LM5175PWPT
Active42V WIDE VIN 4-SWITCH SYNCHRONOUS BUCK-BOOST CONTROLLER
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LM5175PWPT
Active42V WIDE VIN 4-SWITCH SYNCHRONOUS BUCK-BOOST CONTROLLER
Technical Specifications
Parameters and characteristics for this part
| Specification | LM5175PWPT |
|---|---|
| Clock Sync | True |
| Control Features | Soft Start, Power Good, Enable, Frequency Control |
| Frequency - Switching [Max] | 600 kHz |
| Frequency - Switching [Min] | 100 kHz |
| Function | Step-Up/Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Phases | 1 |
| Output Type | Transistor Driver |
| Package / Case | 28-PowerTSSOP |
| Package / Case [custom] | 4.4 mm |
| Package / Case [custom] | 0.173 " |
| Supplier Device Package | 28-HTSSOP |
| Synchronous Rectifier | True |
| Topology | Buck-Boost |
| Voltage - Supply (Vcc/Vdd) [Max] | 42 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 3.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 8.66 | |
| 10 | $ 7.82 | |||
| 25 | $ 7.46 | |||
| 100 | $ 6.47 | |||
| Digi-Reel® | 1 | $ 8.66 | ||
| 10 | $ 7.82 | |||
| 25 | $ 7.46 | |||
| 100 | $ 6.47 | |||
| Tape & Reel (TR) | 250 | $ 4.50 | ||
| Newark | Each (Supplied on Cut Tape) | 1 | $ 10.74 | |
| 10 | $ 10.28 | |||
| 25 | $ 9.77 | |||
| 50 | $ 9.34 | |||
| 100 | $ 8.93 | |||
| Texas Instruments | SMALL T&R | 1 | $ 6.63 | |
| 100 | $ 5.40 | |||
| 250 | $ 4.25 | |||
| 1000 | $ 3.60 | |||
Description
General part information
LM5175-Q1 Series
The LM5175-Q1 is a synchronous four-switch buck-boost DC/DC controller capable of regulating the output voltage at, above, or below the input voltage. The LM5175-Q1 operates over a wide input voltage range of 3.5 V to 42 V (60 V maximum) to support a variety of applications.
The LM5175-Q1 employs current-mode control both in buck and boost modes of operation for superior load and line regulation. The switching frequency is programmed by an external resistor and can be synchronized to an external clock signal.
The device also features a programmable soft-start function and offers protection features including cycle-by-cycle current limiting, input undervoltage lockout (UVLO), output overvoltage protection (OVP), and thermal shutdown. In addition, the LM5175-Q1 features selectable Continuous Conduction Mode (CCM) or Discontinuous Conduction Mode (DCM) operation, optional average input or output current limiting, optional spread spectrum to reduce peak EMI, and optional hiccup mode protection in sustained overload conditions.
Documents
Technical documentation and resources
