ADI LTC3448EDD#TRPBF
| Manufacturer | |
| MPN | LTC3448EDD#TRPBF |
| LCSC Part # | C684797 |
| Packaging | DFN-8-EP(3x3) |
| Customer # | |
| Key Attributes | 2.25MHz Step-down type Adjustable 600mA 600mV~5.2V DFN-8-EP(3x3) Voltage Regulators - DC DC Switching Regulators RoHS |
| Datasheet | ADI LTC3448EDD#TRPBF |
| RoHS Compliance | 1 documents available |
| Alternative Parts | 12 |
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators | |
| Manufacturer | ADI | |
| Packaging | DFN-8-EP(3x3) | |
| Operating Temperature | -40℃~+85℃@(TA) | |
| Frequency - Switching | 2.25MHz | |
| Function | Step-down type | |
| Number of Outputs | 1 | |
| Features | Frequency synchronization;Light load efficient mode;Overcurrent Protection | |
| Output Type | Adjustable | |
| Topology | Buck | |
| Operating Voltage | 2.5V~5.5V | |
| Switch tube (built-in/external) | Built-in | |
| Output Current | 600mA | |
| Output Voltage | 600mV~5.2V | |
| Quiescent Current | 32uA |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators | |
| Manufacturer | ADI | |
| Packaging | DFN-8-EP(3x3) | |
| Operating Temperature | -40℃~+85℃@(TA) | |
| Frequency - Switching | 2.25MHz | |
| Function | Step-down type | |
| Number of Outputs | 1 | |
| Features | Frequency synchronization;Light load efficient mode;Overcurrent Protection |
| Type | Description | |
|---|---|---|
| Output Type | Adjustable | |
| Topology | Buck | |
| Operating Voltage | 2.5V~5.5V | |
| Switch tube (built-in/external) | Built-in | |
| Output Current | 600mA | |
| Output Voltage | 600mV~5.2V | |
| Quiescent Current | 32uA |
Introduction
The LTC3448 is a high efficiency, monolithic, synchronous buck regulator using a constant frequency, current mode architecture. Supply current during operation is only 32µA (linear regulator mode) and drops to <1µA in shutdown. The 2.5V to 5.5V input voltage range makes the LTC3448 ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. At moderate output load levels, PWM pulse skipping mode operation provides very low output ripple voltage for noise sensitive applications. The LTC3448 automatically switches into linear regulator operation at very low load currents to maintain <5mVP-P output voltage ripple. Supply current in this mode is typically 32µA. The switch to linear regulator mode occurs at a threshold of 3mA. Linear regulator operation can be set to on, off or automatic turn on/off. Switching frequency is selectable at either 1.5MHz or 2.25MHz, allowing the use of small surface mount inductors and capacitors. The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. Low output voltages are easily supported with the 0.6V feedback reference voltage. The LTC3448 is available in a low profile (3mm×3mm) 8-Lead DFN and 8-Lead MSOP Packages.
Features
- High Efficiency: Up to 96%
- Very Low Quiescent Supply Current: 32µA During Linear Regulator Operation
- 600mA Output Current (Buck Converter)
- Optionally Operates as Linear Regulator Below 3mA—External or Automatic ON/OFF
- 2.5V to 5.5V Input Voltage Range
- 1.5MHz or 2.25MHz Constant Frequency Operation or External Synchronization
- No Schottky Diode Required
- Low Dropout Operation: 100% Duty Cycle
- 0.6V Reference Allows Low Output Voltages
- Shutdown Mode Draws <1µA Supply Current
- Current Mode Operation for Excellent Line and Load Transient Response
- Overtemperature Protected
- Low Profile (3mm×3mm) 8-Lead DFN and 8-Lead MSOP Packages
Applications
- Cellular Telephones
- Personal Information Appliances
- Wireless and DSL Modems
- Digital Still Cameras
- MP3 Players
- Portable Instruments
| Qty | Unit Price(Reference Only) | Total Amount |
|---|---|---|
| 1+ | $ 3.8881 | $ 3.89 |
| 200+ | $ 1.5049 | $ 300.98 |
| 500+ | $ 1.4525 | $ 726.25 |
| 1,000+ | $ 1.4262 | $ 1426.20 |
Standard Packaging2500/Full Reel | ||
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators | |
| Manufacturer | ADI | |
| Packaging | DFN-8-EP(3x3) | |
| Operating Temperature | -40℃~+85℃@(TA) | |
| Frequency - Switching | 2.25MHz | |
| Function | Step-down type | |
| Number of Outputs | 1 | |
| Features | Frequency synchronization;Light load efficient mode;Overcurrent Protection | |
| Output Type | Adjustable | |
| Topology | Buck | |
| Operating Voltage | 2.5V~5.5V | |
| Switch tube (built-in/external) | Built-in | |
| Output Current | 600mA | |
| Output Voltage | 600mV~5.2V | |
| Quiescent Current | 32uA |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators | |
| Manufacturer | ADI | |
| Packaging | DFN-8-EP(3x3) | |
| Operating Temperature | -40℃~+85℃@(TA) | |
| Frequency - Switching | 2.25MHz | |
| Function | Step-down type | |
| Number of Outputs | 1 | |
| Features | Frequency synchronization;Light load efficient mode;Overcurrent Protection |
| Type | Description | |
|---|---|---|
| Output Type | Adjustable | |
| Topology | Buck | |
| Operating Voltage | 2.5V~5.5V | |
| Switch tube (built-in/external) | Built-in | |
| Output Current | 600mA | |
| Output Voltage | 600mV~5.2V | |
| Quiescent Current | 32uA |
Introduction
The LTC3448 is a high efficiency, monolithic, synchronous buck regulator using a constant frequency, current mode architecture. Supply current during operation is only 32µA (linear regulator mode) and drops to <1µA in shutdown. The 2.5V to 5.5V input voltage range makes the LTC3448 ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. At moderate output load levels, PWM pulse skipping mode operation provides very low output ripple voltage for noise sensitive applications. The LTC3448 automatically switches into linear regulator operation at very low load currents to maintain <5mVP-P output voltage ripple. Supply current in this mode is typically 32µA. The switch to linear regulator mode occurs at a threshold of 3mA. Linear regulator operation can be set to on, off or automatic turn on/off. Switching frequency is selectable at either 1.5MHz or 2.25MHz, allowing the use of small surface mount inductors and capacitors. The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. Low output voltages are easily supported with the 0.6V feedback reference voltage. The LTC3448 is available in a low profile (3mm×3mm) 8-Lead DFN and 8-Lead MSOP Packages.
Features
- High Efficiency: Up to 96%
- Very Low Quiescent Supply Current: 32µA During Linear Regulator Operation
- 600mA Output Current (Buck Converter)
- Optionally Operates as Linear Regulator Below 3mA—External or Automatic ON/OFF
- 2.5V to 5.5V Input Voltage Range
- 1.5MHz or 2.25MHz Constant Frequency Operation or External Synchronization
- No Schottky Diode Required
- Low Dropout Operation: 100% Duty Cycle
- 0.6V Reference Allows Low Output Voltages
- Shutdown Mode Draws <1µA Supply Current
- Current Mode Operation for Excellent Line and Load Transient Response
- Overtemperature Protected
- Low Profile (3mm×3mm) 8-Lead DFN and 8-Lead MSOP Packages
Applications
- Cellular Telephones
- Personal Information Appliances
- Wireless and DSL Modems
- Digital Still Cameras
- MP3 Players
- Portable Instruments
C684797 EasyEDA Library
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 Compliant |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
| Type | Details |
|---|---|
| RoHS | ROHS3 Compliant |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
Alternative Parts
| MPN | Manufacturer | Packaging | Availability | Unit Price | ||
|---|---|---|---|---|---|---|
| LTC3419EDD#PBF | ADI | DFN-8-EP(3x3) | 10 | $ 9.0853 | ||
| L6926Q1TR | ST | VFQFPN-8(3x3) | 10 | $ 2.1431 | ||
| LTC3448EDD#PBF | ADI | DFN-8-EP(3x3) | 0 | $ 3.9925 | ||
| LTC3606BEDD#PBF | ADI | DFN-8-EP(3x3) | 0 | $ 7.1799 | ||
| LTC3606BEDD#TRPBF | ADI | DFN-8-EP(3x3) | 0 | $ 3.905 | ||
| LTC3606BIDD#PBF | ADI | DFN-8-EP(3x3) | 0 | $ 4.561 | ||
| LTC3606BIDD#TRPBF | ADI | DFN-8-EP(3x3) | 0 | $ 4.561 | ||
| LTC3419EDD#TRPBF | ADI | DFN-8-EP(3x3) | 0 | $ 3.6287 | ||
| LTC3419IDD#PBF | ADI | DFN-8-EP(3x3) | 0 | $ 4.127 | ||
| LTC3419IDD#TRPBF | ADI | DFN-8-EP(3x3) | 0 | $ 3.9683 | ||
| L6926Q1 | ST | VFQFPN-8(3x3) | 0 | $ 1.7951 | ||
| L6928Q1 | ST | VFQFPN-8(3x3) | 0 | $ 1.7951 |