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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?
UM1650S-xx 350mA, Micropower, Very Low Dropout Linear Regulator ACTIVE Single Channel ≤350mA Output Current LDO 1 Fixed Output 350 2.5 6 1 4 No Yes 3/SOT23 Y
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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
 

                         UM1650S-xx Typical Application Circuit
 
Applications
 
- Bluetooth/802.11 Cards
- PDAs and Notebook Computers
- Portable Instruments and Battery-Powered Systems
- Cellular Phones
 
Pin Configurations  

 
                          UM1650S-xx
 
Naming Information
 
 
Ordering Information
 
Part Number
Output Voltage
Packaging Type
Marking Code
Shipping Qty
UM1650S-10
1.0V
SOT23-3
6AA
3000pcs/7Inch
Tape & Reel
UM1650S-11
1.1V
6AB
UM1650S-12
1.2V
6A2
UM1650S-13
1.3V
6A3
UM1650S-14
1.4V
6A4
UM1650S-15
1.5V
6A5
UM1650S-16
1.6V
6A6
UM1650S-17
1.7V
6A7
UM1650S-18
1.8V
6A8
UM1650S-19
1.9V
6A9
UM1650S-20
2.0V
6BA
UM1650S-21
2.1V
6BB
UM1650S-22
2.2V
6B2
UM1650S-23
2.3V
6B3
UM1650S-24
2.4V
6B4
UM1650S-25
2.5V
6B5
UM1650S-26
2.6V
6B6
UM1650S-27
2.7V
6B7
UM1650S-28
2.8V
6B8
UM1650S-29
2.9V
6B9
UM1650S-30
3.0V
6CA
UM1650S-31
3.1V
6CB
UM1650S-32
3.2V
6C2
UM1650S-33
3.3V
6C3
UM1650S-34
3.4V
6C4
UM1650S-35
3.5V
6C5
UM1650S-36
3.6V
6C6
UM1650S-37
3.7V
6C7
UM1650S-38
3.8V
6C8
UM1650S-39
3.9V
6C9
UM1650S-40
4.0V
6CC
 
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