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Features
| | Input voltage range 2.7V to 5.5V |
| | Output voltage range 3V to 24V |
| | 2.1A switch current over full temperature range |
| | Current-Mode control |
| | Logic high enable pin |
| | Ultra low standby current of 80 nA in shutdown |
| | 170 mΩ NMOS switch |
| | ±2% feedback voltage accuracy |
| | Ease-of-use, small total solution size |
| | Internal soft-start |
| | Internal compensation |
| | Two switching frequencies |
| | 520 kHz (LM2735-Y) |
| | 1.6 MHz (LM2735-X) |
| | Uses small surface mount inductors and chip capacitors |
| | Tiny SOT23-5, LLP-6, and eMSOP-8 packages |
| | LM2735Q is AEC-Q100 Grade 1 qualified and is manufactured on an Automotive Grade Flow |
Description The LM2735 is an easy-to-use, space-efficient 2.1A low-side switch regulator ideal for Boost and SEPIC DC-DC regulation.
It provides all the active functions to provide local DC/DC conversion with fast-transient response and accurate regulation
in the smallest PCB area. Switching frequency is internally set to either 520kHz or 1.6MHz, allowing the use of extremely
small surface mount inductor and chip capacitors while providing efficiencies up to 90%. Current-mode control and internal
compensation provide ease-of-use, minimal component count, and high-performance regulation over a wide range of operating
conditions. External shutdown features an ultra-low standby current of 80 nA ideal for portable applications. Tiny SOT23-5,
LLP-6, and eMSOP-8 packages provide space-savings. Additional features include internal soft-start, circuitry to reduce inrush
current, pulse-by-pulse current limit, and thermal shutdown.
Applications
| | LCD Display Backlighting For Portable Applications |
| | OLED Panel Power Supply |
| | USB Powered Devices |
| | Digital Still and Video Cameras |
| | White LED Current Source |
| | Automotive |
|
|
| |
| Parameters | Values |
| Output Range |
Vin to 24 |
| Switch Current |
2.25 Amp |
| Input Min Voltage |
2.7 Volt |
| Input Max Voltage |
5.5 Volt |
| Feedback Voltage |
1.255 Volt |
| Frequency Max |
1700, 550 kHz |
| Output Min |
3 Volt |
| Output Max |
24 Volt |
| Efficiency (peak) |
90 % |
| Sync Pin |
No |
| Adj Switch Frequency |
No |
| Frequency Min |
475, 1500 kHz |
| On/Off Pin |
Yes |
| Error Flag |
No |
| SoftStart |
Yes |
| Special Features |
12V LLP6 EXP DAP, LLP6 EXP DAP, eMSOP8 EXP DAP, SOT23-5, 12V eMSOP8 EXP DAP, 12V SOT23-5 |
| Topology |
Boost, Sepic, FlyBack |
| Step-Up |
Yes |
| Flyback |
Yes |
| RegType |
Switching Regulator |
| AEC Q-100 Automotive Grade |
1 |
| Automotive |
Yes |
|
Datasheet
Featured Application Notes
More Application Notes
Part Number(s) (NSID) | Description | Availability | Current Reported Stock | Budgetary Pricing | Standard Pack Size |
LM2735SD3.3EVAL
| 520kHz/1.6MHz - Space-Efficient Boost and SEPIC DC-DC Regulator LM2735X SEPIC 6-Pin LLP Demo Board | Full production
|
| $37.50 each | 1 |
Features:
- Input voltage range 2.7V to 5.5V
- Output voltage range 3V to 24V
- 2.1A switch current over full temperature range
- Current-Mode control
- Logic high enable pin
- Ultra low standby current of 80 nA in shutdown
- 170Ωm NMOS switch
- ± 2% feedback voltage accuracy
- Ease-of-use, small total solution size
• Internal soft-start
• Internal compensation
• Two switching frequencies
• 520 kHz (LM2735-Y)
• 1.6 MHz (LM2735-X)
• Uses small surface mount inductors and chip capacitors
• Tiny SOT23-5, LLP-6, and eMSOP-8 packages
Applications:
- LCD Display Backlighting for Portable Applications
- OLED Panel Power Supply
- USB Powered Devices
- Digital Still and Video Cameras
- White LED Current Source
Contents:
- LM2735 Fully Assembled Evaluation Board
- LM2735 Evaluation Board Appnote
- A LM2735 Datasheet
|
Part Number(s) (NSID) | Description | Availability | Current Reported Stock | Budgetary Pricing | Standard Pack Size |
LM2735XMFEVAL
| 520kHz/1.6MHz - Space-Efficient Boost and SEPIC DC-DC Regulator LM2735X Boost 5-Pin SOT23 Demo Board | Full production
|
| $37.50 each | 1 |
Features:
- Input voltage range 2.7V to 5.5V
- Output voltage range 3V to 24V
- 2.1A switch current over full temperature range
- Current-Mode control
- Logic high enable pin
- Ultra low standby current of 80 nA in shutdown
- 170Ωm NMOS switch
- ± 2% feedback voltage accuracy
- Ease-of-use, small total solution size
• Internal soft-start
• Internal compensation
• Two switching frequencies
• 520 kHz (LM2735-Y)
• 1.6 MHz (LM2735-X)
• Uses small surface mount inductors and chip capacitors
• Tiny SOT23-5, LLP-6, and eMSOP-8 packages
Applications:
- LCD Display Backlighting for Portable Applications
- OLED Panel Power Supply
- USB Powered Devices
- Digital Still and Video Cameras
- White LED Current Source
Contents:
- LM2735 Fully Assembled Evaluation Board
- LM2735 Evaluation Board Appnote
- A LM2735 Datasheet
|
Part Number(s) (NSID) | Description | Availability | Current Reported Stock | Budgetary Pricing | Standard Pack Size |
LM2735XMYEVAL
| 520kHz/1.6MHz Space-Efficient Boost and SEPIC DC-DC Regulator LM2735Y Boost 8-Pin eMSOP Demo Board | Full production
|
| $37.50 each | 1 |
Features:
- Input voltage range 2.7V to 5.5V
- Output voltage range 3V to 24V
- 2.1A switch current over full temperature range
- Current-Mode control
- Logic high enable pin
- Ultra low standby current of 80 nA in shutdown
- 170Ωm NMOS switch
- ± 2% feedback voltage accuracy
- Ease-of-use, small total solution size
• Internal soft-start
• Internal compensation
• Two switching frequencies
• 520 kHz (LM2735-Y)
• 1.6 MHz (LM2735-X)
• Uses small surface mount inductors and chip capacitors
• Tiny SOT23-5, LLP-6, and eMSOP-8 packages
Contents:
- LM2735 Fully Assembled Evaluation Board
- LM2735 Evaluation Board Appnote
- LM2735 Datasheet
|
Part Number(s) (NSID) | Description | Availability | Current Reported Stock | Budgetary Pricing | Standard Pack Size |
LM2735XSDEVAL
| 520kHz/1.6MHz Space-Efficient Boost and SEPIC DC-DC Regulator LM2735X Boost 6-Pin LLP Demo Board | Full production
|
| $37.50 each | 1 |
Features:
- Input voltage range 2.7V to 5.5V
- Output voltage range 3V to 24V
- 2.1A switch current over full temperature range
- Current-Mode control
- Logic high enable pin
- Ultra low standby current of 80 nA in shutdown
- 170Ωm NMOS switch
- ± 2% feedback voltage accuracy
- Ease-of-use, small total solution size
• Internal soft-start
• Internal compensation
• Two switching frequencies
• 520 kHz (LM2735-Y)
• 1.6 MHz (LM2735-X)
• Uses small surface mount inductors and chip capacitors
• Tiny SOT23-5, LLP-6, and eMSOP-8 packages
Applications:
- LCD Display Backlighting for Portable Applications
- OLED Panel Power Supply
- USB Powered Devices
- Digital Still and Video Cameras
- White LED Current Source
Contents:
- LM2735 Fully Assembled Evaluation Board
- LM2735 Evaluation Board Appnote
- LM2735 Datasheet
|
Part Number(s) (NSID) | Description | Availability | Current Reported Stock | Budgetary Pricing | Standard Pack Size |
LM2735YMFEVAL
| 520kHz/1.6MHz Space-Efficient Boost and SEPIC DC-DC Regulator LM2735Y Boost 5-Pin SOT23 Demo Board | Full production
|
| $37.50 each | 1 |
Features:
- Input voltage range 2.7V to 5.5V
- Output voltage range 3V to 24V
- 2.1A switch current over full temperature range
- Current-Mode control
- Logic high enable pin
- Ultra low standby current of 80 nA in shutdown
- 170Ωm NMOS switch
- ± 2% feedback voltage accuracy
- Ease-of-use, small total solution size
• Internal soft-start
• Internal compensation
• Two switching frequencies
• 520 kHz (LM2735-Y)
• 1.6 MHz (LM2735-X)
• Uses small surface mount inductors and chip capacitors
• Tiny SOT23-5, LLP-6, and eMSOP-8 packages
Applications:
- LCD Display Backlighting for Portable Applications
- OLED Panel Power Supply
- USB Powered Devices
- Digital Still and Video Cameras
- White LED Current Source
Contents:
- LM2735 Fully Assembled Evaluation Board
- LM2735 Evaluation Board Appnote
- LM2735 Datasheet
|
Part Number(s) (NSID) | Description | Availability | Current Reported Stock | Budgetary Pricing | Standard Pack Size |
LM2735YMYEVAL
| 520kHz/1.6MHz Space-Efficient Boost and SEPIC DC-DC Regulator LM2735X Boost 8-Pin eMSOP Demo Board | Full production
|
| $37.50 each | 1 |
Features:
- Input voltage range 2.7V to 5.5V
- Output voltage range 3V to 24V
- 2.1A switch current over full temperature range
- Current-Mode control
- Logic high enable pin
- Ultra low standby current of 80 nA in shutdown
- 170Ωm NMOS switch
- ± 2% feedback voltage accuracy
- Ease-of-use, small total solution size
• Internal soft-start
• Internal compensation
• Two switching frequencies
• 520 kHz (LM2735-Y)
• 1.6 MHz (LM2735-X)
• Uses small surface mount inductors and chip capacitors
• Tiny SOT23-5, LLP-6, and eMSOP-8 packages
Applications:
- LCD Display Backlighting for Portable Applications
- OLED Panel Power Supply
- USB Powered Devices
- Digital Still and Video Cameras
- White LED Current Source
Contents:
- LM2735 Fully Assembled Evaluation Board
- LM2735 Evaluation Board Appnote
- LM2735 Datasheet
|
Part Number(s) (NSID) | Description | Availability | Current Reported Stock | Budgetary Pricing | Standard Pack Size |
LM2735YSDEVAL
| 520kHz/1.6MHz Space-Efficient Boost and SEPIC DC-DC Regulator LM2735Y Boost 6-Pin LLP Demo Board | Full production
|
| $37.50 each | 1 |
Features:
- Input voltage range 2.7V to 5.5V
- Output voltage range 3V to 24V
- 2.1A switch current over full temperature range
- Current-Mode control
- Logic high enable pin
- Ultra low standby current of 80 nA in shutdown
- 170Ωm NMOS switch
- ± 2% feedback voltage accuracy
- Ease-of-use, small total solution size
• Internal soft-start
• Internal compensation
• Two switching frequencies
• 520 kHz (LM2735-Y)
• 1.6 MHz (LM2735-X)
• Uses small surface mount inductors and chip capacitors
• Tiny SOT23-5, LLP-6, and eMSOP-8 packages
Applications:
- LCD Display Backlighting for Portable Applications
- OLED Panel Power Supply
- USB Powered Devices
- Digital Still and Video Cameras
- White LED Current Source
Contents:
- LM2735 Fully Assembled Evaluation Board
- LM2735 Evaluation Board Appnote
- LM2735 Datasheet
|
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
|
LM2735XMF | PVIP050 | 0 | 9960 | 0 | 0 | 855000 | 5 | 242608584
|
|
LM2735XMFX | PVIP050 | 0 | 9960 | 0 | 0 | 855000 | 5 | 242608584
|
|
LM2735XMY | PVIP050 | 0 | 9960 | 0 | 0 | 855000 | 5 | 242608584
|
|
LM2735XMYX | PVIP050 | 0 | 9960 | 0 | 0 | 855000 | 5 | 242608584
|
|
LM2735XQMF | PVIP050 | 0 | 9960 | 0 | 0 | 855000 | 5 | 242608584
|
|
LM2735XQMFX | PVIP050 | 0 | 9960 | 0 | 0 | 855000 | 5 | 242608584
|
|
LM2735XSD | PVIP050 | 0 | 9960 | 0 | 0 | 855000 | 5 | 242608584
|
|
LM2735XSDX | PVIP050 | 0 | 9960 | 0 | 0 | 855000 | 5 | 242608584
|
|
LM2735YMF | PVIP050 | 0 | 9960 | 0 | 0 | 855000 | 5 | 242608584
|
|
LM2735YMFX | PVIP050 | 0 | 9960 | 0 | 0 | 855000 | 5 | 242608584
|
|
LM2735YMY | PVIP050 | 0 | 9960 | 0 | 0 | 855000 | 5 | 242608584
|
|
LM2735YMYX | PVIP050 | 0 | 9960 | 0 | 0 | 855000 | 5 | 242608584
|
|
LM2735YQMF | PVIP050 | 0 | 9960 | 0 | 0 | 855000 | 5 | 242608584
|
|
LM2735YQMFX | PVIP050 | 0 | 9960 | 0 | 0 | 855000 | 5 | 242608584
|
|
LM2735YSD | PVIP050 | 0 | 9960 | 0 | 0 | 855000 | 5 | 242608584
|
|
LM2735YSDX | PVIP050 | 0 | 9960 | 0 | 0 | 855000 | 5 | 242608584
|
Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR.
The Long Term Failure Rates were calculated
at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress
temperature of 150°C to an application temperature of 55°C.
For more information on Reliability Metrics, please click here.
| Power for Portable Applications (Boost, Buck-Boost, & Integrated) |
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| Power for Portable Applications (Boost, Buck-Boost, & Integrated) Date: 01/15/08 Length: 0:4:25 |
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