Product Details
Key Features
Applications/Uses
VIN (V) (min) | 2.5 |
VIN (V) (max) | 5.5 |
Adj. VOUT (V) (min) | 1.23 |
Adj. VOUT (V) (max) | 5 |
Rated ILOAD (mA) | 150 |
Preset VOUT (V) | 1.8 2.5 3.3 |
# Regulators | 1 |
VDROPOUT @Rated ILOAD (V) (typ) | 0.3 |
ICC (µA) (max) | 50 |
Low Batt./ Pwr. Fail Out | No |
POK/Reset Thresh. (V) (nom) | Vout-10% Vout-5% |
Watchdog | No |
Reverse Batt. Protect. | No |
Oper. Temp. (°C) | 0 to +85 |
Package/Pins | SOT23/6 |
Budgetary Price (See Notes) | 1.97 |
Simplified Block Diagram
Technical Docs
Data Sheet | 150mA, SOT23, Low-Dropout Linear Regulators with Internal Microprocessor Reset Circuit | Jun 01, 2004 |
Support & Training
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Parameters
VIN (V) (min) | 2.5 |
VIN (V) (max) | 5.5 |
Adj. VOUT (V) (min) | 1.23 |
Adj. VOUT (V) (max) | 5 |
Rated ILOAD (mA) | 150 |
Preset VOUT (V) | 1.8 2.5 3.3 |
# Regulators | 1 |
VDROPOUT @Rated ILOAD (V) (typ) | 0.3 |
ICC (µA) (max) | 50 |
Low Batt./ Pwr. Fail Out | No |
POK/Reset Thresh. (V) (nom) | Vout-10% Vout-5% |
Watchdog | No |
Reverse Batt. Protect. | No |
Oper. Temp. (°C) | 0 to +85 |
Package/Pins | SOT23/6 |
Budgetary Price (See Notes) | 1.97 |
Key Features
- Preset +3.3V/+2.5V/+1.8V or Adjustable Regulator Output
- ±3.0% Regulator Accuracy Over the Specifed Operating Range
- 25µA Supply Current
- Low 180mV Dropout at 100mA Load
- Small Output Capacitor (1µF min ceramic or tantalum)
- Zero Reverse Leakage Current
- Thermal and Short-Circuit Protection
- Integrated Microprocessor Reset Circuit with 100ms (min) Timeout
- Open-Drain and Push-Pull Reset Outputs
- Regulator Shutdown Input (MAX6329) or Manual Reset Input (MAX6349)
- 6-Pin SOT23 Package
Applications/Uses
- Audio Systems
- Cordless Phones
- Electronic Planners
- Global Positioning Systems (GPS)
- Handheld Instruments (PDAs, Palmtops)
- Modems
- Palmtop Computers
- PCMCIA Cards
- USB Devices
Description
The MAX6329/MAX6349 include an internal reset circuit that indicates when the regulator output drops below standard microprocessor supply tolerances (-5% or -10%). The reset output remains asserted for 100ms (min) after the regulator output exceeds the selected reset threshold, ensuring that supply voltages and clock oscillators have stabilized before processor activity is enabled. Reset outputs are available in push-pull (active-low or -high) and open-drain (active-low) options. The internal reset circuit replaces external microprocessor supervisors or RC-based reset time delays.
The MAX6329/MAX6349 are optimized for use with a 1µF (min) output capacitor. The regulator output voltage is adjustable with an external resistor-divider network at SET (reset threshold voltages track the desired output voltage). Each device includes thermal shutdown protection, output short-circuit protection, and reverse leakage protection. The MAX6329 includes a shutdown feature to reduce regulator current below 1µA (max) and the MAX6349 offers a manual reset input to assert a microprocessor reset while the regulator output is within specification.
Technical Docs
Data Sheet | 150mA, SOT23, Low-Dropout Linear Regulators with Internal Microprocessor Reset Circuit | Jun 01, 2004 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .