LTC3546EUFD#PBF Electronic Ic Chips Color TV Ic chip , ic diode 20mA to 30A Current
electronic integrated circuit
,linear integrated circuits
LTC3546EUFD#PBF Electronic Ic Chip Color TV Ic chip ic diode
Dual Synchronous, 3A/1A or 2A/2A Confi gurable Step-Down DC/DC Regulator
FEATURES:
n VIN Range: 2.25V to 5.5V n VOUT Range: 0.6V to 5V
n Programmable Frequency Operation; 2.25MHz, or Adjustable Between 0.75MHz to 4MHz
n Low RDS(ON) Internal Switches
n High Effi ciency: Up to 96%
n No Schottky Diodes Required
n Short-Circuit Protected n Current Mode Operation for Excellent Line and Load Transient Response
n Low Ripple Burst Mode Operation (30mVP-P), IQ = 160μA
n Ultralow Shutdown Current: IQ < 1μA
n Low Dropout Operation: 100% Duty Cycle
n Power Good Output For Each Channel
n Externally or Internally Programmable Burst Level
n External or Internal Soft-Start or Supply Tracking
n Available in Thermally Enhanced 28-Lead (4mm × 5mm) QFN and TSSOP Packages
General Description
The LTC®3546 is a dual, constant-frequency, synchronous step down DC/DC converter for medium power applications. The design consists of 2A and 1A primary output switches.
In addition to the 2A/1A capability, a 1A dependant output switch can be externally connected to either of the primary outputs to produce 3A/1A dual regulator or 2A/2A dual regulator confi gurations. Supply operation is from 2.25V to 5.5V.
The switching frequency can be set to 2.25MHz, adjustable 0.75MHz to 4MHz, or synchronized to an external clock. Each output is adjustable from 0.6V to 5V and has output tracking on power-up. Internal synchronous low RDS(ON) power switches provide high effi ciency without external Schottky diodes. User-selectable modes (Burst Mode® operation, pulse skipping and forced continuous) allow trade-off between ripple noise and power effi ciency.
Burst Mode operation provides high effi ciency at light loads. Pulse-skipping mode provides low ripple noise at light loads. The device is capable of low dropout confi gurations and both channels can operate at 100% duty cycle. In shutdown, the device draws <1μA.
ABSOLUTE MAXIMUM RATINGS(1)
VIN1, VIN1D, VIN2, VCCA, VCCD Voltages ......... –0.3V to 6V |
| TRANS BC847BLT1 | 18000 | ON | CHINA |
| RC0805JR-0710KL | 35000 | YAGEO | CHINA |
| RC0805JR-071KL | 20000 | YAGEO | CHINA |
| DIODO DF06S | 3000 | SEP | CHINA |
| CAP 0805 330NF 100V C2012X7S2A334K125AB | 20000 | TDK | JAPAN |
| DIODO US1A-13-F | 50000 | DIODES | MALAYSIA |
| INDUTOR. 100UH SLF7045T-101MR50-PF | 10000 | TDK | JAPAN |
| RES 470R 5% RC0805JR-07470RL | 500000 | YAGEO | CHINA |
| RES 1206 2M 1% RC1206FR-072ML | 500000 | YAGEO | CHINA |
| DIODO P6KE180A | 10000 | VISHAY | MALAYSIA |
| RES 1206 470R 5% RC1206JR-07470RL | 500000 | YAGEO | CHINA |
| DIODO UF4007 AMMO | 500000 | MIC | CHINA |
| TRANS. ZXMN10A09KTC | 20000 | ZETEX | TAIWAN |
| RES 0805 4K7 5% RC0805JR-074K7L | 500000 | YAGEO | CHINA |
| ACOPLADOR OTICO. MOC3021S-TA1 | 10000 | LITE-ON | TAIWAN |
| TRANS MMBT2907A-7-F | 30000 | DIODES | MALAYSIA |
| TRANS STGW20NC60VD | 1000 | ST | MALAYSIA |
| C.I LM2576HVT-ADJ/NOPB | 500 | TI | THAILAND |
| C.I MC33298DW | 1000 | MOT | MALAYSIA |
| C.I MC908MR16CFUE | 840 | FREESCAL | MALAYSIA |
| C.I P8255A5 | 4500 | INTEL | JAPAN |
| C.I HM6116P-2 | 5000 | HITACHI | JAPAN |
| C.I DS1230Y- 150 | 2400 | DALLAS | PHILIPPINES |
| TRANS. ZXMN10A09KTC | 18000 | ZETEX | TAIWAN |
| TRIAC BT151-500R | 500000 | MOROCCO | |
| C.I HCNR200-000E | 1000 | AVAGO | TAIWAN |
| TRIAC TIC116M | 10000 | TI | THAILAND |
| DIODO US1M-E3/61T | 18000 | VISHAY | MALAYSIA |
| DIODO ES1D-E3-61T | 18000 | VISHAY | MALAYSIA |
| C.I MC908MR16CFUE | 840 | FREESCAL | TAIWAN |
| C.I CD40106BE | 250 | TI | THAILAND |
| ACOPLADOR PC733H | 1000 | SHARP | JAPAN |
| TRANS NDT452AP | 5200 | FSC | MALAYSIA |
| CI LP2951-50DR | 1200 | TI | THAILAND |
| CI MC7809CD2TR4G | 1200 | ON | MALAYSIA |
| DIODO MBR20200CTG | 22000 | ON | MALAYSIA |
| FUSIVEL 30R300UU | 10000 | LITTELFUSEI | TAIWAN |
| C.I TPIC6595N | 10000 | TI | THAILAND |
| EPM7064STC44-10N | 100 | ALTERA | MALAYSIA |
| DIODO 1N4004-T | 5000000 | MIC | CHINA |
| C.I CD4060BM | 500 | TI | THAILAND |
| ACOPLADOR MOC3020M | 500 | FSC | MALAYSIA |
| DIODO W08 | 500 | SEP | CHINA |
| C.I SN74HC373N | 1000 | TI | PHILIPPINES |
| PHOTOSENSOR 2SS52M | 500 | honeywell | JAPAN |
| C.I SN74HC02N | 1000 | TI | THAILAND |
| C.I CD4585BE | 250 | TI | THAILAND |
| C.I MT46H32M16LFBF-6IT:C | 40 | MICRON | MALAYSIA |
| DIODO MMSZ5242BT1G | 30000 | ON | MALAYSIA |
AOZ1021AI Electronic IC Chip NEW AND ORIGINAL STOCK
AOZ1210AI Electronic IC Chip NEW AND ORIGINAL STOCK
TNY274GN NEW AND ORIGINAL STOCK
| Image | Part # | Description | |
|---|---|---|---|
|
|
AOZ1021AI Electronic IC Chip NEW AND ORIGINAL STOCK |
Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 3A 8-SOIC (0.154", 3.90mm Width)
|
|
|
|
AOZ1210AI Electronic IC Chip NEW AND ORIGINAL STOCK |
Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 2A 8-SOIC (0.154", 3.90mm Width)
|
|
|
|
TNY274GN NEW AND ORIGINAL STOCK |
Converter Offline Flyback Topology 132kHz SMD-8C
|