LM5118Q1MH/NOPB
DC/DC Cntrlr Single-OUT Step Down/Step Up 500kHz Automotive AEC-Q100 20-Pin HTSSOP EP Tube
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Part Number : LM5118Q1MH/NOPB
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Package/Case : HTSSOP-20
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Brands : TI
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Components Categories : DC DC Switching Controllers
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Datesheet : LM5118Q1MH/NOPB DataSheet (PDF)
Overview of LM5118Q1MH/NOPB
The LM5118-Q1 wide voltage range Buck-Boost switching regulator controller features all of the functions necessary to implement a high-performance, cost-efficient Buck-Boost regulator using a minimum of external components. The Buck-Boost topology maintains output voltage regulation when the input voltage is either less than or greater than the output voltage, making it especially suitable for automotive applications. The LM5118-Q1 operates as a buck regulator while the input voltage is sufficiently greater than the regulated output voltage and gradually transitions to the buck-boost mode as the input voltage approaches the output. This dual-mode approach maintains regulation over a wide range of input voltages with optimal conversion efficiency in the buck mode and a glitch-free output during mode transitions. This easy-to-use controller includes drivers for the high-side buck MOSFET and the low-side boost MOSFET. The regulators control method is based upon current mode control using an emulated current ramp. Emulated current mode control reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of the very small duty cycles necessary in high input voltage applications. Additional protection features include current limit, thermal shutdown and an enable input. The device is available in a power-enhanced, 20-pin HTSSOP package featuring an exposed die attach pad to aid thermal dissipation.
Key Features
- AEC-Q100 Qualified for Automotive Applications
- Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
- Device HBM ESD Classification Level 2
- Device CDM ESD Classification Level C6
- Ultra-Wide Input Voltage Range From 3 V to 75 V
- Emulated Peak Current Mode Control
- Smooth Transition Between Step-Down and Step-Up Modes
- Switching Frequency Programmable to 500 KHz
- Oscillator Synchronization Capability
- Internal High Voltage Bias Regulator
- Integrated High and Low-Side Gate Drivers
- Programmable Soft-Start Time
- Ultra-Low Shutdown Current
- Enable Input Wide Bandwidth Error Amplifier
- 1.5% Feedback Reference Accuracy
- Thermal Shutdown
- Package: 20-Pin HTSSOP (Exposed Pad)
- Create a Custom Design Using the LM5118-Q1 With the WEBENCH® Power Designer
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Series | LM5118-Q1 | Product Status | Active |
Output Type | Transistor Driver | Function | Step-Down, Step-Up/Step-Down |
Output Configuration | Positive | Topology | Buck-Boost |
Voltage - Supply (Vcc/Vdd) | 3V ~ 75V | Frequency - Switching | 200kHz, 515kHz |
Duty Cycle (Max) | 80% | Synchronous Rectifier | No |
Clock Sync | Yes | Control Features | Enable, Frequency Control, Ramp, Soft Start |
Operating Temperature | -40°C ~ 125°C (TJ) | Mounting Type | Surface Mount |
Package / Case | HTSSOP-20 | Supplier Device Package | 20-HTSSOP |
Base Product Number | LM5118 | Manufacturer | Texas Instruments |
Product Category | Switching Controllers | RoHS | Details |
Number of Outputs | 1 Output | Switching Frequency | 500 kHz |
Duty Cycle - Max | 80 % | Input Voltage | 3 V to 75 V |
Output Voltage | 1.23 V to 70 V | Output Current | 3.5 A |
Minimum Operating Temperature | - 40 C | Maximum Operating Temperature | + 125 C |
Mounting Style | SMD/SMT | Qualification | AEC-Q100 |
Brand | Texas Instruments | Operating Supply Current | 4.5 mA |
Product Type | Switching Controllers | Factory Pack Quantity | 73 |
Subcategory | PMIC - Power Management ICs | Type | Step Up, Step Down |
Unit Weight | 0.006102 oz |
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