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PDF BD95500MUV Data sheet ( Hoja de datos )
| Número de pieza | BD95500MUV | |
| Descripción | Switching Regulator with MOSFET | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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High Performance Regulators for PCs
Switching Regulator
with MOSFET for DDR-SDRAM Cores
BD95500MUV
No.10030ECT21
●Description
BD95500MUV is a switching regulator with high output current (up to 6A) which can achieve low output voltage
(0.7V to 5.0V) from a wide input voltage range (3V to 20V). High efficiency for the switching regulator can be realized by
utilizing an internal N-MOSFET power transistor. A new technology called H3RegTM is a Rohm proprietary control method to
realize ultra high transient response against load change. SLLM (Simple Light Load Mode) technology is also integrated to
improve efficiency in light load mode, providing high efficiency over a wide load range. For protection and ease of use, the
soft start function, variable frequency function, short circuit protection function with timer latch, over voltage protection
function, and power good function are all built in. This switching regulator is specially designed for sets of various kinds.
●Features
1) Integrated low ON resistance N-MOSFET (TYP. 50mΩ)
2) H3RegTM DC/DC converter controller
3) Adjustable Simple Light Load Mode (SLLM), and forced continuous mode
4) Thermal Shut Down (TSD), Under Voltage LockOut (UVLO), Adjustable Over Current Protection (OCP),
Over Voltage Protection (OVP), Short Circuit Protection(SCP) built-in
5) Soft start function to minimize rush current during startup
6) Adjustable switching frequency (f=200KHz～1000KHz)
7) Built-in output discharge function
8) VQFN040V6060 Package
9) Tracking Function
10) Integrated boot strap diode
11) Power Good function
●Applications
Mobile PC, Desktop PC, LCD-TV, Digital Components, etc
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
1/20
2010.05 - Rev.C
1 page  
BD95500MUV
●Reference Data
VOUT
HG/LG
IOUT
Fig.13 Transient Response
(VIN=7V)
VOUT
HG/LG
IOUT
Fig.16 Transient Response
(VIN=7V)
VOUT
IL
HG/LG
VOUT
HG/LG
IOUT
Fig.14 Transient Response
(VIN=12V)
VOUT
HG/LG
IOUT
Fig.17 Transient Response
(VIN=12V)
VOUT
IL
HG/LG
Technical Note
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VOUT
HG/LG
IOUT
Fig.15 Transient Response
(VIN=19V)
VOUT
HG/LG
IOUT
Fig.18 Transient Response
(VIN=19V)
VOUT
IL
HG/LG
Fig.19 SLLM Mode
(IOUT=0A)
Fig.20 SLLM Mode
(IOUT=0.4A)
Fig.21 SLLM Mode
(IOUT=1A)
IL
HG/LG/SW
Fig.22 Continuous Mode
(Io=0A)
IL
HG/LG/SW
Fig.23 Continuous Mode
(Io=4A)
IL
HG/LG/SW
Fig.24 OCP Status
(Io=5A)
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
5/20
2010.05 - Rev.C
5 Page 
BD95500MUV
・Output Over Voltage Protection
VOUT
REF×1.2
HG
LG
Switching
・Over current protection circuit
tON
HG
tON
tMAX tON
LG
ILIMIT
IL
Technical Note
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When output rise to or above REF×1.2, output over
voltage protection is exercised, and low side FET goes
up maximum for reducing output. （LG=High, HG=Low）.
When output falls, it returns to the standard mode.
During the normal operation, when VOUT becomes less
than REF Voltage, HG becomes High during the time tON
(P9). However, when inductor current exceeds ILIMIT
threshold, HG becomes OFF.
After MAX ON TIME, HG becomes ON again if the output
voltage is lower than the specific voltage level and IL is
lower than ILIMIT level.
・Synchronous operation with external power supply
3.3V (External Power Supply)
1.5 V (BD95500 Output 1)
These power supply sequences are realized to connect
SS pin to other power supply output through the
resistance (10kΩ).
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
11/20
2010.05 - Rev.C
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet BD95500MUV.PDF ] | |
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