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LM66200
  • LM66200
  • LM66200
  • LM66200
  • LM66200

LM66200

ACTIVE

1.6-V to 5.5-V, 40-mΩ, 2.5-A, low-IQ, dual ideal diode

Texas Instruments LM66200 Product Info

1 April 2026 4

Parameters

Vin (max) (V)

5.5

Vin (min) (V)

1.6

FET

Integrated single FET

Device type

Ideal diode controller

Number of channels

2

Rating

Catalog

Features

Gate ON/OFF control, Inrush current control, Power good signal, Reverse current blocking, Thermal shutdown

Imax (A)

2.5

Iq (typ) (mA)

0.0013

Iq (max) (mA)

0.0044

Operating temperature range (°C)

-40 to 125

Shutdown current (ISD) (mA) (A)

0.0003

Product type

Ideal diode controller

Package

SOT-5X3 (DRL)-8-3.36 mm² 2.1 x 1.6

Features

  • Input voltage range: 1.6 V to 5.5 V
  • Maximum continuous current: 2.5 A
  • On-resistance: 40 mΩ (typical)
  • Standby current: 50 nA (typical)
  • Quiescent current: 1.32 µA (typical)
  • Automatic diode switchover
  • Controlled output slew rate:
    • 1.3 ms (typical) at 3.3 V
  • Reverse current blocking when VOUT > VINx
  • Thermal shutdown
  • Input voltage range: 1.6 V to 5.5 V
  • Maximum continuous current: 2.5 A
  • On-resistance: 40 mΩ (typical)
  • Standby current: 50 nA (typical)
  • Quiescent current: 1.32 µA (typical)
  • Automatic diode switchover
  • Controlled output slew rate:
    • 1.3 ms (typical) at 3.3 V
  • Reverse current blocking when VOUT > VINx
  • Thermal shutdown

Description

The LM66200 is a dual ideal diode device with a voltage rating of 1.6 V to 5.5 V and a maximum current rating of 2.5 A per channel. The device uses N-channel MOSFETs to switch between supplies while providing a controlled slew rate when voltage is first applied.

Due to its low quiescent of 1.32 µA (typical) and low standby current of 50 nA (typical), the LM66200 is ideal for systems where a battery is connected to one of the inputs. These low currents extend the life and operation of the battery when in use.

The LM66200 uses automatic diode mode to prioritize the highest voltage supply and pass it through to the output. The active low enable pin (ON) disables both channels, allowing the user to put the device into shutdown mode when neither supply is needed.

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