MS10A

MS10A SERIES
Description
The MS10A brings a high current output to a surface mount package.
Using only a 1 " square footprint, it is perfect for point-of-load
applications that demand a high performance power source.
Designed for use with today's latest microprocessors, ASICs, and DSPs,
the MS10A provides superior transient response using Bourns Switch
Power's patented V2TM architecture. Output voltages are user selectable,
allowing greater flexibility in design and layout. Each high efficiency
converter includes separate control pins for output enable/disable and
output voltage trim. The MS10A output can also accept an external voltage
across its output; an advantage when power multiple input processors.
Common Specifications
Features
• Low Cost
• 10-amp Output Current
• 92 % Efficiency
• Low 0.36 " Profile
• Remote Sense
• Adjustable Vout
• Trim Function
• Short-circuit Protection with
auto-restart
• Fast Transient Response
• High-temperature Operation
• Remote Enable
• Output Precharge Capability
Input
Voltage
Current
Remote Enable
High = Disable
Low = Enable
E/D Current
Output
Current
Current Limit
Voltage Setpoint Accuracy
Line Regulation
Load Regulation
Dynamic Response
0 to 100 % load
Min
Nom
Max
Units
3.0
4.5
3.3
5
10
3.6
5.5
Vdc
Vdc
A
2.4
0.4
1
0
11
±1
±0.1
±0.2
200
17
200
20
100 to 0 % load
Patents 5,770,940
10
Temperature Regulation
General
MTBF
Operating Temperature
Storage Temperature
Switching Frequency
±2
85
125
450
350
Open = Enable
A
A
%Vnom
%Vnom
%Vnom
mV
∆i/∆t = 3 A/µs
µs
mV
∆i/∆t = 3 A/µs
µs
±0.02 %Vout/°C
553
-40
-55
Vdc
Vdc
mA
Notes
k Hrs
°C
°C
kHz
kHz
25 °C, 80 % load
5 Vin
3.3 Vin
Asia-Pacific: TEL +886- (0)2 25624117 • FAX +886- (0)2 25624116
Europe:
TEL +41-41 768 5555 • FAX +41-41 768 5510
The Americas: TEL +1-951 781 5500 • FAX +1-951 781-5700
Reliable Electronic Solutions
www.bourns.com
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
MS10A SERIES
Electrical Specifications
Nominal
Input
(V)
Output
Voltage
(V)
Output
Current
(A)
Ripple
(mV pp)
max
Efficiency
(%)
typ
3.3
5
1.0 - 2.5
1.0 - 3.5
10
10
100
100
92
92
MS10A-3SA
MS10A-5SA
1.0 (25.4)
1.0
(25.4)
7
8
9
10
MS10A
6
5
4
3
0.1 (2.54)
0.1 (2.54)
0.1 (2.54)
0.1 (2.54)
0.4 (10.16)
2
1
11
12
0.1 (2.54)
0.1 (2.54)
Top View
0.44 max
0.083 typ
1.0 (25.4)
0.080 TYP
(2.0) TYP
0.040 TYP
(1.0) TYP
1.0 (25.4)
Function
GND
Enable
- Sense
Trim
+ Sense
Vout
Vin
100 µf / 10 V
100 µf
10 V
RTrim
3 Enable
1 2 6 10
-Sense 4
RTrim = 1.24 / (Vout - 1) kΩ
USE RTrim to set Output Voltage
inches (mm)
0.xx ±0.01 inches
0.xxx ±0.005 inches
10
8
MS10A Temperature Derating
3.3Vin
Still Air (0 lfm)
Full Power to 85 °C with 100 lfm or greater
2.5 Vout
1.5 Vout
1.0 Vout
6
4
2
0.950
(24.1)
0
0
ALL DIMENSIONS ARE IN INCHES.
BOARD OUTLINE AND PADS
Max Output (A)
0.500 (12.7)
0.600 (15.2)
0.700 (17.8)
0.800 (20.3)
10
0.100 (2.54)
0
0.100 (2.54)
0.025 (.635)
L1
Pin
1,2,6,10
3
4
5
7
8,9
11,12
Vout
Vout 8
Vout 9
+Sense 7
Trim 5
11 Vin
12 Vin
Max Output (A)
Side View
Vin
8
-20 -10
0
50 60 70 80 90
Ambient Temperature (C)
MS10A Temperature Derating
5Vin
1.0 or 3.3 Vout
200 lfm
Still Air (0 lfm)
1.0 Vout
3.3 Vout
6
4
2
0
-20 -10
0
50 60 70 80 90
Ambient Temperature (C)
REV. 01/05
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.