Datasheet LT3032 (Analog Devices) - 5

LT3032 Series
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. PARAMETER CONDITIONS MIN TYP MAX UNITS
Quiescent Current in Shutdown VINP = 6V, VSHDNP = 0V, VINN = 0V l 0.1 8 µA VINN = –6V, VSHDNN = 0V, VINP = 0V (LT3032, LT3032-3.3, l –3 –10 µA LT3032-5) VINN = VOUT(NOMINAL) –1V, VSHDNN = 0V, VINP = 0V l 10 20 µA (LT3032-12/ LT3032-15) Output Voltage Noise (10Hz to 100kHz) COUTP = 10µF, CBYPP 0.01µF, ILOAD = 150mA 20 µVRMS COUTN = 10µF, CBYPN 0.01µF, ILOAD = –150mA 30 µVRMS Ripple Rejection VINP to VOUTP = 1.5V (Average), ILOAD = 100mA 50 68 dB VRIPPLE = 0.5VP-P, fRIPPLE = 120Hz VINN to VOUTN = –1.5V (Average), ILOAD = –100mA 46 54 dB Current Limit (Note 12) VINP = 7V, VOUTP = 0V 400 mA VINN = –7V, VOUTN = 0V 350 mA VINP = 2.3V or VOUTP(NOMINAL) + 1V, ΔVOUTP = –0.1V l 170 mA VINN = –2.3V or VOUTP(NOMINAL) – 1V, ΔVOUTN = 0.1V l 170 mA INP Reverse Leakage Current VINP = –20V, VOUTP = 0V l –1 mA INN Reverse Leakage Current VINN = 20V, VOUTN, VADJN, VSHDNN = Open Circuit l 1 mA Reverse Output Current LT3032-3.3 VOUTP = 3.3V, VINP < 3.3V 10 20 µA (Notes 5, 11) LT3032-5 VOUTP = 5V, VINP < 5V 10 20 µA LT3032-12 VOUTP = 12V, VINP < 12V 25 50 µA LT3032-15 VOUTP = 15V, VINP < 15V 25 50 µA LT3032 VOUTP = VADJP = 1.22V, VINP < 1.22V 5 10 µA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings For lower output voltages, dropout voltage is limited by the minimum may cause permanent damage to the device. Exposure to any Absolute input voltage specification under some output voltage/load conditions; Maximum Rating condition for extended periods may affect device see curves for Minimum INN Voltage and Minimum INP Voltage in Typical reliability and lifetime. Performance Characteristics. LTC is unable to guarantee Maximum
Note 2:
The LT3032 is tested and specified under pulse load conditions Dropout Voltage specifications at 50mA and 150mA due to production such that T test limitations with Kelvin-Sensing the package pins. Please consult the J ≅ TA. The LT3032E is 100% tested at TA = 25°C. Performance of the LT3032E over the full –40°C to 125°C operating junction Typical Performance Characteristics for curves of Dropout Voltage as a temperature range is assured by design, characterization, and correlation function of Output Load Current and Temperature. with statistical process controls. The LT3032I regulators are guaranteed
Note 8:
GND pin current is tested with VINP = VOUTP(NOMINAL) or VINN = over the full –40°C to 125°C operating junction temperature range. VOUTN(NOMINAL) and a current source load. This means the device is tested
Note 3:
Parasitic diodes exist internally between the INN pin and the OUTN, while operating in its dropout region. This is the worst-case GND pin ADJN, and SHDNN pins. These pins cannot be pulled more than 0.5V current. GND pin current decreases slightly at higher input voltages. below the INN pin during fault conditions, and must remain at a voltage
Note 9:
Positive current flow is into the pin. Negative current flow is out of more positive than the INN pin during operation. the pin.
Note 4:
Operating conditions are limited by maximum junction
Note 10:
For input-to-output differential voltages from INN to OUTN temperature. Specifications do not apply for all possible combinations of greater than –7V, a –50µA load is needed to maintain regulation. input voltages and output currents. When operating at maximum input
Note 11:
Reverse output current is tested with the INP pin grounded and voltages, the output current ranges must be limited. When operating at the OUTP pin forced to the nominal output voltage. This current flows into maximum output currents, the input voltage ranges must be limited. the OUTP pin and out the GND pin.
Note 5:
The LT3032 is tested and specified for these conditions with the
Note 12:
Positive side current limit is tested at VINP = 2.3V or ADJP pin tied to the OUTP pin and the ADJN pin tied to the OUTN pin. VOUTP(NOMINAL) + 1V (whichever is more positive). Negative side current
Note 6:
To satisfy requirements for minimum input voltage, the LT3032 is limit is tested at VINN = –2.3V or VOUTN(NOMINAL) – 1V (whichever is more tested and specified for these conditions with an external resistor divider negative). (two 250k resistors) from OUTP/OUTN to the corresponding ADJP/ADJN
Note 13:
LTC is unable to guarantee load regulation specifications on pin to give an output voltage of ±2.44V. The external resistor divider adds fixed voltage versions of the LT3032 due to production test limitations a 5µA DC load on the output. The LT3032-12/LT3032-15 have higher with Kelvin-Sensing the package pins. Please consult the Typical internal resistor divider current, resulting in higher GND pin current at Performance Characteristics for curves of Load Regulation as a function of light/no load. Temperature.
Note 7:
Dropout voltage is the minimum input-to-output voltage differential needed to maintain regulation at a specified output current. In dropout, output voltage equals: VINP/INN – VDROPOUT 3032ff For more information www.linear.com/LT3032 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Applications Information Package Description Revision History Typical Application Related Parts