TI LM5155DSSR
Boost, Flyback, SEPIC Regulator Positive Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 12-WSON (3x2)
Brands: Texas Instruments
Mfr.Part #: LM5155DSSR
Datasheet: LM5155DSSR Datasheet (PDF)
Package/Case:
Product Type: Switching Controllers
RoHS Status:
Stock Condition: 7755 pcs, New Original
Warranty: 1 Year Ovaga Warranty - Find Out More
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Add To BomLM5155DSSR General Description
The LM5155x (LM5155 and LM51551) is a wide input range, non-synchronous boost controller that uses peak current mode control. The device can be used in boost, SEPIC, and flyback topologies.
The LM5155x can start up from a 1-cell battery with a minimum of 2.97 V if the BIAS pin is connected to the VCC pin. It can operate with the input supply voltage as low as 1.5 V if the BIAS pin is greater than 3.5 V.
Features
- Functional Safety-Capable
- Documentation available to aid functional safety system design
- Wide input operating range for battery applications
- 3.5-V to 45-V operating range
- 2.97-V to 16-V when BIAS = VCC
- Minimum boost supply voltage 1.5 V when BIAS ≥ 3.5 V
- Input transient protection up to 50 V
- Minimized battery drain
- Low shutdown current (I Q ≤ 2.6 µA)
- Low operating current (I Q ≤ 480 µA)
- Small solution size and low cost
- Maximum switching frequency of 2.2 MHz
- 12-Pin WSON package (3 mm × 2 mm)
- Integrated error amplifier allows primary-side regulation without optocoupler (flyback)
- Minimized undershoot during cranking (start-stop application)
- Higher efficiency with low-power dissipation
- 100-mV ±7% Low current limit threshold
- Strong 1.5-A peak standard MOSFET driver
- Supports external VCC supply
- Avoid AM band interference and crosstalk
- Optional clock synchronization
- Dynamically programmable switching frequency from 100 kHz to 2.2 MHz
- Integrated protection features
- Constant peak current limiting over input voltage
- Optional hiccup mode short-circuit protection (see the Device Comparison Table)
- Programmable line UVLO
- OVP protection
- Thermal shutdown
- Accurate ±1% accuracy feedback reference
- Programmable extra slope compensation
- Adjustable soft start
- PGOOD indicator
- Create a custom design using the LM5155x with the WEBENCH power designer
Specifications
Parameter | Value | Parameter | Value |
---|---|---|---|
Manufacturer | Texas Instruments | Product Category | Switching Controllers |
RoHS | Details | Topology | Boost, Flyback, SEPIC |
Number of Outputs | 1 Output | Switching Frequency | 100 kHz to 2.2 MHz |
Duty Cycle - Max | 93 % | Input Voltage | 1.5 V to 45 V |
Output Voltage | 1.5 V to 300 V | Output Current | 1.5 A |
Minimum Operating Temperature | - 40 C | Maximum Operating Temperature | + 125 C |
Mounting Style | SMD/SMT | Package / Case | WSON-12 |
Brand | Texas Instruments | Isolation | Isolated, Non-Isolated |
Operating Supply Current | 450 uA | Operating Supply Voltage | 1.5 V to 45 V |
Product | Switching Controllers | Product Type | Switching Controllers |
Series | LM5155 | Shutdown | Shutdown |
Factory Pack Quantity | 3000 | Subcategory | PMIC - Power Management ICs |
Unit Weight | 0.017284 oz |
Shipping
Shipping Type | Ship Fee | Lead Time | |
---|---|---|---|
DHL | $20.00-$40.00 (0.50 KG) | 2-5 days | |
Fedex | $20.00-$40.00 (0.50 KG) | 2-5 days | |
UPS | $20.00-$40.00 (0.50 KG) | 2-5 days | |
TNT | $20.00-$40.00 (0.50 KG) | 2-5 days | |
EMS | $20.00-$40.00 (0.50 KG) | 2-5 days | |
REGISTERED AIR MAIL | $20.00-$40.00 (0.50 KG) | 2-5 days |
Processing Time:Shipping fee depend on different zone and country.
Payment
Terms of payment | Hand Fee | |
---|---|---|
Wire Transfer | charge US$30.00 banking fee. | |
Paypal | charge 4.0% service fee. | |
Credit Card | charge 3.5% service fee. | |
Western Union | charge US.00 banking fee. | |
Money Gram | charge US$0.00 banking fee. |
Guarantees
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
Packing
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