LMR12015 20Vin, 1.5A Step-Down Voltage Regulator in LLP-10 | TI.com

LMR12015 (ACTIVE) 20Vin, 1.5A Step-Down Voltage Regulator in LLP-10



The LMR120xx regulator is a monolithic, high frequency, PWM step-down DC/DC converter in a 10-pin WSON package. It contains all the active functions to provide local DC/DC conversion with fast transient response and accurate regulation in the smallest possible PCB area.

With a minimum of external components the LMR12015/20 is easy to use. The ability to drive 1.5-A or 2-A loads, with an internal 150-mΩ NMOS switch results in the best power density available. The control circuitry allows for on-times as low as 65 ns, thus supporting exceptionally high frequency conversion. Switching frequency is internally set to 2 MHz and synchronizable from 1 to 2.35 MHz, which allows the use of extremely small surface mount inductors and chip capacitors. Even though the operating frequency is very high, efficiencies up to 90% are easy to achieve. External shutdown is included featuring an ultra-low shutdown current of 70 nA. The LMR12015/20 utilizes peak current mode control and internal compensation to provide high-performance regulation over a wide range of operating conditions. Additional features include internal soft-start circuitry to reduce inrush current, pulse-by-pulse current limit, thermal shutdown, and output overvoltage protection.


  • Input Voltage Range of 3 V to 20 V
  • Output Voltage Range of 1 V to 18 V
  • LMR12015 and LMR12020 Deliver 1.5-A and 2-A Maximum Output Current, Respectively
  • 2-MHz Switching Frequency
  • Frequency Synchronization from 1 MHz to 2.35 MHz
  • 70-nA Shutdown Current
  • 1% Voltage-Reference Accuracy
  • Peak-Current-Mode PWM Operation
  • Thermal Shutdown
  • Internally Compensated
  • Internal Soft Start
  • Tight Accuracy for Powering Digital ICs
  • Extremely Easy to Use
  • Tiny Overall Solution Reduces System Cost
  • Space-Saving WSON (3 × 3 × 0.8 mm) Packaging
  • Create a custom design using the LMR12015 WEBENCH® Power Designer or LMR12020 WEBENCH® Power Designer

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WEBENCH® Power Designer is now even easier to use. Try it now.

WEBENCH® Designer LMR12015

  Min   Max Range
Vin  V 3.0 to 20.0V
Vout  V 1 to 18V
Iout  A ≤ 1.5A
Ambient Temp  °C -40 to 125°C


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Part number Order Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Iout (Max) (A) Regulated outputs (#) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Control mode Duty cycle (Max) (%) Operating temperature range (C) Rating Package Group Type Package size: mm2:W x L (PKG)
LMR12015 Order now 3     20     1     18     1.5     1     1000     2300     2.4     Enable
Frequency Synchronization    
Current Mode     90     -40 to 125     Catalog     WSON | 10     Converter     10WSON: 9 mm2: 3 x 3 (WSON | 10)    
LMR12010 Order now 3     20     0.8     17     1     1     1600     3000     1.5     Enable     Current Mode     92     -40 to 125     Catalog     SOT-23-THIN | 6     Converter     6SOT-23-THIN: 5 mm2: 1.6 x 2.9 (SOT-23-THIN | 6)    
LMR12020 Order now 3     20     1     18     2     1     1000     2300     2.4     Enable
Frequency Synchronization    
Current Mode     90     -40 to 125     Catalog     WSON | 10     Converter     10WSON: 9 mm2: 3 x 3 (WSON | 10)