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Key Specifications
Part Number Description Status SubFamily Regulated Outputs(.) Output Options Iout (Max)(mA) Vin (Min)(V) Vin (Max)(V) Fixed Output Options(V) Vout (Min)(V) Vout (Max)(V) Enable Under Voltage Lockout Pin/Package EV Kit Available?
UM1750Y-00 350mA, Micropower, Very Low Dropout Linear Regulator ACTIVE Single Channel ≤350mA Output Current LDO 1 Adjustable Output 350 2.5 6 1 5 Yes Yes 5/SOT89
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Product Description
 
The UM1650/UM1750 series are very low dropout linear regulators designed for low power portable applications. Typical output noise is only 195μVRMS and maximum dropout is just 110mV(Typ) at the load current of 150mA.The internal P-channel MOSFET pass transistor requires no base current, allowing the device to draw only 190μA during normal operation at the maximum load current of 350mA.With a shutdown control pin, the UM1750 consumes less than 1μA current in shutdown mode.
Other features include high output voltage accuracy, excellent transient response, under voltage lockout, stability with ultralow ESR ceramic capacitors as small as 1μF, short-circuit and thermal overload protection and output current limiting.
The UM1650 series are available in a low profile SOT23-3 package. The UM1750 series are available in low profile SOT23-5, SOT89-5 and DFN6 2.0×2.0 packages.
 
Features
 
- Very Low Dropout: 150mV (Max) at 150mA
- Maximum Input Voltage: 6.0V
- ±2% Voltage Accuracy at VOUT>1.5V
  ±30mV Voltage Accuracy at VOUT≤1.5V
- Fast Transient Response
- Under Voltage Lockout
- Fixed Output Voltage of UM1650S-xx and UM1750S/Y/DA-xx from 1.0V to 4.0V with 0.1V Interval
- Adjustable Output Voltage of UM1750S/Y/DA-00 from 1.0V to 5.0V
- Output Current Limit
- Stable with 1μF Output Capacitor
- Short-Circuit and Thermal Overload Protection
- Low Profile SOT23-3, SOT23-5, SOT89-5 and DFN6 2.0×2.0 Packages
 
Typical Application Circuit


                              UM1750S-00/UM1750Y-00/UM1750DA-00 (Adjustable VOUT)
                                                     Typical Application Circuit
 
 
Applications
 
- Bluetooth/802.11 Cards
- PDAs and Notebook Computers
- Portable Instruments and Battery-Powered Systems
- Cellular Phones
 
Pin Configurations  
 

                      UM1750Y-00
 
Naming Information
 
 
Ordering Information
 
Part Number
Output Voltage
Packaging Type
Marking Code
Shipping Qty
UM1750Y-00
ADJ
SOT89-5
1750-00
1000pcs/7Inch
Tape & Reel
 
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