ELM84xxxxxACMOS 1.2A high current LDO voltage regulator

ELM84xxxxxA is CMOS voltage regulator which is characterized with high current 1.2A and low dropout (45mV at Vout=3.3V and Iout=300mA). There are 2 types of CE selection of ELM84 series: non-chip enable function and “H” active. The standard output voltages are 1.2V, 1.8V, 3.3V, 5.0V. ELM84 series can also be made as semi-custom IC within the range of 0.8V to 5.0V by 0.1V step. This series includes short circuit current limiter, inrush current limiter and thermal shutdown circuit. Ceramic capacitors with low ESR can be used as input and output ones. Output capacitor discharge function is also available as semi-custom.

Thermal protection circuit
Current limit protection circuit
Short protection circuit
Output voltage range0.8V to 5.0V (by 0.1V)
Output currentMin.1.2A, Typ.1.8A
Stand by current consumptionMax. 1µA
(Vin=6.0V at 25°C)
Load stabilityTyp.15mV
(1mA≤Iout≤300mA)
Input stabilityTyp. 0.02%/V
(Vout=3.3V, Iout=100mA)
Accuracy of output voltage±1.0%(Vout≥2.0V) or
±20mV(Vout<2.0V)
at Iout=100mA
Package SOT-89
SOT-89-5
SOT-23
SOT-25
SON8-3x3
DatasheetELM84series
Application
Battery operated devices
Digital cameras
Video recorders
Reference voltage source

Absolute Maximum Ratings

ParameterSymbolLimitUnit
ParameterSymbolLimitUnit
Input voltageVinVss-0.3 to 6.5V
CE Input voltageVceVss-0.3 to 6.5V
Output voltageVoutVss-0.3 to Vin+0.3V
Output currentIout2000(*1)mA
Power dissipationPd1000(SOT-89)(*2)
1000(SOT-89-5)(*2)
500(SOT-23)(*2)
600(SOT-25)(*2)
1000(SON8-3×3)(*2)
mW
Operating temperatureTop-40 to +85°C
Storage temperatureTstg-55 to +125°C
  • * 1. Output current must not exceed power dissipation specified in maximum absolute ratings.
    * 2. Mounted on glass epoxy board (FR-4). (76.2mm×114.3mm×1.6mm : based on EIJ/JEDEC standard size), 2layers,
    Cu thickness 35μm, Cu area : top side 20%, back side 100%.

Block diagram

ELM84xx1xxA

block-diagram

ELM84xx3xxA

block-diagram

ELM84xx4xxA

block-diagram