voltage Range l 2.65 6 V IN I Input DC Bias Current (Note 5) Q Pulse Skipping Mode 2.65V < V < 6V, V = 0V, I = 0A 230 350 m A IN SYNC/MODE OUT Burst Mode Operation V = V , I = 0A 10 15 m A SYNC/MODE IN OUT Shutdown V = 0V, V = 6V 0 1 m A RUN IN f Oscillator Frequency V = 0.8V 495 550 605 kHz OSC FB V = 0V 80 kHz FB f SYNC Capture Range 400 700 kHz SYNC I Phase Detector Output Current PLL LPF Sinking Capability f < f l 3 10 20 m A PLLIN OSC Sourcing Capability f > f l 3 10 20 m A PLLIN OSC R R of P-Channel MOSFET I = 100mA 0.5 0.7 W PFET DS(ON) SW R R of N-Channel MOSFET I = 100mA 0.6 0.8 W NFET DS(ON) SW 2 U WWW

Tariff Desc

8542.31.00 51 No ..Application Specific (Digital) Integrated Circuits (ASIC)

Electronic integrated circuits: Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits
Monolithic integrated circuits:
AD4
ANALOG DEVICES
Analog Devices Hittite
ANALOG DEVICES (LINEAR TECHNOLOGY)
ANALOG DEVICES (MAXIM INTEGRATED)
ANALOG DEVICES (TRINAMIC)
Analog Devices / Hittite
Analog Devices / Linear Technology
Analog Devices Inc
Analog Devices Inc.
Analog Devices, Inc.
DA4
Dallas
DALLAS / MAXIM
Dallas Semiconductor (VA)
LINEAR
LINEAR TECH
Linear Technology
Linear Technology (part of ADI)
LT
LT4
MAXIM
Maxim Integrated
MAXIM INTEGRATED / ANALOG DEVICES
Maxim Integrated Products
MAXIM-DALLAS
MX4
Technology
Trinamic
TRINAMIC / ANALOG DEVICES
Trinamic Motion Control
Trinamic Motion Control GmbH

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