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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?
UM1550DA Ultra Low Quiescent Current Linear Regulator ACTIVE Ultra Low Quiescent Current LDO 1 Fixed Output 300 1.8 8 1.2 5 No No 6/DFN 2.0×2.0 Y
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Product Description
 
The UM1550/1560 series is a set of high input voltage low quiescent current regulator implemented in CMOS technology. They can deliver 300mA output current and allow an input voltage as high as 8V. They are available with several fixed output voltages ranging from 1.2V to 5.0V. CMOS technology ensures low voltage drop and low quiescent current.
The UM1550 is available in SOT23-3, SOT89-3, DFN6 2.0×2.0 and DFN4 1.0×1.0 packages. The UM1560 is available in SOT23-5, SOT343, DFN6 2.0×2.0 and DFN4 1.0×1.0 packages.
 
Features
 
- Input Voltage Range: 1.8V to 8V
- 300mA Guaranteed Output Current
- Low Dropout Voltage:
  250mV (Typical) at 200mA
- Low Quiescent Current:
  2.5µA@VIN=8V (Typical)
- Low Noise: 115µVRMS (10Hz to 100kHz)
- Available Fixed Output Voltage from 1.2V to 5.0V with 0.1V Step
- With Shutdown Control (UM1560)
- Output Current Limit
- Low Profile SOT23-3, SOT23-5, SOT89-3, SOT343, DFN6 2.0×2.0 and DFN4 1.0×1.0 Packages
 
Typical Application Circuit

 
 
Applications
 
- Communication Equipments
- Audio/Video Equipments
- Portable Games
- Portable AV Equipments
- Battery-Powered Equipments
 
Pin Configurations  
 
                         (Top View)

               
                        UM1550DA

Naming Information
 


Ordering Information

Part Number
Output Voltage
Packaging Type
Marking Code
Shipping Qty
UM1550DA-12
1.2V
DFN6 2.0×2.0
AH2
3000pcs/7Inch
Tape & Reel
UM1550DA-13
1.3V
AH3
UM1550DA-14
1.4V
AH4
UM1550DA-15
1.5V
AH5
UM1550DA-16
1.6V
AH6
UM1550DA-17
1.7V
AH7
UM1550DA-18
1.8V
AH8
UM1550DA-19
1.9V
AH9
UM1550DA-20
2.0V
AHA
UM1550DA-21
2.1V
AHB
UM1550DA-22
2.2V
AHC
UM1550DA-23
2.3V
AHD
UM1550DA-24
2.4V
AHE
UM1550DA-25
2.5V
AHF
UM1550DA-26
2.6V
AHG
UM1550DA-27
2.7V
AHH
UM1550DA-28
2.8V
AHJ
UM1550DA-29
2.9V
AHK
UM1550DA-30
3.0V
AHL
UM1550DA-31
3.1V
AHN
UM1550DA-32
3.2V
AHP
UM1550DA-33
3.3V
AHQ
UM1550DA-34
3.4V
AHR
UM1550DA-35
3.5V
AHS
UM1550DA-36
3.6V
AHT
UM1550DA-37
3.7V
AHU
UM1550DA-38
3.8V
AHV
UM1550DA-39
3.9V
AHZ
UM1550DA-40
4.0V
AJA
UM1550DA-41
4.1V
AJB
UM1550DA-42
4.2V
AJ2
UM1550DA-43
4.3V
AJ3
UM1550DA-44
4.4V
AJ4
UM1550DA-45
4.5V
AJ5
UM1550DA-46
4.6V
AJ6
UM1550DA-47
4.7V
AJ7
UM1550DA-48
4.8V
AJ8
UM1550DA-49
4.9V
AJ9
UM1550DA-50
5.0V
AJC
 
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