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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?
UM1550Y Ultra Low Quiescent Current Linear Regulator ACTIVE Ultra Low Quiescent Current LDO 1 Fixed Output 300 1.8 8 1.2 5 No No 3/SOT89 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  
 
               
                  UM1550Y

Naming Information
 


Ordering Information

Part Number
Output Voltage
Packaging Type
Marking Code
Shipping Qty
UM1550Y-12
1.2V
SOT89-3
CA2
1000pcs/7Inch
Tape & Reel
UM1550Y-13
1.3V
CA3
UM1550Y-14
1.4V
CA4
UM1550Y-15
1.5V
CA5
UM1550Y-16
1.6V
CA6
UM1550Y-17
1.7V
CA7
UM1550Y-18
1.8V
CA8
UM1550Y-19
1.9V
CA9
UM1550Y-20
2.0V
CAA
UM1550Y-21
2.1V
CAB
UM1550Y-22
2.2V
CB2
UM1550Y-23
2.3V
CB3
UM1550Y-24
2.4V
CB4
UM1550Y-25
2.5V
CB5
UM1550Y-26
2.6V
CB6
UM1550Y-27
2.7V
CB7
UM1550Y-28
2.8V
CB8
UM1550Y-29
2.9V
CB9
UM1550Y-30
3.0V
CBA
UM1550Y-31
3.1V
CBB
UM1550Y-32
3.2V
CC2
UM1550Y-33
3.3V
CC3
UM1550Y-34
3.4V
CC4
UM1550Y-35
3.5V
CC5
UM1550Y-36
3.6V
CC6
UM1550Y-37
3.7V
CC7
UM1550Y-38
3.8V
CC8
UM1550Y-39
3.9V
CC9
UM1550Y-40
4.0V
CCA
UM1550Y-41
4.1V
CCB
UM1550Y-42
4.2V
CD2
UM1550Y-43
4.3V
CD3
UM1550Y-44
4.4V
CD4
UM1550Y-45
4.5V
CD5
UM1550Y-46
4.6V
CD6
UM1550Y-47
4.7V
CD7
UM1550Y-48
4.8V
CD8
UM1550Y-49
4.9V
CD9
UM1550Y-50
5.0V
CDA
 
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