LP5952 - 350mA 双路轨线性稳压器

LP5952是TI德州仪器公司的一款单通道LDO产品，LP5952是350mA 双路轨线性稳压器，本站介绍了LP5952的封装应用图解、特点和优点、功能等，并给出了与LP5952相关的TI元器件型号供参考。

LP5952 - 350mA 双路轨线性稳压器 - 单通道LDO - 线性稳压器(LDO) - 德州仪器

产品描述

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 voltage of the DC-DC Converter (range 0.7V...4.5V).

The device offers superior dropout and transient features combined with very low quiescent currents. In shutdown mode (Enable pin pulled low) the device turns off and reduces battery consumption to 0.1µA (typ.).

The LP5952 also features internal protection against over-temperature, over-current and under-voltage conditions.

Performance is specified for a -40°C to 125°C junction temperature range.

The device is available in a tiny 5-bump DSBGA and a 6-pin Chip On Lead USON package, lead free.

The device is available in fixed output voltages in the range of 0.5V to 2.0V. For availability, please contact your local Texas Instruments sales office.

产品特性

Excellent load transient response: ±15mV typical
Excellent line transient response: ±1mV typical
0.7V ≤ VIN ≤ 4.5V
2.5V ≤ VBATT ≤ 5.5V
0.5V ≤ VOUT ≤ 2.0V
For ILOAD = 350mA:
- VBATT ≥ VOUT(NOM) + 1.5V or 2.5V whichever is higher
For ILOAD = 150mA:
- VBATT ≥ VOUT(NOM) + 1.3V or 2.5V whichever is higher
50µA typical quiescent current from VBATT
10µA typical quiescent current from VIN
0.1µA typical quiescent current in shutdown
Ensured 350mA output current
Noise voltage = 100µVRMS typical
Operates from a single Li-Ion cell or 3 cell
NiMH/NiCd batteries
Only one or two tiny surface-mount external components required depending on application
Small, thin 5-bump DSBGA package and 6-pin Chip On Lead USON package, lead free
Thermal-overload and short-circuit protection
-40°C to +125°C junction temperature range

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