High Efficiency Non-Isolated DC-DC Converter
BST12M Series
■ Information
The BST12M series is a small, thin, highly efficient and low
noise non-isolated type step down DC-DC converter with 12V
input that has been developed for distributed feeding. Output
voltage is adjustable from 0.7525V to 5.5V and it can operate
up to 85°C of the ambient temp with a minimal derating.
■ Model/Rating
■ Features
Table 1
Line
Reg.
% (typ.)
Load
Reg.
% (typ.)
Noise
mVpp
(typ.)
Efficiency
-Small and thin type
% (typ.)
W=20.3 L=11.4 H=5.35mm
BST12M-0.7S03PDM
3.0
0.6
20
94.0
-Non-Isolated type
6.0-14.0
0.7525-5.5
0.2
BST12M-0.7S06PDM
6.0
0.6
40
94.0
-SMD
BST12M-0.7S10PDM
10.0
0.8
55
92.5
-High efficiency
Note1: Ripple noise and efficiency are when input voltage is 12V, output voltage 5V and output current
94.0%, 94.0%, 92.5%
is rated.
-Wide input voltage range
Note2: Ripple noise is measured by 20MHz bandwidth with a multi layered ceramic capacitor,
-Adjustable output voltage
47µF×2 at input, 47µF×2+1µF at output
-ON/OFF control
Note3: Depending on ambient temp conditions, cooling air flow may be required.
-Under voltage lockout
-Over current protection
-No electrolytic capacitor
-Long life, high-performance low price
-Operating temp -40°C to +85°C
(Temp derating required)
-Heatsink not required
-RoHS compliance
Model
BST12M Series
Input V
Vdc
Output V
Vdc
Output I
A
Table 2
■ Specifications
Models
Input voltage range
BST12M-0.7S03PDM
BST12M-0.7S06PDM
6.0 to 14.0V (Vout ≦3.8Vdc)
8.0 to 14.0V (Vout > 3.8Vdc)
12.0V
BST12M-0.7S10PDM
Conditions
Rated input voltage
Output voltage
anomaly
Adjustable
output
voltage range
Line regulation
Load regulation
0.7525 to 5.5V
0.7525V for the default setting
0.2% typ.
0.6% typ.
Total regulation
±2.5% max.
Ripple noise
Input voltage varying from 6.0 to 14.0V
Load varying from 0 to 100%
Inclusive of output voltage anomaly,
line, load and temp regulations
Output voltage 5V, Measurement
frequency bandwidth 20MHz
When input is rated, output voltage is
5V and output current is rated.
When input is rated, output voltage is
1V and output current is rated.
Trim pin Open ,
±1.5% (Output voltage : 0.7525V)
0.6% typ.
0.8% typ.
20mVp-p typ.
40mVp-p typ.
55mVp-p typ.
94.0% typ.
94.0% typ.
92.5% typ.
Efficiency
81.5% typ.
Over current protection
Over voltage protection
Under voltage lockout
Over current protection
Remote ON/OFF
control
Standby Current
Remote sensing
Max
output
load
capacity
Operating temp range
Humidity range
Storing temp range
80.5% typ.
76.0% typ.
Activated at 6A typ.
A hick-up mode,
Auto-recovery
No
Yes
No
Activated at 10A typ.
A hick-up mode,
Auto-recovery
Activated at 17A typ.
A hick-up mode,
Auto-recovery
Output current 0A
Vout=3.3V
Between 5 pin (On/Off) and 2 pin (GND) : Output ON when in Open, Output OFF when in Short (Refer to P.8)
2.9mA typ.
No
2.7mA typ.
2.5mA typ.
2000µF max (ESR>10mΩ), 1000µF max (ESR>1mΩ)
-40°C to +85°C (Refer to the separate temp derating chart)
20 to 85% R.H. (No condensation)
-55°C to +125°C
Before mounting a converter : 30°C/60% R.H. or lower with less than 1 year (After opening moisture-proof
Storing conditions
packaging)
Cooling conditions
A cooling air flow may be required depending on the ambient temp. Refer to the separate derating chart.
Vibrations
5-10Hz, all amplitude 10mm p-p, 5-55Hz acceleration 4m/s2 (2 hours in each of 3 orthogonal axes)
Shock
Acceleration 50m/s2 , 11m/s, Half sine Wave (3 directions, 3 times each)
Weight
2.2g typ.
2.4g typ.
2.4g typ.
Dimensions
W=20.3 L=11.4 H=5.35 typ. (mm) *For further details, please refer to Page 6.
*The above information is stated with rated value at normal temp, unless otherwise specified.
1
DC-DC Converter
BDD20090519
