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MIC29152WU-TR

1.5A LDO adj 1.25-25V, 350mV dropout, TO-247-5, 2.25-26Vin

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Pieza del fabricante：

MIC29152WU-TR

Paquete：

TO-247-5 / D2PAK-5 (10.4 x 8.2 x 4.1mm, surface mount, 5-pin)

Marca：
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Compromiso de calidad
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Descripción

Productos

The MIC29152WU-TR from Microchip Technology is a 1.5A low-dropout (LDO) adjustable voltage regulator in a TO-247-5 (D2PAK-5) surface-mount package. With only 350mV typical dropout at 1.5A and 2.25-26V input range, it provides 1.25V to 25V adjustable output with excellent line and load regulation.

Especificaciones

Output Type Adjustable
Output Voltage Range 1.25V to 25V
Corriente de salida 1.5 A maximum
Input Voltage Range 2.25V to 26V
Dropout Voltage 350 mV typical @ 1.5A
Line Regulation 0.02% /V typical
Load Regulation 0.05% typical
PSRR >70 dB @ 120Hz
Corriente de reposo 15 mA typical @ 1.5A
Ground Current 240 µA (no load)
Temperatura de funcionamiento -40 to +125°C
Paquete TO-247-5 / D2PAK-5 (WU suffix)

Características

  • Ultra-low dropout: 350mV @ 1.5A
  • 1.25V to 25V adjustable output
  • 2.25V to 26V wide input range
  • 1.5A guaranteed output current
  • Excellent line and load regulation
  • >70dB PSRR
  • Zero current-limit (no foldback)
  • Reverse-battery protection
  • Current limiting and thermal shutdown
  • Uses low-ESR ceramic output capacitor
  • Available in TO-247-5 surface-mount

Aplicaciones

  • Post-regulation after switching supplies
  • Battery-powered equipment regulators
  • High-efficiency linear regulators
  • Automotive and industrial power
  • Distributed power systems

The MIC29152WU-TR from Microchip is a 1.5A adjustable LDO regulator in TO-247-5 (D2PAK-5). Features ultra-low 350mV dropout at 1.5A, 2.25-26V input range, and 1.25-25V adjustable output. Excellent line regulation (0.02%/V) and >70dB PSRR. Part of the MIC29150/29300/29500 family (1.5A/3A/7.5A variants). WU suffix denotes TO-247-5 SMD package, TR suffix denotes tape-and-reel. Ideal for post-regulation of switching supplies and high-current LDO applications.

The MIC29152 uses a PNP pass transistor in a common-emitter configuration, which allows the dropout voltage to be as low as VCE(sat) of the PNP transistor (350mV at 1.5A). This is significantly lower than NPN-based LDO regulators which require at least VBE + VCE(sat) (>1.5V dropout). The output voltage is set by an external resistor divider from VOUT to the ADJ pin, where the internal reference voltage is 1.235V. The error amplifier compares the ADJ pin voltage against the reference and drives the PNP pass transistor accordingly. The MIC29152 is part of the ‘Super LDO’ family that does not use foldback current limiting, ensuring full output current delivery even under fault conditions. The device is stable with low-ESR ceramic output capacitors (10µF minimum).

Pin Nombre Tipo Función
1 ES Entrada Enable (active high, internal pull-up)
2 EN Potencia Input supply (2.25-26V)
3 ADJ Entrada Adjustment feedback (VREF = 1.235V)
4 GND/Tab Suelo Ground and thermal pad
5 OUT Salida Regulated output (1.25-25V)
  • 3.3V to 2.5V LDO post-regulation for FPGA I/O rail at 1.5A
  • 12V to 5V high-PSRR regulator for audio amplifier
  • Battery-powered 5V rail with 350mV dropout from 5.4V source
  • Automotive 12V to 3.3V regulator with reverse-battery protection
  • Distributed 5V power rail regulation at 1.5A per point-of-load
Fabricante Número de pieza Paquete Notas
Microchip MIC29300WU-TR TO-247-5 3A version, same footprint
Microchip MIC29152BU TO-252-5 DPAK-5 smaller package
TI LM1084IT-ADJ/NOPB TO-263-3 5A LDO, adjustable, similar class
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