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LD29150PT50RSTN/a12000avai1.5A VERY LOW DROP VOLTAGE REGULATOR
LD29150PTN/a632avai1.5A, VERY LOW DROP VOLTAGE REGULATORS
LD29150PT33STN/a5337avai1.5A VERY LOW DROP VOLTAGE REGULATOR
LD29150PT33RSTN/a1400avai1.5A VERY LOW DROP VOLTAGE REGULATOR
LD29150DT18STN/a29800avai1.5A, VERY LOW DROP VOLTAGE REGULATORS
LD29150DT18RST进口N/a21230avai1.5A VERY LOW DROP VOLTAGE REGULATOR
LD29150DT18RSTN/a28600avai1.5A VERY LOW DROP VOLTAGE REGULATOR
LD29150DT25RSTMN/a49avai1.5A VERY LOW DROP VOLTAGE REGULATOR
LD29150DT33STN/a107avai1.5A, VERY LOW DROP VOLTAGE REGULATORS
LD29150DT33RSTN/a1240avai1.5A VERY LOW DROP VOLTAGE REGULATOR
LD29150DT50STN/a190avai1.5A, VERY LOW DROP VOLTAGE REGULATORS
LD29150DT50RSTMN/a1540avai1.5A VERY LOW DROP VOLTAGE REGULATOR
LD29150DT50RST N/a58588avai1.5A VERY LOW DROP VOLTAGE REGULATOR
LD29150DT80RSTN/a2500avai1.5A VERY LOW DROP VOLTAGE REGULATOR
LD29150PTSTN/a2500avai1.5A, VERY LOW DROP VOLTAGE REGULATORS
LD29150PTSOT-252N/a7700avai1.5A, VERY LOW DROP VOLTAGE REGULATORS
LD29150PT50RST Pb-freeN/a517avai1.5A VERY LOW DROP VOLTAGE REGULATOR
LD29150PTRSTMN/a809avai1.5A VERY LOW DROP VOLTAGE REGULATOR


LD29150DT50R ,1.5A VERY LOW DROP VOLTAGE REGULATORAbsolute Maximum Ratings are those beyond which damage to the device may occur. Functional operatio ..
LD29150DT50R ,1.5A VERY LOW DROP VOLTAGE REGULATORElectrical Characteristics Of LD29150#18(I = 10mA, T = 25°C, V = 3.8V, V = 2V (Note 3), C = 330nF, ..
LD29150DT80R ,1.5A VERY LOW DROP VOLTAGE REGULATORElectrical Characteristics Of LD29150#18(I = 10mA, T = 25°C, V = 3.8V, V = 2V (Note 3), C = 330nF, ..
LD29150P2T33R ,1.5 A, very low drop voltage regulatorsFeatures• Very low dropout voltage (typ. 0.4 at 1.5 A)• Guaranteed output current up to 1.5 A• Fixe ..
LD29150PT ,1.5A, VERY LOW DROP VOLTAGE REGULATORSElectrical Characteristics Of LD29150#25(I = 10mA, T = 25°C, V = 4.5V, V = 2V (Note 3), C = 330nF, ..
LD29150PT ,1.5A, VERY LOW DROP VOLTAGE REGULATORSLD29150SERIES1.5A, VERY LOW DROP VOLTAGE REGULATORS

LD29150DT18-LD29150DT18R-LD29150DT25R-LD29150DT33-LD29150DT33R-LD29150DT50-LD29150DT50R-LD29150DT80R-LD29150PT-LD29150PT33-LD29150PT33R-LD29150PT50R-LD29150PTR
1.5A VERY LOW DROP VOLTAGE REGULATOR
1/17November 2004 VERY LOW DROPOUT VOLTAGE (TYP. 0.4
AT 1.5A) GUARANTEED OUTPUT CURRENT UP TO
1.5A FIXED AND ADJUSTABLE OUTPUT
VOLTAGE (±1% AT 25°C) INTERNAL CURRENT AND THERMAL LIMIT LOGIC CONTROLLED ELECTRONIC
SHUTDOWN AVAILABLE IN PPAK
DESCRIPTION

The LD29150 is a high current, high accuracy,
low-dropout voltage regulator series. These
regulators feature 400mV dropout voltage and
very low ground current. Designed for high current
loads, these devices are also used in lower
current, extremely low dropout-critical systems,
where their tiny dropout voltage and ground
current values are important attributes. Typical
applications 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.
LD29150
SERIES

1.5A, VERY LOW DROP VOLTAGE REGULATORS
Figure 1: Schematic Diagram For Adjustable Version

Rev. 7
LD29150 SERIES
2/17
Figure 2: Schematic Diagram For Fixed Version

* Only for version with inhibit function.
Table 1: Ordering Codes

(*) Available in Tape & Reel with the suffix "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.
LD29150 SERIES
3/17
Table 3: Thermal Data
Figure 3: Pin Connection (top view)

* Not connected for fixed version.
Figure 4: Application Circuit

* Only for version with inhibit function.
LD29150 SERIES
4/17
Table 4: Electrical Characteristics Of LD29150#15
O = 10mA, TJ = 25°C, VI = 3.5V, VINH = 2V (Note 2), CI = 330nF, CO = 10μF, unless otherwise specified)
NOTE 1: Guaranteed by design.
NOTE 2: Only for version with Inhibit function.
Table 5: Electrical Characteristics Of LD29150#18
O = 10mA, TJ = 25°C, VI = 3.8V, VINH = 2V (Note 3), 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: Only for version with Inhibit function.
LD29150 SERIES
5/17
Table 6: Electrical Characteristics Of LD29150#25
O = 10mA, TJ = 25°C, VI = 4.5V, VINH = 2V (Note 3), 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: Only for version with Inhibit function.
Table 7: Electrical Characteristics Of LD29150#33
O = 10mA, TJ = 25°C, VI = 5.3V, VINH = 2V (Note 3), 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: Only for version with Inhibit function.
LD29150 SERIES
6/17
Table 8: Electrical Characteristics Of LD29150#50
O = 10mA, TJ = 25°C, VI = 7V, VINH = 2V (Note 3), 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: Only for version with Inhibit function.
Table 9: Electrical Characteristics Of LD29150#80
O = 10mA, TJ = 25°C, VI = 10V, VINH = 2V (Note 3), 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: Only for version with Inhibit function.
LD29150 SERIES
7/17
Table 10: Electrical Characteristics Of LD29150#ADJ
O = 10mA, TJ = 25°C, VI = 3.23 V, VINH = 2V (Note 3), CI = 330nF, CO = 10μF adjust pin tied to output
pin)
NOTE 1: Guaranteed by design.
NOTE 2: reference Voltage is measured between output and GND pin, with ADJ PIN tied to VOUT.
NOTE 3: Only for version with Inhibit function.
TYPICAL CHARACTERISTICS
Figure 5: Output Voltage vs Temperature
Figure 6: Reference Voltage vs Temperature
LD29150 SERIES
8/17
Figure 7: Dropout Voltage vs Temperature

Figure 8: Dropout Voltage vs Output Current

Figure 9: Quiescent Current vs Output Current

Figure 10: Quiescent Current vs Output Current

Figure 11: Quiescent Current vs Supply Voltage

Figure 12: Quiescent Current vs Temperature

LD29150 SERIES
9/17
Figure 13: Quiescent Current vs Temperature

Figure 14: Short Circuit Current vs Temperature

Figure 15: Adjust Pin Current vs Temperature
Figure 16: Supply Voltage Rejection vs

Temperature
Figure 17: Output Voltage vs Input Voltage
Figure 18: Stability vs CO

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