Product Information

LTC1875EGN#PBF

LTC1875EGN#PBF electronic component of Analog Devices

Datasheet
Switching Voltage Regulators 15uA Quiescent Current, 1.5A Synch Step-dwn 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)

100: USD 5.5667 ea
Line Total: USD 556.67

0 - Global Stock
MOQ: 100  Multiples: 1
Pack Size: 1
Availability Price Quantity
0 - Global Stock


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

MOQ : 1
Multiples : 1

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LTC1875EGN#PBF
Analog Devices

1 : USD 12.4337
10 : USD 10.9148
50 : USD 10.1896
100 : USD 8.943
200 : USD 8.6759
500 : USD 8.0144
1000 : USD 7.4291

0 - Global Stock


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

MOQ : 1
Multiples : 1

Stock Image

LTC1875EGN#PBF
Analog Devices

1 : USD 11.2266
2 : USD 7.8255
6 : USD 7.3956

     
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
Height
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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LTC1875 15m A Quiescent Current 1.5A Monolithic Synchronous Step-Down Regulator FEATURES DESCRIPTIO n High Efficiency: Up to 95% The LTC 1875 is a high efficiency 1.5A monolithic syn- n Low Quiescent Current: Only 15m A with No Load chronous buck regulator using a constant frequency, n 550kHz Constant Frequency Operation current mode architecture. Operating supply current is n 2.65V to 6V Input Voltage Range only 15m A with no load and drops to <1m A in shutdown. n V from 0.8V to V , I to 1.5A The input supply voltage range of 2.65V to 6V makes the OUT IN OUT n True PLL Frequency Locking from 350kHz to 750kHz LTC1875 ideally suited for single Li-Ion battery-powered n Power Good Output Voltage Monitor applications. 100% duty cycle provides low dropout op- n Low Dropout Operation: 100% Duty Cycle eration, extending battery life in portable systems. n Burst Mode or Pulse Skipping Operation The switching frequency is internally set to 550kHz, allow- n Current Mode Operation for Excellent Line and Load ing the use of small surface mount inductors and capaci- Transient Response tors. For noise sensitive applications, the LTC1875 can be n Shutdown Mode Draws <1m A Supply Current externally synchronized from 350kHz to 750kHz. Burst n 2% Output Voltage Accuracy Mode operation is inhibited during synchronization or n Overcurrent and Overtemperature Protected when the SYNC/MODE pin is pulled low. n Available in 16-Lead SSOP Package The internal synchronous switch increases efficiency and U eliminates the need for an external Schottky diode. Low APPLICATIO S output voltages are easily supported with a 0.8V feedback reference voltage. The LTC1875 is available in a 16-lead n Portable Computers SSOP package. n Portable Instruments , LTC and LT are registered trademarks of Linear Technology Corporation. n Wireless Modems Burst Mode is a registered trademark of Linear Technology Corporation. TYPICAL APPLICATIO High Efficiency Step-Down Converter Efficiency vs Output Load Current V IN 2.65V TO 6V 100 C IN V = 3.6V 22F IN 95 SV IN RUN/SS PV IN 90 L1 V = 4.2V 85 IN SYNC/MODE SWP 6.8H V * OUT V = 6V IN LTC1875 80 3.3V PGOOD SWN + 75 C OUT 150k 47F I PGND TH 70 88.7k 47pF 220pF 65 V FB Burst Mode OPERATION SGND 60 V = 3.3V 28.0k OUT L = 6.8H 55 1875 TA01 0.1 1 10 100 1000 C : TAIYO YUDEN CERAMIC JMK325BJ226MM IN OUPUT CURRENT (mA) C : SANYO POSCAP 6TPA47M OUT 1875 TA01a L1: TOKO 646CY-6R8M *V CONNECTED TO V (MINUS SWITCH AND L1 VOLTAGE DROP) FOR 2.65V < V < 3.3V OUT IN IN 1875f 1 EFFICIENCY (%) U ULTC1875 ABSOLUTE MAXIMUM RATINGS PACKAGE/ORDER INFORMATION (Note 1) ORDER PART Input Supply Voltage .................................. 0.3V to 7V TOP VIEW NUMBER I , PLL LPF Voltages ............................. 0.3V to 2.7V TH SGND 1 16 PLL LPF RUN/SS, V Voltages ............................... 0.3V to V FB IN RUN/SS 2 15 SYNC/MODE LTC1875EGN SYNC/MODE Voltage ................................. 0.3V to V IN V 3 14 PGOOD FB (V V ) Voltage............................... 0.3V to 7V PVIN SWP I 4 13 SV TH IN V Voltage .............................................. 0.3V to 7V SWN SWP1 5 12 SWP2 P-Channel Switch Source Current (DC) .................... 2A SWN1 6 11 SWN2 GN PART N-Channel Switch Sink Current (DC) ........................ 2A PGND1 7 10 PGND2 MARKING Peak Switching Sink and Source Current ................. 3A PV 8 9 PV IN1 IN2 Operating Ambient Temperature Range 1875 GN PACKAGE 16-LEAD PLASTIC SSOP (Note 2) ............................................. 40 C to 85 C T = 125 C, q = 110 C/ W, q = 40 C/ W JMAX JA JC Junction Temperature (Note 3, 6)........................ 125 C Storage Temperature Range ................ 65 C to 150 C Lead Temperature (Soldering, 10 sec)................. 300 C Consult LTC Marketing for parts specified with wider operating temperature ranges. ELECTRICAL CHARACTERISTICS The l denotes specifications which apply over the full operating temperature range, otherwise specifications are T = 25 C. V = 3.6V unless otherwise noted. A IN SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS I Feedback Current (Note 4) l 860 nA VFB V Regulated Output Voltage (Note 4) 0 C T 85 C 0.784 0.80 0.816 V FB A (Note 4) 40 C T 85 C l 0.740 0.80 0.840 V A D V Overvoltage Trip Limit with Respect to V D V = V V l 20 60 110 mV OVL FB OVL OVL FB D V Undervoltage Trip Limit with Respect to V D V = V V l 20 60 110 mV UVL FB UVL FB UVL D V /V Reference Voltage Line Regulation V = 2.65V to 6V (Note 4) 0.05 0.25 %/V FB FB IN V Output Voltage Load Regulation Measured in Servo Loop, V = 0.9V to 1.2V l 0.1 0.6 % LOADREG ITH Measured in Servo Loop, V = 1.6V to 1.2V l 0.1 0.6 % 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 270 365 m A IN SYNC/MODE OUT Burst Mode Operation V = V , I = 0A 15 22 m A SYNC/MODE IN OUT Shutdown V = 0V, V = 6V 0 1 m A RUN IN f SYNC Capture Range 350 750 kHz SYNC f Oscillator Frequency V 0.7V 495 550 605 kHz OSC FB = 0V 80 kHz V FB I Phase Detector Output Current PLLLPF Sinking Capability f < f l 3 10 20 m A PLLIN OSC Sourcing Capability f > f l 3 10 20 m A PPLIN SOC R R of P-Channel FET I = 100mA, V = 5V 0.28 0.35 W PFET DS(ON) SW IN R R of N-Channel FET I = 100mA, V = 5V 0.35 0.4 W NFET DS(ON) SW IN I Peak Inductor Current V = 0.7V, Duty Cycle < 35%, V = 3V 1.6 2.15 2.75 A PK FB IN I SW Leakage V = 0V, V = 0V or 6V, V = 6V 0.01 2.5 m A LSW RUN SW IN V SYNC/MODE Threshold l 0.2 1.0 1.5 V SYNC/MODE I SYNC/MODE Leakage Current 0.01 1 m A SYNC/MODE 1875f 2 U W U 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:
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