Specification	LM4121IM5-1.2/NOPB

Current - Output	5 mA
Current - Supply	275 µA
Mounting Type	Surface Mount
Noise - 0.1Hz to 10Hz	20 µVrms
Noise - 10Hz to 10kHz	30 µVrms
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Type	1.81 mOhm
Package / Case	SC-74A, SOT-753
Reference Type	Series
Supplier Device Package	SOT-23-5
Temperature Coefficient	50 ppm/°C
Voltage - Input [Max]	12 V
Voltage - Input [Min]	1.5 V
Voltage - Output (Min/Fixed)	1.25 V

LM4121 Series

Part	Current - Supply	Reference Type	Operating Temperature [Max]	Operating Temperature [Min]	Current - Output	Voltage - Output (Min/Fixed)	Mounting Type	Voltage - Output (Max)	Package / Case	Temperature Coefficient	Noise - 0.1Hz to 10Hz	Voltage - Input [Min]	Voltage - Input [Max]	Tolerance	Noise - 10Hz to 10kHz	Output Type	Supplier Device Package	Output Type
Texas Instruments LM4121AIM5-ADJ	275 µA	Series	85 °C	-40 °C	5 mA	1.216 V	Surface Mount	12 V	SC-74A SOT-753	50 ppm/°C	20 µVrms	1.5 V	12 V	0.2 %	30 µVrms	Adjustable	SOT-23-5
Texas Instruments LM4121IM5X-ADJ	275 µA	Series	85 °C	-40 °C	5 mA	1.216 V	Surface Mount	12 V	SC-74A SOT-753	50 ppm/°C	20 µVrms	1.5 V	12 V		30 µVrms	Adjustable	SOT-23-5
Texas Instruments LM4121AIM5-ADJ/NOPB	275 µA	Series	85 °C	-40 °C	5 mA	1.216 V	Surface Mount	12 V	SC-74A SOT-753	50 ppm/°C	20 µVrms	1.5 V	12 V	0.2 %	30 µVrms	Adjustable	SOT-23-5
Texas Instruments LM4121AIM5X-ADJ	275 µA	Series	85 °C	-40 °C	5 mA	1.216 V	Surface Mount	12 V	SC-74A SOT-753	50 ppm/°C	20 µVrms	1.5 V	12 V	0.2 %	30 µVrms	Adjustable	SOT-23-5
Texas Instruments LM4121IM5-ADJ	275 µA	Series	85 °C	-40 °C	5 mA	1.216 V	Surface Mount	12 V	SC-74A SOT-753	50 ppm/°C	20 µVrms	1.5 V	12 V		30 µVrms	Adjustable	SOT-23-5
Texas Instruments LM4121AIM5X-1.2	275 µA	Series	85 °C	-40 °C	5 mA	1.25 V	Surface Mount		SC-74A SOT-753	50 ppm/°C	20 µVrms	1.5 V	12 V	0.2 %	30 µVrms		SOT-23-5	1.81 mOhm
Texas Instruments LM4121IM5-1.2	275 µA	Series	85 °C	-40 °C	5 mA	1.25 V	Surface Mount		SC-74A SOT-753	50 ppm/°C	20 µVrms	1.5 V	12 V		30 µVrms		SOT-23-5	1.81 mOhm
Texas Instruments LM4121AIM5X-ADJ/NOPB	275 µA	Series	85 °C	-40 °C	5 mA	1.216 V	Surface Mount	12 V	SC-74A SOT-753	50 ppm/°C	20 µVrms	1.5 V	12 V	0.2 %	30 µVrms	Adjustable	SOT-23-5
Texas Instruments LM4121IM5-ADJ/NOPB	275 µA	Series	85 °C	-40 °C	5 mA	1.216 V	Surface Mount	12 V	SC-74A SOT-753	50 ppm/°C	20 µVrms	1.5 V	12 V		30 µVrms	Adjustable	SOT-23-5
Texas Instruments LM4121IM5-1.2/NOPB	275 µA	Series	85 °C	-40 °C	5 mA	1.25 V	Surface Mount		SC-74A SOT-753	50 ppm/°C	20 µVrms	1.5 V	12 V		30 µVrms		SOT-23-5	1.81 mOhm

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 3.27
		10	$ 2.13
		25	$ 1.84
		100	$ 1.50
		250	$ 1.34
		500	$ 1.24
	Digi-Reel®	1	$ 3.27
		10	$ 2.13
		25	$ 1.84
		100	$ 1.50
		250	$ 1.34
		500	$ 1.24
	Tape & Reel (TR)	1000	$ 1.14
		2000	$ 1.06
		5000	$ 1.02
		10000	$ 0.98
Texas Instruments	LARGE T&R	1	$ 1.75
		100	$ 1.44
		250	$ 1.03
		1000	$ 0.78

Description

General part information

LM4121 Series

The LM4121 is a precision bandgap voltage reference available in a fixed 1.25V and adjustable version with up to 5 mA current source and sink capability.

This series reference operates with input voltages as low as 1.8V and up to 12V consuming 160 µA (Typ.) supply current. In power down mode, device current drops to less than 2 μA.

The LM4121 comes in two grades A and Standard. The best grade devices (A) have an initial accuracy of 0.2%, while the standard have an initial accuracy of 0.5%, both with a tempco of 50ppm/°C ensured from −40°C to +125°C.

Documents

Technical documentation and resources

LM4121 Precision Micropower Low Dropout Voltage Reference datasheet (Rev. C)

Data sheet