LM2991SX/NOPB National Semiconductor, LM2991SX/NOPB Datasheet - Page 8

• Manufacturer Part Number: LM2991SX/NOPB
• Description: IC REG ADJ NEG LDO TO-263-5
• Manufacturer: National Semiconductor

Specifications of LM2991SX/NOPB

• Regulator Topology: Negative Adjustable
• Voltage - Output: -3 ~ -24 V
• Voltage - Input: 0.3 ~ -26 V
• Voltage - Dropout (typical): 0.6V @ 1A
• Number Of Regulators: 1
• Current - Output: 1A
• Current - Limit (min): 1.5A
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: TO-263-5, D²Pak (5 leads + Tab), TO-263BA
• Voltage Regulator Type: Linear
• Topology: LDO
• Regulator Output Type: Adjustable
• Polarity Type: Negative
• Number Of Outputs: Single
• Input Voltage (min): -26V
• Input Voltage (max): 0.3V
• Output Voltage: -3 to -24V
• Package Type: TO-263
• Output Current: 1A
• Load Regulation: 0.4%
• Line Regulation: 0.04%/V
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Dropout Voltage@current (max): 0.2@100mA/0.8@1A
• Dropout Voltage@current (typ): 0.1@100mA/0.6@1A
• Pin Count: 5 +Tab
• Mounting: Surface Mount
• Quiescent Current (max): 5mA
• Polarity: Negative
• Input Voltage Max: 0.3 V
• Output Type: Adjustable
• Dropout Voltage (max): 0.6 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: - 40 C
• Reference Voltage: - 1.186 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *LM2991SX; *LM2991SX/NOPB; LM2991SX; LM2991SX; LM2991SXTR

Typical Applications
1126006
FIGURE 2. Fully Isolated Post-Switcher Regulator
1126010
FIGURE 3. Adjustable Current Sink
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