MCP1811A/11B/12A/12B
Ultra-Low Quiescent Current LDO Regulator
for Long-Life Battery-Powered Applications
Features Description
Ultra-Low Quiescent Current: 250 nA (typical)
The MCP1811X/12X devices are 150 mA (MCP1811X)
Ultra-Low Shutdown Supply Current: and 300 mA (MCP1812X) Low Dropout (LDO) linear
regulators that provide high-current and low output
- 10 nA typical for MCP1811A/12A
voltages while maintaining an ultra-low 250 nA of
- 5 nA typical for MCP1811B/12B
quiescent current during device operation. In addition,
Output Current Capability:
the MCP1811B/12B can be shut down for 5 nA (typical)
- 150 mA for MCP1811X (Note 1)
supply current draw.
- 300 mA for MCP1812X
The MCP1811X/12X family comes in nine standard
Input Voltage Range: 1.8V to 5.5V
fixed output voltage versions: 1V, 1.2V, 1.8V, 2.0V,
Standard Output Voltages (V ): 1V, 1.2V, 1.8V, 2.0V,
2.5V, 2.8V, 3.0V, 3.3V and 4.0V.
R
2.5V, 2.8V, 3.0V, 3.3V and 4.0V; for any other voltage
The 150/300 mA output current capability, combined
options (between 1V to 4V), please contact your local
with the low output voltage capability, make the
sales office
MCP1811X/12X device family a good choice for new
Stable with Ceramic Output Capacitor:
ultra-long life LDO applications that have high-current
1.0 F (MCP1811X) and 2.2 F (MCP1812X)
demands, but require ultra-low power consumption
Overcurrent Protection
during Sleep periods.
Output Discharge (Shutdown mode,
The MCP1811X/12X devices are stable with ceramic
SHDN = GND) MCP1811A/12A
output capacitors that inherently provide lower output
Available for the Following Packages:
noise, and reduce the size and cost of the entire
regulator solution. Only 1 F (2.2 F for MCP1812X) of
- 3-Lead SOT-23
output capacitance is needed to assure the stability of
- 3-Lead SC70
the system with a low noise output.
- 4-Lead 1 x 1 mm UDFN
The MCP1811X/12X family can be paired with other
- 5-Lead SOT-23
ultra-low current devices, such as Microchips eXtreme
- 5-Lead SC70
Low-Power (XLP) technology devices, for a complete
ultra-low power solution.
Applications
Note 1: The MCP1811X and MCP1812X desig-
Energy Harvesting
nations refer to MCP1811A/11B and
Long-Life, Battery-Powered Applications
MCP1812A/12B, respectively.
Smart Cards
Ultra-Low Consumption Green Products
Wearable Electronics (smart watches, bracelets,
headsets)
Medical Devices (hearing aids)
2018-2020 Microchip Technology Inc. DS20006088C-page 1MCP1811A/11B/12A/12B
Package Types
3-Lead SOT-23/SC70 5-Lead SOT-23/SC70 4-Lead 1x1 mm UDFN
GND V NC V SHDN
OUT IN
43
3
5 4
EP*
1 2
5
1 2 3
V SHDN
IN
V V
GND
OUT IN
Top View 12
V GND
OUT
* Includes Exposed Thermal Pad (see Table 3-1).
DS20006088C-page 2 2018-2020 Microchip Technology Inc.