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4.5-42V Wide Vin, Current Mode Non-Synchronous Buck Controller

Inventory: 9,122  

Quality information

RoHS Yes
Lead finish / Ball material SN
MSL rating / Peak reflow Level-1-260C-UNLIM
Quality, reliability
& packaging information

Information included:

  • RoHS
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Packaging information

Package | Pins Package qty | Carrier: Operating temperature range (°C)
HTSSOP (PWP) | 16 92 | TUBE
-40 to 125
Package | Pins HTSSOP (PWP) | 16
Package qty | Carrier: 92 | TUBE
Operating temperature range (°C) -40 to 125
View TI packaging information

Features for the LM25088

  • LM25088Q is an Automotive Grade Product that
    is AEC-Q100 Grade 1 Qualified (–40°C to
    +125°C Operating Junction Temperature)
  • Emulated Current Mode Control
  • Drives External High-Side N-Channel MOSFET
  • Ultra-Wide Input Voltage Range from 4.5V to 42V
  • Low IQ Shutdown and Standby Modes
  • High Duty Cycle Ratio Feature for Reduced Dropout
  • Spread Spectrum EMI Reduction (LM25088-1)
  • Hiccup Timer for Overload Protection (LM25088-2)
  • Adjustable Output Voltage from 1.205 V with 1.5%
    Feedback Reference Accuracy
  • Wide Bandwidth Error Amplifier
  • Single Resistor Oscillator Frequency Setting
  • Oscillator Synchronization Capability
  • Programmable Soft-Start
  • High Voltage, Low Dropout Bias Regulator
  • Thermal Shutdown Protection
  • Package: HTSSOP 16-Pin

Description for the LM25088

The LM25088 high voltage non-synchronous buck controller features all the necessary functions to implement an efficient high voltage buck converter using a minimum number of external components. The LM25088 can be configured to operate over an ultra-wide input voltage range of 4.5 V to 42 V. This easy to use controller includes a level shifted gate driver capable of controlling an external N-channel buck switch. The control method is based upon peak current mode control utilizing an emulated current ramp. The use of an emulated control ramp reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage/low output voltage applications. The LM25088 switching frequency is programmable from 50 kHz to 1 MHz.

The LM25088 is available in two versions: The LM25088-1 provides a +/–5% frequency dithering function to reduce the conducted and radiated EMI, while the LM25088-2 provides a versatile restart timer for overload protection. Additional features include a low dropout bias regulator, tri-level enable input to control shutdown and standby modes, soft-start and oscillator synchronization capability. The device is available in a thermally enhanced HTSSOP-16 pin package.


Qty Price (USD)
1-99 2.666
100-249 2.336
250-999 1.638
1,000+ 1.32

Additional package qty | carrier options

Package qty | Carrier 2,500 | LARGE T&R
Inventory 30,675
Qty | Price (USD) 1ku | 1.1 1-99 2.222 100-249 1.947 250-999 1.365 1,000+ 1.1
Custom reel may be available