Document
19-1177; Rev. 0; 12/96
SOT23, Low-Cost, Low-Dropout, 3-Terminal Voltage References
_______________General Description
The MAX6125/MAX6141/MAX6145/MAX6150/MAX6160 low-dropout, micropower, three-terminal voltage references offer 2.5V, 4.096V, 4.5V, 5.0V, and adjustable (1.23V to 12.4V) output voltages, respectively. Low, 200mV dropout makes these devices ideal for 3V and 5V systems. Unlike two-terminal references that waste battery current and require an external resistor, the MAX61xx family’s supply current is virtually independent of input voltage variations, which translates to longer battery life. Initial accuracy for these devices is ±1%. The output temperature coefficient is typically 15ppm/°C, and guaranteed to be less than 50ppm/°C (except for the MAX6160). The MAX6125/MAX6141/MAX6145/ MAX6150 are available in 3-pin SOT23 and 8-pin SO packages. The MAX6160 is available in 4-pin SOT143 and 8-pin SO packages.
____________________________Features
o 3-Pin SOT23 Package (MAX6125/41/45/50) 4-Pin SOT143 Package (MAX6160) o Low, 200mV Dropout Voltage o 75µA Supply Current, Independent of Input Voltage o 15ppm/°C Typical Tempco (50ppm/°C max) o Stable for All Capacitive Loads up to 10nF o Adjustable Output Voltage from 1.23V to (VIN - 0.2V) (MAX6160) o Optimized for 3V/5V Operation
MAX6125/MAX6141/MAX6145/MAX6150/MAX6160
________________________Applications
3V/5V Systems Battery-Powered Systems Portable and Hand-Held Equipment Data-Acquisition Systems Instrumentation and Process Control
_____________________Selector Guide
PART MAX6125 MAX6141 MAX6145 MAX6150 MAX6160 PRESET OUTPUT VOLTAGE (V) 2.5 4.096 4.5 5 Adjustable (1.23 to 12.40) PACKAGE
______________Ordering Information
3 SOT23/8 SO 3 SOT23/8 SO 3 SOT23/8 SO 3 SOT23/8 SO 4 SOT143/8 SO PART MAX6125ESA MAX6125EUR MAX6141ESA MAX6141EUR TEMP. RANGE -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C PINPACKAGE 8 SO 3 SOT23-3 8 SO 3 SOT23-3 SOT TOP MARK — EBAA — ECAA
Typical Operating Circuit appears on last page.
Ordering Information continued on last page.
__________________________________________________________Pin Configurations
TOP VIEW
OUT 1 N.C. 2 N.C. 3 GND 4
8
IN N.C. N.C. N.C. (ADJ)
IN 1
GND 1
4
OUT
MAX6125 MAX6141 MAX6145 MAX6150 MAX6160
7 6 5
OUT 2
MAX6125 MAX6141 MAX6145 MAX6150
SOT23-3
MAX6160
3 GND
ADJ 2 3 IN
SO
( ) ARE FOR MAX6160 ONLY
SOT143
________________________________________________________________ Maxim Integrated Products
1
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SOT23, Low-Cost, Low-Dropout, 3-Terminal Voltage References MAX6125/MAX6141/MAX6145/MAX6150/MAX6160
ABSOLUTE MAXIMUM RATINGS
Voltage (with respect to GND) IN .......................................................................-0.3V to +13.5V OUT, ADJ...................................................-0.3V to (VIN + 0.3V) Output Short-Circuit Duration (to IN or GND).............Continuous Continuous Power Dissipation (TA = +70°C) 8-Pin SO (derate 5.9mW/°C above +70°C)....................471mW 3-Pin SOT23 (derate 4mW/°C above +70°C).................320mW 4-Pin SOT143 (derate 4mW/°C above +70°C)...............320mW Operating Temperature Range ...........................-40°C to +85°C Storage Temperature Range .............................-65°C to +160°C Lead Temperature (soldering, 10sec) .............................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS—MAX6125
(VIN = 2.7V, IOUT = 0mA, TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER Supply Voltage Output Voltage Output Voltage Temperature Coefficient Output Voltage Noise Line Regulation Load Regulation Quiescent Supply Current Change in Supply Current vs. Change in Input Voltage SYMBOL VIN VOUT TCVOUT en TA = +25°C TA = TMIN to TMAX TA = TMIN to TMAX 0.1Hz to 10Hz 10Hz to 10kHz ISOURCE = 0mA to 1mA ISINK = 0mA to 1mA TA = +25°C TA = TMIN to TMAX VIN = 2.7V to 12.6V 1.7 CONDITIONS TA = TMIN to TMAX MIN 2.7 2.475 2.450 15 15 500 1 0.4 1.15 75 50 1 10 100 130 6 2.500 TYP MAX 12.6 2.525 2.550 50 UNITS V V ppm/°C µVp-p µV/V mV/mA µA µA/V
∆VOUT/∆VIN VIN = 2.7V to 12.6V, TA = TMIN to TMAX ∆VOUT/∆IOUT IQ ∆IQ/∆VIN
ELECTRICAL CHARACTERISTICS—MAX6141
(VIN = 4.3V, IOUT = 0mA, TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER Supply Voltage Output Voltage Output Voltage Temperature Coefficient Output Voltage Noise Line Regulation Load Regulation Quiescent Supply Current Change in Supply Current vs. Change in Input Voltage 2 SYMBOL VIN VOUT TCVOUT en TA = +25°C TA = TMIN to TMAX TA = TMIN to TMAX 0.1Hz to 10Hz 10Hz to 10kHz CONDITIONS TA = TMIN to TMA.