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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?
UM1550DB Ultra Low Quiescent Current Linear Regulator ACTIVE Ultra Low Quiescent Current LDO 1 Fixed Output 300 1.8 8 1.2 5 No No 4/DFN 1.0×1.0 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)
                         
                        UM1550DB

Naming Information
 


Ordering Information

Part Number
Output Voltage
Packaging Type
Marking Code
Shipping Qty
UM1550DB-12
1.2V
DFN4 1.0×1.0
JD
10000pcs/7Inch
Tape & Reel
UM1550DB-13
1.3V
JE
UM1550DB-14
1.4V
JF
UM1550DB-15
1.5V
JG
UM1550DB-16
1.6V
JH
UM1550DB-17
1.7V
JJ
UM1550DB-18
1.8V
JK
UM1550DB-19
1.9V
JL
UM1550DB-20
2.0V
JN
UM1550DB-21
2.1V
JP
UM1550DB-22
2.2V
JQ
UM1550DB-23
2.3V
JR
UM1550DB-24
2.4V
JS
UM1550DB-25
2.5V
JT
UM1550DB-26
2.6V
JU
UM1550DB-27
2.7V
JV
UM1550DB-28
2.8V
JZ
UM1550DB-29
2.9V
KD
UM1550DB-30
3.0V
KE
UM1550DB-31
3.1V
KF
UM1550DB-32
3.2V
KG
UM1550DB-33
3.3V
KH
UM1550DB-34
3.4V
KJ
UM1550DB-35
3.5V
KK
UM1550DB-36
3.6V
KL
UM1550DB-37
3.7V
KN
UM1550DB-38
3.8V
KP
UM1550DB-39
3.9V
KQ
UM1550DB-40
4.0V
KR
UM1550DB-41
4.1V
KS
UM1550DB-42
4.2V
KT
UM1550DB-43
4.3V
KU
UM1550DB-44
4.4V
KV
UM1550DB-45
4.5V
KZ
UM1550DB-46
4.6V
ND
UM1550DB-47
4.7V
NE
UM1550DB-48
4.8V
NF
UM1550DB-49
4.9V
NG
UM1550DB-50
5.0V
NH
 
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