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1A FlexCap Low-Dropout Linear Regulator with 1% Accuracy


Package | PIN: PWP | 16
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $2.43
10-24 $2.18
25-99 $2.03
100-249 $1.77
250-499 $1.63
500-749 $1.37
750-999 $1.12
1000+ $1.03


  • Operating Input Supply Range: +2.7V to + 5.5V
  • Maximum Continuous Output Current: 1A
  • Preset Output Voltage of 2.5V, or Adjustable Output Voltage From 0.8V to 5.0V
  • Pre-Set Output Initial VOUT Tolerance ±0.5%
  • Adjustable VREF Tolerance of ±0.75%
  • PSRR of 50dB at 100kHz
  • Low 200 mV Dropout at 1A
  • Typical 2 µA Supply Current in Shutdown Mode
  • Adjustable Soft-Start for Output Current
  • Fold-Back Output Current Limit
  • Stable With Ceramic, Tantalum, or Aluminum Capacitors
  • Stable With 1uF Input/Output Capacitors
  • Thermal Shutdown
  • 16-pin HTSSOP Package

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Texas Instruments  LP38869MHX/NOPB

The LP38869 low-dropout linear regulator operates with an input voltage supply from +2.7V to +5.5V input, and delivers a specified 1A load current with a low 200 mV dropout. The high 50 dB PSRR at 100 kHz results from a high gain control loop that also yields excellent transient response. Coupled with a high accuracy output voltage, ±0.75 % over temperature, the LP38869 is an ideal power supply for FPGAs, DSPs or MCUs. Output voltage is preset at +2.5V, or may be adjustable between +0.8V to +5V with an external resistor divider.

The LP38869 only needs 1 μF output capacitance for stability. The FlexCap compensation allows the use of any type of output capacitor, regardless of ESR. Other features include: Soft-Start; delayed reset output; low-power shutdown; short-circuit protection; and thermal shutdown protection

Ground Pin Current: Typically less than 1 mA at 1A load

Shutdown Mode: Typically 2 µA quiescent current when the SHDN pin is pulled low.

Simplified Compensation: Stable with any type of output capacitor.