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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?
UM1750DA-xx 350mA, Micropower, Very Low Dropout Linear Regulator ACTIVE Single Channel ≤350mA Output Current LDO 1 Fixed Output 350 2.5 6 1 4 Yes Yes 6/DFN 2.0×2.0 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
 

                          UM1750S-xx/UM1750Y-xx/UM1750DA-xx (Fixed VOUT)
                                                    Typical Application Circuit
 
Applications
 
- Bluetooth/802.11 Cards
- PDAs and Notebook Computers
- Portable Instruments and Battery-Powered Systems
- Cellular Phones
 
Pin Configurations  
 
                               (Top View)
 
                            UM1750DA-xx
* The tab on the bottom of the package enhances thermal performance and is electrically connected to GND (substrate level). It is recommended that the tab be connected to the ground plane on the board. If not, the tab can be left open.
 
Naming Information

 
 
Ordering Information
 
Part Number
Output Voltage
Packaging Type
Marking Code
Shipping Qty
UM1750DA-10
1.0V
DFN6 2.0×2.0
BFE
3000pcs/7Inch
Tape & Reel
UM1750DA-11
1.1V
BFF
UM1750DA-12
1.2V
BH2
UM1750DA-13
1.3V
BH3
UM1750DA-14
1.4V
BH4
UM1750DA-15
1.5V
BH5
UM1750DA-16
1.6V
BH6
UM1750DA-17
1.7V
BH7
UM1750DA-18
1.8V
BH8
UM1750DA-19
1.9V
BH9
UM1750DA-20
2.0V
BHA
UM1750DA-21
2.1V
BHB
UM1750DA-22
2.2V
BJ2
UM1750DA-23
2.3V
BJ3
UM1750DA-24
2.4V
BJ4
UM1750DA-25
2.5V
BJ5
UM1750DA-26
2.6V
BJ6
UM1750DA-27
2.7V
BJ7
UM1750DA-28
2.8V
BJ8
UM1750DA-29
2.9V
BJ9
UM1750DA-30
3.0V
BJA
UM1750DA-31
3.1V
BJB
UM1750DA-32
3.2V
BK2
UM1750DA-33
3.3V
BK3
UM1750DA-34
3.4V
BK4
UM1750DA-35
3.5V
BK5
UM1750DA-36
3.6V
BK6
UM1750DA-37
3.7V
BK7
UM1750DA-38
3.8V
BK8
UM1750DA-39
3.9V
BK9
UM1750DA-40
4.0V
BKA
 
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