UVLO Adjustable MCU Microcontroller Unit LM5176RHFT Lead Free
Brand Name:Texas Instruments
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Model Number:LM5176RHFT
Minimum Order Quantity:1PCS
Delivery Time:2-7 work days
Payment Terms:T/T
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Shenzhen China
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7F, Building F, Longjing Science park, 335 Bulong Road, Ma Antang Community, Bantian Street, Longgang District, Shenzhen, China
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MCU Microcontroller Unit Texas Instruments/TI LM5176RHFT
| Topology | Buck-Boost |
| Vin (Min) (V) | 4.2 |
| Vin (Max) (V) | 55 |
| Vout (Max) (V) | 55 |
| Vout (Min) (V) | 0.8 |
| Duty cycle (Max) (%) | 100 |
| Switching frequency (Min) (kHz) | 100 |
| Switching frequency (Max) (kHz) | 600 |
| Iq (Typ) (mA) | 2 |
| Features | Adjustable Current Limit, Enable, Frequency Synchronization, Power Good, Pre-Bias Start-Up, Synchronous Rectification, UVLO Adjustable |
| Operating temperature range (C) | -40 to 125 |
| Rating | Catalog |
Features for the LM5176
- Functional Safety-Capable
- Single inductor buck-boost controller for step-up/step-down DC/DC conversion
- Wide VIN: 4.2 V (2.5 V with bias) to 55 V (60 V maximum)
- Flexible VOUT: 0.8 V to 55 V
- VOUT short protection
- High efficiency buck-boost transition
- Adjustable switching frequency
- Optional frequency sync and dithering
- Integrated 2-A MOSFET gate drivers
- Cycle-by-cycle current limit and optional hiccup
- Optional input or output average current limiting
- Programmable input UVLO and soft start
- Power Good and output overvoltage protection
- Available in HTSSOP-28 and QFN-28 packages
Description for the LM5176
The LM5176 is a synchronous four-switch buck-boost DC/DC controller capable of regulating the output voltage at, above, or below the input voltage. The LM5176 operates over a wide input voltage range of 4.2 V to 55 V (60-V absolute maximum) to support a variety of applications.
The LM5176 uses 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 LM5176 features optional average input or output current limiting, optional spread spectrum to reduce peak EMI, and optional hiccup mode protection in sustained overload conditions.
UVLO Adjustable MCU Microcontroller Unit LM5176RHFT Lead Free
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