LD29080DT33R ,800mA FIXED AND ADJUSTABLE OUTPUT VERY LOW DROP VOLTAGE REGULATORElectrical Characteristics Of LD29080#15 (I = 10mA (Note 4), T = 25°C, V = 3.5V, V = 2V, C = 330nF, ..
LD29080DT33R ,800mA FIXED AND ADJUSTABLE OUTPUT VERY LOW DROP VOLTAGE REGULATORLD29080SERIES800mA FIXED AND ADJUSTABLE OUTPUTVERY LOW DROP VOLTAGE REGULATORPRELIMINARY DATA
LD29080DT33R-LD29080PT25R-LD29080PT33R
800mA FIXED AND ADJUSTABLE OUTPUT VERY LOW DROP VOLTAGE REGULATOR
1/21October 2004 VERY LOW DROPOUT VOLTAGE
(TYP. 0.4V AT 800mA) GUARANTEED OUTPUT CURRENT UP TO
800mA FIXED AND ADJUSTABLE OUTPUT
VOLTAGE (±1% AT 25°C) INTERNAL CURRENT AND THERMAL LIMIT LOGIC CONTROLLED ELECTRONIC
SHUTDOWN
DESCRIPTION The LD29080 is a high current, high accuracy,
low-dropout voltage regulators series. These
regulators feature 400mV dropout voltages and
very low ground current. Designed for high current
loads, these devices also find applications in lower
current, extremely low dropout-critical systems,
where their tiny dropout voltage and ground
current values are important attributes. Typical
application are in Power supply switching post
regulation, Series power supply for monitors,
Series power supply for VCRs and TVs, Computer
Systems and Battery powered systems.
LD29080
SERIES800mA FIXED AND ADJUSTABLE OUTPUT
VERY LOW DROP VOLTAGE REGULATOR
Figure 1: Schematic Diagram For Adjustable Version
PRELIMINARY DATARev. 1
LD29080 SERIES2/21
Figure 2: Schematic Diagram For Fixed Version
Table 1: Ordering Codes (*) Available in Tape & Reel with the suffix "R", for the adj version "-R"
(**) Available on Request
Table 2: Absolute Maximum Ratings (*) Above 14V the device is automatically in shut-down.
Absolute Maximum Ratings are those beyond which damage to the device may occur. Functional operation under these condition is not im-
plied.
LD29080 SERIES3/21
Table 3: Thermal Data
Figure 3: Pin Connection (top view)
Table 4: Pin Description * Not internally pulled up; in order to assure the operating condition (device in ON mode), it must be connected to a positive voltage higher
than 2V.
** Not connect for fixed version.
LD29080 SERIES4/21
Figure 4: Application Circuit * Only for version with inhibit function.
Table 5: Electrical Characteristics Of LD29080#15 O = 10mA (Note 4), TJ = 25°C, VI = 3.5V, V INH = 2V, CI = 330nF, CO = 10μF, unless otherwise specified)
NOTE 1: Guaranteed by design.
NOTE 2: Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with VO+1V
applied to VI.
NOTE 3: Reference Voltage is measured between output and GND pins, with ADJ PIN tied to VOUT.
NOTE 4: in order to avoid any output voltage rise within the whole operating temperature range, due to output leakage current, a minimum
load current of 2mA is required.
LD29080 SERIES5/21
Table 6: Electrical Characteristics Of LD29080#18O = 10mA (Note 4), TJ = 25°C, VI = 3.5V, V INH = 2V, CI = 330nF, CO = 10μF, unless otherwise specified)
NOTE 1: Guaranteed by design.
NOTE 2: Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with VO+1V
applied to VI.
NOTE 3: Reference Voltage is measured between output and GND pins, with ADJ PIN tied to VOUT.
NOTE 4: in order to avoid any output voltage rise within the whole operating temperature range, due to output leakage current, a minimum
load current of 2mA is required.
LD29080 SERIES6/21
Table 7: Electrical Characteristics Of LD29080#25O = 10mA (Note 4), TJ = 25°C, VI = 4.5V, V INH = 2V, CI = 330nF, CO = 10μF, unless otherwise specified)
NOTE 1: Guaranteed by design.
NOTE 2: Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with VO+1V
applied to VI.
NOTE 3: Reference Voltage is measured between output and GND pins, with ADJ PIN tied to VOUT.
NOTE 4: in order to avoid any output voltage rise within the whole operating temperature range, due to output leakage current, a minimum
load current of 2mA is required.
LD29080 SERIES7/21
Table 8: Electrical Characteristics Of LD29080#33O = 10mA (Note 4), TJ = 25°C, VI = 5.3V, V INH = 2V, CI = 330nF, CO = 10μF, unless otherwise specified)
NOTE 1: Guaranteed by design.
NOTE 2: Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with VO+1V
applied to VI.
NOTE 3: Reference Voltage is measured between output and GND pins, with ADJ PIN tied to VOUT.
NOTE 4: in order to avoid any output voltage rise within the whole operating temperature range, due to output leakage current, a minimum
load current of 2mA is required.
LD29080 SERIES8/21
Table 9: Electrical Characteristics Of LD29080#50O = 10mA (Note 4), TJ = 25°C, VI = 7V, V INH = 2V, CI = 330nF, CO = 10μF, unless otherwise specified)
NOTE 1: Guaranteed by design.
NOTE 2: Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with VO+1V
applied to VI.
NOTE 3: Reference Voltage is measured between output and GND pins, with ADJ PIN tied to VOUT.
NOTE 4: in order to avoid any output voltage rise within the whole operating temperature range, due to output leakage current, a minimum
load current of 2mA is required.
LD29080 SERIES9/21
Table 10: Electrical Characteristics Of LD29080#80O = 10mA (Note 4), TJ = 25°C, VI = 10V, V INH = 2V, CI = 330nF, CO = 10μF, unless otherwise specified)
NOTE 1: Guaranteed by design.
NOTE 2: Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with VO+1V
applied to VI.
NOTE 3: Reference Voltage is measured between output and GND pins, with ADJ PIN tied to VOUT.
NOTE 4: in order to avoid any output voltage rise within the whole operating temperature range, due to output leakage current, a minimum
load current of 2mA is required.
LD29080 SERIES10/21
Table 11: Electrical Characteristics Of LD29080#90O = 10mA (Note 4), TJ = 25°C, VI = 11V, V INH = 2V, CI = 330nF, CO = 10μF, unless otherwise specified)
NOTE 1: Guaranteed by design.
NOTE 2: Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with VO+1V
applied to VI.
NOTE 3: Reference Voltage is measured between output and GND pins, with ADJ PIN tied to VOUT.
NOTE 4: in order to avoid any output voltage rise within the whole operating temperature range, due to output leakage current, a minimum
load current of 2mA is required.
LD29080 SERIES11/21
Table 12: Electrical Characteristics Of LD29080#ADJO = 10mA (Note 4), TJ = 25°C, VI = 3.23 V, V INH = 2V, CI = 330nF, CO = 10μF adjust pin tied to output
pin, unless otherwise specified)
NOTE 1: Guaranteed by design.
NOTE 2: Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with VO+1V
applied to VI.
NOTE 3: Reference Voltage is measured between output and GND pins, with ADJ PIN tied to VOUT.
NOTE 4: in order to avoid any output voltage rise within the whole operating temperature range, due to output leakage current, a minimum
load current of 2mA is required.
TYPICAL CHARACTERISTICS
Figure 5: Output Voltage vs Temperature
Figure 6: Reference Voltage vs Temperature
