OMNIREL OM9552SP, OM9554SP, OM9553SP, OM9551SP Datasheet
OM9551SP, OM9552SP, OM9553SP, OM9554SP
5V Input,
3A Output Current
+3.3V, +2.5V +1.8V, +1.5V Output
Switching Regulator
Three Terminal Package
FEATURES
•
High Efficiency
•
Internal Short Circuit Protection
•
Small Footprint
•
High Power Density- 60W/in.3
DESCRIPTION
The OM955X series of Switching Regulators are designed for pin compatibility with standard 3Pin linear regulators. They are well suited for on-board, non- isolated power applications where
efficient point- of- load regulation is needed. The package is designed using Chip- on – Board
technology to reduce cost and maintain power density. These units will typically not require any
additional components in your application due to capacitance provided internal to the package.
APPLICATIONS
•
•
•
•
•
High Power 5V to 3.3V Regulation
Low Voltage Battery regulation
Embedded Processor Power
General Purpose Low Voltage Logic
Supply
FPGA Power
Rev A
08/01/2000
MAXIMUM RATINGS @ Ta=25° C (unless otherwise specified)
Parameter
Input Voltage 8V
Output Current 4A Short Circuit
Power Dissipation 1.8W Short Circuit
Output Power 10W Short Circuit
Lead Temp.
Value
230°C
Conditions
< 1 min.
CONFIGURATION CHART
MODEL OUTPUT
VOLTAGE
OM9551SP 3.3V
OM9552SP 2.5V
OM9553SP 1.8V
OM9554SP 1.5V
TEMPERATURE RANGE MAX. OUTPUT
CURRENT
-25 to +85
-25 to +85
-25 to +85
-25 to +85
°°°°
C
°°°°
C
°°°°
C
°°°°
C
3.0A
3.0A
3.0A
3.0A
1
205 Crawford Street • Leominster M A 01453 • Phone: 978 534 5776 • Fax: 978 537 4246 • www.omnirel. com
OM9551SP, OM9552SP, OM9553SP, OM9554SP
PERFORMANCE CHARACTERISTICS (Ta= 25
°°°°
C)
INPUT
Parameter Symbol Test Conditions MIN MAX Units
Line Regulation Rline
Input Voltage
Vin 4.5 7.0 V
4.5V
Vin
≤≤≤≤
5.5V
≤≤≤≤
-0.5 +0.5 %
Range
Input Filtering1 22 uF
OUTPUT
Parameter Symbol Test Conditions MIN TYP MAX Units
Power Po Vo= 3.3V 10 W
Vout Accuracy
∆∆∆∆
Vo
Vo= 3.3V, +2.5V,
+1.5V+1.8V
0.8 1.0 %
Vout Regulation Vreg
Output Ripple
V
ηηηη
0.3 0.1
Vin= 5V, 0.1≤ Iο≤3A
Vin= 5V, Io= 3.0A 80 100 mV(p-p)
%
Current Limiting Ilim Vin= 5V 4.0 A
Efficiency
Efficiency
Efficiency
Efficiency
ηηηη
ηηηη
ηηηη
ηηηη
Vin=5V,Io=3A,Vo=+3.3V 88
Vin=5V,Io=3A,Vo=+2.5V 87
Vin=5V,Io=3A,Vo=+1.8V 86
Vin=5V,Io=3A,Vo=+1.5V 85
%
%
%
%
Min. Load Current Il(min) 0.1 A
Output Filter
Capacitance
1
Co All Models 330 uF
DYNAMIC
Parameter Test Conditions MIN TYP MAX Units
Transient
Response
Frequency
50% load step
Vout
∆∆∆∆
0 to 85
C
°°°°
40
200
S
µµµµ
mV
175 200 225 KHz
ENVIRONMENTAL
Parameter MODEL MIN MAX Units
Operating
Temperature
OM9551SP,
OM9552SP,
-25 85
C
°°°°
OM9553SP,
OM9554SP
Storage Temp. -40 125
C
°°°°
Flammability UL94V0
1
Included in the package
Rev A
08/01/2000
205 Crawford Street • Leominster M A 01453 • Phone: 978 534 5776 • Fax: 978 537 4246 • www.omnirel. com
2
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