LP5952TLX-1.2

Product Summary

The LP5952TLX-1.2 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 of the LP5952TLX-1.2 is directly connected to the battery (range 2.5V to 5.5V) and VIN is supplied by the output voltage of the DC-DC Converter (range 0.7V 4.5V). The LP5952TLX-1.2 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 LP5952TLX-1.2 also features internal protection against overtemperature, over-current and under-voltage conditions. Performance is specified for a -40℃ to 125℃ junction temperature range.

Parametrics

LP5952TLX-1.2 absolute maximum ratings: (1)VIN, VBATT pins: Voltage to GND,; (2)VIN ≤ VBATT: -0.2V to 6.0V; (3)VBATT pin to VIN pin: 0.2V; (4)EN pin: Voltage to GND: -0.2V to 6.0V; (5)Continuous Power Dissipation; (6)(Note 3): Internally Limited; (7)Junction Temperature (TJ-MAX ): 150℃; (8)Storage Temperature Range: -65℃ to + 150℃; (9)Package Peak Reflow Temperature; (10)(Pb-free, 10-20 sec.)(Note 4): 260℃; (11)ESD Rating(Note 5); (12)Human Body Model: 2.0kV; (13)Machine Model: 200V.

Features

LP5952TLX-1.2 features: (1)Excellent load transient response: ±15mV typical; (2)Excellent line transient response: ±1mV typical; (3)0.7V ≤ VIN ≤ 4.5V; (4)2.5V ≤ VBATT ≤ 5.5V; (5)0.5V ≤ VOUT ≤ 2.0V; (6)For ILOAD = 350mA: VBATT ≥ VOUT(NOM) + 1.5V or 2.5V whichever is higher; (7)For ILOAD = 150mA: VBATT ≥ VOUT(NOM) + 1.3V or 2.5V whichever is higher; (8)50μA typical quiescent current from VBATT; (9)10μA typical quiescent current from VIN; (10)0.1μA typical quiescent current in shutdown; (11)Guaranteed 350mA output current; (12)Noise voltage = 100μVRMS typical; (13)Operates from a single Li-Ion cell or 3 cell NiMH/NiCd batteries; (14)Only one or two tiny surface-mount external components required depending on application; (15)Small 5 bump micro SMD package, lead free; (16)Thermal-overload and short-circuit protection; (17)-40℃ to +125℃ junction temperature range.

Diagrams