Product Details
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DESCRIPTION The LT ?1129/LT1129-3.3/LT1129-5 are micropower low dropout regulators with shutdown. The devices are capable of supplying 700mA of output current with a dropout voltage of 400mV at maximum output. Designed for use in battery-powered systems, the low quiescent current, 50μA operating and 16μA in shutdown, make them an ideal choice. The quiescent current does not rise in dropout as it does with many other low dropout PNP regulators. FEATURES ■ 400mV Dropout Voltage ■ 700mA Output Current ■ 50μA Quiescent Current ■ No Protection Diodes Needed ■ Adjustable Output from 3.8V to 30V ■ 3.3V and 5V Fixed Output Voltages ■ Controlled Quiescent Current in Dropout ■ Shutdown ■ 16μA Quiescent Current in Shutdown ■ Stable with 3.3μF Output Capacitor ■ Reverse Battery Protection ■ No Reverse Output Current ■ Thermal Limiting ■ Surface Mount SOT-223 and DD-Pak Packages APPLICATIONS ■ Low Current Regulator ■ Regulator for Battery-Powered Systems ■ Post Regulator for Switching Supplies ■ 5V to 3.3V Logic Regulator |
Product Description
| TYPE | DESCRIPTION |
| ANSC PART# | ANSC- LT1129IST-3.3#PBF |
| Category | Integrated Circuits (ICs) |
| Power Management (PMIC) | |
| Voltage Regulators - Linear, Low Drop Out (LDO) Regulators | |
| Mfr | Original |
| Series | - |
| Packaging | Tube |
| Part Status | Active |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 30V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.7V @ 700mA |
| Current - Output | 700mA |
| Current - Quiescent (Iq) | 70 μA |
| Current - Supply (Max) | 90 mA |
| PSRR | 64dB (120Hz) |
| Control Features | Enable |
| Protection Features | Over Temperature, Reverse Polarity |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
| Package / Case | TO-261-4, TO-261AA |
| Supplier Device Package | SOT-223-3 |
| Base Product Number | LT1129 |
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Product datasheet
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