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X-On Electronics has gained recognition as a prominent supplier of DC257A Power Management IC Development Tools across the USA, India, Europe, Australia, and various other global locations. DC257A Power Management IC Development Tools are a product manufactured by Analog Devices. We provide cost-effective solutions for Power Management IC Development Tools, ensuring timely deliveries around the world.

DC257A Analog Devices

DC257A electronic component of Analog Devices
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Part No.DC257A
Manufacturer: Analog Devices
Category: Power Management IC Development Tools
Description: Power Management IC Development Tools LTC1707CS8 350kHz Constant Freq. Step Down Regulator, 1 or 2 Li-Ion or 2 to 6 NiCd Cell Input, 600mA Output
Datasheet: DC257A Datasheet (PDF)
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 175.8075 ea
Line Total: USD 175.81 
Availability - 0
MOQ: 1  Multiples: 1
Pack Size: 1
Availability Price Quantity
0
Ship by Tue. 31 Dec to Mon. 06 Jan
MOQ : 1
Multiples : 1
1 : USD 175.8075

0
Ship by Tue. 31 Dec to Mon. 06 Jan
MOQ : 1
Multiples : 1
1 : USD 162.4083
10 : USD 159.747
25 : USD 157.1661
50 : USD 154.6745
100 : USD 152.6652

0
Ship by Fri. 27 Dec to Tue. 31 Dec
MOQ : 1
Multiples : 1
1 : USD 179.7243

   
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We are delighted to provide the DC257A from our Power Management IC Development Tools category, at competitive rates not only in the United States, Australia, and India, but also across Europe and beyond. A long established and extensive electronic component distribution network has enhanced our global reach and dependability, ensuring cost savings through prompt deliveries worldwide. Client satisfaction is at the heart of our business, where every component counts and every customer matters. Our technical service team is ready to assist you. From product selection to after-sales support, we strive to deliver a seamless and satisfying experience. Are you ready to experience the best in electronic component distribution? Contact X-ON Electronics today and discover why X-On are a preferred choice for the DC257A and other electronic components in the Power Management IC Development Tools category and beyond.

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DEMO MANUAL DC257 NO-DESIGN SWITCHER LTC1707 Monolithic Synchronous Step-Down Regulator U DESCRIPTIO Demonstration circuit DC257 is a constant-frequency it ideal for single lithium-ion battery applications. DC257s step-down converter using an LTC 1707 monolithic syn- output voltage is programmable from 1.5V to 3.3V via a chronous regulator. It provides low input voltage, high jumper. conversion efficiency for cell phones and other portable At low output currents, the LTC1707 automatically switches electronics operating from one or two Li-Ion cells or three TM to Burst Mode operation to reduce switching losses and to six NiCd cells. Constant 350kHz operation and up to maintain high operating efficiencies. In switching-noise 600mA output capability in an SO-8 package provide a low sensitive applications, Burst Mode operation can be inhib- noise, space-efficient solution for wireless applications. ited by grounding the SYNC/MODE pin or synchronizing it The circuit highlights the capability of the LTC1707. De- with an external clock. Gerber files for this circuit board signed to work at low voltages, the input voltage (V ) can are available. Call the LTC factory. IN range from 2.85V to 8.5V. At V < 2.7V, the LTC1707 IN , LTC and LT are registered trademarks of Linear Technology Corporation. shuts down and draws just a few microamperes, making Burst Mode is a trademark of Linear Technology Corporation. WWU W PERFOR A CE SU ARY SYMBOL PARAMETER CONDITIONS JUMPER POSITION VALUE V Input Voltage Range 2.85V to 8.5V IN V Output Voltage See Figure 2 JP1 = 1.5V 1.51V 0.036V OUT JP1 = 1.8V 1.82V 0.043V JP1 = 2.5V 2.52V 0.06V JP1 = 2.9V 2.94V 0.07V JP1 = 3.3V 3.33V 0.079V JP1 = OPEN Note 1 I Pulse Skipping Mode Supply Current V = 5V, SYNC/MODE = 0V, RUN/SS = 2V, I = 0mA JP1 = 3.3V 300m A Q IN OUT Burst Mode Enabled Supply Current V = 5V, SYNC/MODE = 2V, RUN/SS = 2V, I = 0mA JP1 = 3.3V 200m A IN OUT Shutdown Current V = 5V, RUN/SS = 0V, I = 0mA JP1 = 3.3V 15m A IN OUT W U U TYPICAL PERFOR A CE CHARACTERISTICS A D BOARD PHOTO LTC1707 Efficiency Curve Demo Board 100 V = 3.3V OUT V = 3.6V IN 95 V = 6V IN 90 85 V = 8.4V IN 80 75 70 1 10 100 1000 OUTPUT CURRENT (mA) DC257 TA01 1 EFFICIENCY (%)DEMO MANUAL DC257 NO-DESIGN SWITCHER PERFOR A CE SU ARY SYMBOL PARAMETER CONDITIONS JUMPER POSITION VALUE I Minimum Output Current V = 5V, V = 2.5V 600mA OUT IN OUT V = 5V, V = 3.3V 500mA IN OUT V = 3V, V = 2.5V 300mA IN OUT f Operating Frequency Unsynchronized All 350kHz OSC Synchronized All 385kHz to 550kHz V Typical Output Ripple I = 500mA, V = 5V, V = 3.3V 30mV RIPPLE OUT IN OUT P-P V Typical Load Regulation 0mA < I < 0.5A, V = 5V, V = 3.3V 0.5% OUT OUT IN OUT V Synchronize Threshold Voltage All 1.2V SYNC V Minimum Shutdown Threshold Voltage All 0.4V RUN/SS V Reference Output Voltage I = 0 All 1.19V REF REF I Maximum V Output Currrent All 100m A REF REF Note 1: Programmable via optional R6. V = 0.8V(1 + 210k/R6) OUT PACKAGE A D SCHE ATIC DIAGRA S TOP VIEW I 1 8 V TH REF RUN/SS 2 7 SYNC/MODE C V V C2 3 6 FB IN 47pF GND 4 5 SW S8 PACKAGE 8-LEAD PLASTIC SO OPTIONAL LTC1707CS8 C C1 R C 1 8 E1 II V THTH REF V REF 2 7 SYNC/ E8 RUN/SS MODE SYNC/MODE LTC1707 C SS 3 6 E2 0.1F V V FB IN V 8.5V IN L1 15H 4 5 E7 GND SW V OUT R7 R8 210k 10 E6 V OSENSE + C + C IN OUT C REF 22F 100F E3 1000pF R1 R2 R3 R4 R5 R6* 16V 6.3V RUN/SS 237k 165k 97.6k 78.7k 66.5k OPTIONAL JP2 1.5V 1.8V 2.5V 3.3V OPEN 2.9V E4/E5 DC257 F01 GND *SPACE IS PROVIDED FOR AN OPTIONAL RESISTOR TO PROGRAM A CUSTOM OUTPUT VOLTAGE. THE OUTPUT VOLTAGE MUST NOT EXCEED 3.3V Figure 1. LTC1707 Constant Frequency, High Efficiency Converter 2 W WU WW U W

Tariff Desc

8543.70.00 Other machines and apparatus Free
13 Signal processors (graphic equalisers, crossovers etc.) 91 Other Free

9027.10.00 Instruments and apparatus for physical or chemical analysis (eg, polarimeters, refractometers, spectrometers, gas or smoke analysis apparatus); instruments and apparatus for measuring or checking viscosity, porosity, expansion, surface tension or the like; instruments and apparatus for measuring or checking quantities of heat, sound or light (including exposure meters); microtomes Free

9031.80.00 MEASURING OR CHECKING INSTRUMENTS, APPLIANCES AND MACHINES, NOT SPECIFIED OR INCLUDED ELSEWHERE IN THIS CHAPTER; PROFILE PROJECTORS Other instruments, appliances and machines Free

9030.31.00 Oscilloscopes, spectrum analysers and other instruments and apparatus for measuring or checking electrical quantities, excluding meters of 9028; instruments and apparatus for measuring or detecting alpha, beta, gamma, x-ray, cosmic or other ionising radiations.
Other instruments and apparatus, for measuring or checking voltage, current, resistance or power Multimeters without a recording device Free

8473.30.00 Parts and accessories of the machines of 8471 AUTOMATIC DATA PROCESSING MACHINES AND UNITS THEREOF; MAGNETIC OR OPTICAL READERS, MACHINES FOR TRANSCRIBING DATA ONTO DATA MEDIA IN CODED FORM AND MACHINES FOR PROCESSING SUCH DATA, NOT ELSEWHERE SPECIFIED OR INCLUDED:
.Other 71 No Weighing less than 1kg Free

8537 BOARDS, PANELS, CONSOLES, DESKS, CABINETS AND OTHER BASES, EQUIPPED WITH TWO OR MORE APPARATUS OF 8535 OR 8536, FOR ELECTRIC CONTROL OR THE DISTRIBUTION OF ELECTRICITY, INCLUDING THOSE INCORPORATING INSTRUMENTS OR APPARATUS OF CHAPTER 90, AND NUMERICAL CONTROL APPARATUS, OTHER THAN SWITCHING APPARATUS OF 8517:
8538 PARTS SUITABLE FOR USE SOLELY OR PRINCIPALLY WITH THE APPARATUS OF 8535, 8536 OR 8537:
8538.10.10 22 For programmable controllers Free
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