Product
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LSF0002
  • LSF0002
  • LSF0002

LSF0002

ACTIVE

Ultra-small auto-bidirectional translator for open-drain and push-pull applications

Texas Instruments LSF0002 Product Info

1 April 2026 4

Parameters

Bits (#)

2

Data rate (max) (Mbps)

200

Topology

Open drain, Push-Pull

Direction control (typ)

Auto-direction

Vin (min) (V)

0.95

Vin (max) (V)

3.6

Vout (min) (V)

1.8

Vout (max) (V)

5.5

Applications

GPIO, I2C, MDIO, PMBus, SMBus

Features

Single supply

Prop delay (ns)

1.3

Technology family

LSF

Supply current (max) (mA)

0.0125

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Package

X2SON (DTQ)-6-0.8 mm² 1 x 0.8

Features

  • Provide bidirectional voltage translation with no direction pin needed (VEXTA needs to be 0.8V less than VEXTB for best signal integrity)
  • Supports switch configuration implementation when VEXTA = VEXTB
  • Supports up to 100MHz up translation and greater than 100MHz down translation at≤ 30pF capacitive load and up To 40MHz up or down translation at 50pF capacitive load
  • Allows bidirectional voltage-level translation between
    • 0.95V ↔ 1.8/2.5/3.3/5V
    • 1.2V ↔ 1.8/2.5/3.3/5V
    • 1.8V ↔ 2.5/3.3/5V
    • 2.5V ↔ 3.3/5V
    • 3.3V ↔ 5V
  • Low standby current
  • 5V tolerance I/O port to support TTL
  • Low RON provides less signal distortion
  • High-impedance I/O pins for EN = Low
  • Flow-through pinout for easy PCB trace routing
  • Latch-up performance >100mA per JESD 17
  • –40°C to 125°C operating temperature range
  • Provide bidirectional voltage translation with no direction pin needed (VEXTA needs to be 0.8V less than VEXTB for best signal integrity)
  • Supports switch configuration implementation when VEXTA = VEXTB
  • Supports up to 100MHz up translation and greater than 100MHz down translation at≤ 30pF capacitive load and up To 40MHz up or down translation at 50pF capacitive load
  • Allows bidirectional voltage-level translation between
    • 0.95V ↔ 1.8/2.5/3.3/5V
    • 1.2V ↔ 1.8/2.5/3.3/5V
    • 1.8V ↔ 2.5/3.3/5V
    • 2.5V ↔ 3.3/5V
    • 3.3V ↔ 5V
  • Low standby current
  • 5V tolerance I/O port to support TTL
  • Low RON provides less signal distortion
  • High-impedance I/O pins for EN = Low
  • Flow-through pinout for easy PCB trace routing
  • Latch-up performance >100mA per JESD 17
  • –40°C to 125°C operating temperature range

Description

The LSF0002 supports bidirectional voltage translation without the need for DIR pin, which minimizes system effort (for PMBus, I2C, SMBus, and so forth). The LSF family of devices supports up to 100MHz up translation and greater than 100MHz down translation at ≤ 30pF capacitive load and up to 40MHz up or down translation at 50pF capacitive load, which allows the LSF family to support more consumer or telecom interfaces (MDIO or SDIO).

LSF family supports 5V tolerance on I/O port, which makes it compatible with TTL levels in industrial and telecom applications. The LSF family can set up different voltage translation levels, which makes it very flexible.

Unlike the LSF0x0x family, the LSF0002 does not require VREF_A and VREF_B power supplies and the 200kΩ bias resistor. The LSF0002 utilizes the VBIAS pin that enables translation by being biased to the same voltage as the lower power supply at the I/Os that is being translated to and from.

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