ADI LTC7800EUDC#TRPBF
| Manufacturer | |
| MPN | LTC7800EUDC#TRPBF |
| LCSC Part # | C690193 |
| Packaging | QFN-20-EP(3x4) |
| Customer # | |
| Key Attributes | 1 Adjustable 800mV~24V Step-down type QFN-20-EP(3x4) DC DC Switching Controllers RoHS |
| Datasheet |
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers | |
| Manufacturer | ADI | |
| Packaging | QFN-20-EP(3x4) | |
| Synchronous Rectifier | Yes | |
| Operating Temperature | -40℃~+125℃@(TJ) | |
| Features | Adjustable current limiting;Adjustable soft-start;Frequency synchronization;Light load efficient mode;Output voltage tracking;Operating status indication;Overcurrent Protection;Built-in LDO regulator | |
| Output Current | - | |
| Number of Channels | 1 | |
| Topology | Buck | |
| Frequency - Switching | 2.25MHz | |
| Operating Voltage | 4V~60V | |
| Output Type | Adjustable | |
| Switch tube (built-in/external) | External | |
| Output Voltage | 800mV~24V | |
| Function | Step-down type | |
| Quiescent Current | 50uA |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers | |
| Manufacturer | ADI | |
| Packaging | QFN-20-EP(3x4) | |
| Synchronous Rectifier | Yes | |
| Operating Temperature | -40℃~+125℃@(TJ) | |
| Features | Adjustable current limiting;Adjustable soft-start;Frequency synchronization;Light load efficient mode;Output voltage tracking;Operating status indication;Overcurrent Protection;Built-in LDO regulator | |
| Output Current | - | |
| Number of Channels | 1 |
| Type | Description | |
|---|---|---|
| Topology | Buck | |
| Frequency - Switching | 2.25MHz | |
| Operating Voltage | 4V~60V | |
| Output Type | Adjustable | |
| Switch tube (built-in/external) | External | |
| Output Voltage | 800mV~24V | |
| Function | Step-down type | |
| Quiescent Current | 50uA |
Introduction
The LTC7800 is a high performance step-down switching regulator DC/DC controller that drives an all N-channel synchronous power MOSFET stage. A constant frequency current mode architecture allows a phase-lockable frequency of up to 2.25MHz. The 50μA no-load quiescent current extends operating run time in battery-powered systems. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC7800 features a precision 0.8V reference and power good output indicator. A wide 4V to 60V input supply range encompasses a wide range of intermediate bus voltages and battery chemistries. The output voltage of the LTC7800 can be programmed between 0.8V to 24V. The TRACK/SS pin ramps the output voltages during start-up. Current foldback limits MOSFET heat dissipation during short-circuit conditions. The PLLIN/MODE pin selects among Burst Mode operation, pulse-skipping mode, or continuous conduction mode at light loads.
Features
- Wide VIN Range: 4V to 60V (65V Abs Max)
- Low Operating IQ: 500μA
- Wide Output Voltage Range: 0.8V ≤ VOUT ≤ 24V
- RSENSE or DCR Current Sensing
- Phase-Lockable Frequency (320kHz to 2.25MHz)
- Programmable Fixed Frequency (320kHz to 2.25MHz)
- Selectable Continuous, Pulse-Skipping or Low Ripple Burst Mode Operation at Light Load
- Selectable Current Limit
- Very Low Dropout Operation: 98% Duty Cycle
- Adjustable Output Voltage Soft-Start or Tracking
- Power Good Output Voltage Monitor
- Output Overvoltage Protection
- Low Shutdown IQ: < 14μA
- Internal LDO Powers Gate Drive from VIN or EXTVCC
- No Current Foldback During Start-Up
- Small 20-Pin 3mm × 4mm QFN Package
Applications
- Automotive Always-On Systems
- Battery Powered Digital Devices
- Distributed DC Power Systems
| Qty | Unit Price(Reference Only) | Total Amount |
|---|---|---|
| 1+ | $ 6.6962 | $ 6.70 |
| 200+ | $ 2.592 | $ 518.40 |
| 500+ | $ 2.5012 | $ 1250.60 |
| 1,000+ | $ 2.4558 | $ 2455.80 |
Standard Packaging2500/Full Reel | ||
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers | |
| Manufacturer | ADI | |
| Packaging | QFN-20-EP(3x4) | |
| Synchronous Rectifier | Yes | |
| Operating Temperature | -40℃~+125℃@(TJ) | |
| Features | Adjustable current limiting;Adjustable soft-start;Frequency synchronization;Light load efficient mode;Output voltage tracking;Operating status indication;Overcurrent Protection;Built-in LDO regulator | |
| Output Current | - | |
| Number of Channels | 1 | |
| Topology | Buck | |
| Frequency - Switching | 2.25MHz | |
| Operating Voltage | 4V~60V | |
| Output Type | Adjustable | |
| Switch tube (built-in/external) | External | |
| Output Voltage | 800mV~24V | |
| Function | Step-down type | |
| Quiescent Current | 50uA |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers | |
| Manufacturer | ADI | |
| Packaging | QFN-20-EP(3x4) | |
| Synchronous Rectifier | Yes | |
| Operating Temperature | -40℃~+125℃@(TJ) | |
| Features | Adjustable current limiting;Adjustable soft-start;Frequency synchronization;Light load efficient mode;Output voltage tracking;Operating status indication;Overcurrent Protection;Built-in LDO regulator | |
| Output Current | - | |
| Number of Channels | 1 |
| Type | Description | |
|---|---|---|
| Topology | Buck | |
| Frequency - Switching | 2.25MHz | |
| Operating Voltage | 4V~60V | |
| Output Type | Adjustable | |
| Switch tube (built-in/external) | External | |
| Output Voltage | 800mV~24V | |
| Function | Step-down type | |
| Quiescent Current | 50uA |
Introduction
The LTC7800 is a high performance step-down switching regulator DC/DC controller that drives an all N-channel synchronous power MOSFET stage. A constant frequency current mode architecture allows a phase-lockable frequency of up to 2.25MHz. The 50μA no-load quiescent current extends operating run time in battery-powered systems. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC7800 features a precision 0.8V reference and power good output indicator. A wide 4V to 60V input supply range encompasses a wide range of intermediate bus voltages and battery chemistries. The output voltage of the LTC7800 can be programmed between 0.8V to 24V. The TRACK/SS pin ramps the output voltages during start-up. Current foldback limits MOSFET heat dissipation during short-circuit conditions. The PLLIN/MODE pin selects among Burst Mode operation, pulse-skipping mode, or continuous conduction mode at light loads.
Features
- Wide VIN Range: 4V to 60V (65V Abs Max)
- Low Operating IQ: 500μA
- Wide Output Voltage Range: 0.8V ≤ VOUT ≤ 24V
- RSENSE or DCR Current Sensing
- Phase-Lockable Frequency (320kHz to 2.25MHz)
- Programmable Fixed Frequency (320kHz to 2.25MHz)
- Selectable Continuous, Pulse-Skipping or Low Ripple Burst Mode Operation at Light Load
- Selectable Current Limit
- Very Low Dropout Operation: 98% Duty Cycle
- Adjustable Output Voltage Soft-Start or Tracking
- Power Good Output Voltage Monitor
- Output Overvoltage Protection
- Low Shutdown IQ: < 14μA
- Internal LDO Powers Gate Drive from VIN or EXTVCC
- No Current Foldback During Start-Up
- Small 20-Pin 3mm × 4mm QFN Package
Applications
- Automotive Always-On Systems
- Battery Powered Digital Devices
- Distributed DC Power Systems
C690193 EasyEDA Library
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
| Type | Details |
|---|---|
| RoHS | |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |

