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Linear & low-dropout (LDO) regulators

LP5952

ACTIVE

350-mA, low-VIN (0.9-V), linear voltage regulator with enable

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Data sheet

LP5952

ACTIVE
Data sheet Order now

Product details

Output options Fixed Output Iout (max) (A) 0.35 Vin (max) (V) 4.5 Vin (min) (V) 0.9 Vout (max) (V) 2 Vout (min) (V) 0.7 Fixed output options (V) 1, 1.2, 1.3, 1.5, 1.6, 1.8 Noise (µVrms) 100 Iq (typ) (mA) 0.061 Thermal resistance θJA (°C/W) 181 Rating Catalog Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable Accuracy (%) 3 PSRR at 100 KHz (dB) 38 Dropout voltage (Vdo) (typ) (mV) 88, 128 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 0.35 Vin (max) (V) 4.5 Vin (min) (V) 0.9 Vout (max) (V) 2 Vout (min) (V) 0.7 Fixed output options (V) 1, 1.2, 1.3, 1.5, 1.6, 1.8 Noise (µVrms) 100 Iq (typ) (mA) 0.061 Thermal resistance θJA (°C/W) 181 Rating Catalog Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable Accuracy (%) 3 PSRR at 100 KHz (dB) 38 Dropout voltage (Vdo) (typ) (mV) 88, 128 Operating temperature range (°C) -40 to 125
DSBGA (YZR) 5 2.02 mm² 1.616 x 1.25 USON (NKH) 6 4 mm² 2 x 2
  • Input Voltage Range: 0.7 V to 4.5 V
  • 2.5 V ≤ VBATT ≤ 5.5 V
  • 0.5V ≤ VOUT ≤ 2 V
  • Ensured 350-mA Output Current
  • For ILOAD = 350 mA:
    • VBATT ≥ VOUT(NOM) + 1.5 V or 2.5 V
      (Whichever is Higher)
  • For ILOAD = 150 mA:
    • VBATT ≥ VOUT(NOM) + 1.3 V or 2.5 V
      (Whichever is Higher)
  • Excellent Load Transient Response: ±15 mV Typical
  • Excellent Line Transient Response: ±1 mV Typical
  • 50-µA Typical Quiescent Current from VBATT
  • 10-µA Typical Quiescent Current from VIN
  • 0.1-µA Typical Quiescent Current in Shutdown
  • Noise voltage = 100 µVRMS Typical
  • Operates from a Single Li-Ion Cell or 3-Cell NiMH/NiCd Battery
  • Thermal-Overload and Short-Circuit Protection
  • Input Voltage Range: 0.7 V to 4.5 V
  • 2.5 V ≤ VBATT ≤ 5.5 V
  • 0.5V ≤ VOUT ≤ 2 V
  • Ensured 350-mA Output Current
  • For ILOAD = 350 mA:
    • VBATT ≥ VOUT(NOM) + 1.5 V or 2.5 V
      (Whichever is Higher)
  • For ILOAD = 150 mA:
    • VBATT ≥ VOUT(NOM) + 1.3 V or 2.5 V
      (Whichever is Higher)
  • Excellent Load Transient Response: ±15 mV Typical
  • Excellent Line Transient Response: ±1 mV Typical
  • 50-µA Typical Quiescent Current from VBATT
  • 10-µA Typical Quiescent Current from VIN
  • 0.1-µA Typical Quiescent Current in Shutdown
  • Noise voltage = 100 µVRMS Typical
  • Operates from a Single Li-Ion Cell or 3-Cell NiMH/NiCd Battery
  • Thermal-Overload and Short-Circuit Protection

The LP5952 is a dual-supply-rail linear regulator optimized for powering ultralow-voltage circuits from a single Li-Ion cell or 3-cell NiMH/NiCd battery.

In the typical post-regulation application VBATT is directly connected to the battery (range 2.5 V to
5.5 V), and VIN is supplied by the output voltage of the DC-DC converter (range 0.7 V to 4.5 V).

The device offers superior dropout and transient features combined with very low quiescent currents. In shutdown mode (Enable (EN) pin pulled low) the device turns off and reduces battery consumption to 0.1 µA (typical). The LP5952 also features internal protection against overtemperature, overcurrent, and undervoltage conditions.

Depending upon application, only one or two tiny surface-mount external components are required; performance is specified for a –40°C to +125°C junction temperature range. The device is available in fixed output voltages from 0.5 V to 2 V. For availability, please contact your local Texas Instruments sales office.

For all available packages, see the orderable addendum at the end of the data sheet.

The LP5952 is a dual-supply-rail linear regulator optimized for powering ultralow-voltage circuits from a single Li-Ion cell or 3-cell NiMH/NiCd battery.

In the typical post-regulation application VBATT is directly connected to the battery (range 2.5 V to
5.5 V), and VIN is supplied by the output voltage of the DC-DC converter (range 0.7 V to 4.5 V).

The device offers superior dropout and transient features combined with very low quiescent currents. In shutdown mode (Enable (EN) pin pulled low) the device turns off and reduces battery consumption to 0.1 µA (typical). The LP5952 also features internal protection against overtemperature, overcurrent, and undervoltage conditions.

Depending upon application, only one or two tiny surface-mount external components are required; performance is specified for a –40°C to +125°C junction temperature range. The device is available in fixed output voltages from 0.5 V to 2 V. For availability, please contact your local Texas Instruments sales office.

For all available packages, see the orderable addendum at the end of the data sheet.
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Technical documentation

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* Data sheet LP5952 350-mA Dual-Rail Linear Regulator datasheet (Rev. F) PDF | HTML 17 Dec 2015
EVM User's guide AN-1531 LP5952 Evaluation Board (Rev. B) 30 Apr 2013

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

LP5952LC-1.5EV — LP5952LC-1.5EV EVALUATION BOARD

The LP5952 is a Dual Supply Rail Linear Regulator optimized for powering ultra-low voltage circuits from a single Li-Ion cell or 3 cell NiMH/NiCd batteries.

In the typical post regulation application VBATT is directly connected to the battery (range 2.5V ?5.5V) and VIN is supplied by the output (...)

User guide: PDF
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DSBGA (YZR) 5 View options
USON (NKH) 6 View options
TI's Standard Terms and Conditions for Evaluation Items apply.

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