BD9535MUV Datasheet PDF - ROHM Semiconductor
| Part Number | BD9535MUV | |
| Description | Switching Regulator | |
| Manufacturers | ROHM Semiconductor | |
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There is a preview and BD9535MUV download ( pdf file ) link at the bottom of this page. Total 24 Pages | ||
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High Performance Regulators for PCs
Switching Regulator
for DDR-SDRAM Cores
BD9535MUV
No.10030EBT34
●Description
BD9535MUV is a 2ch switching regulator controller with high output current which can achieve low output voltage (0.7V～
2.0V) from a wide input voltage range (4.5V～25V). High efficiency for the switching regulator can be realized by utilizing an
external N-MOSFET power transistor. A new technology called H3RegTM is a Rohm proprietary control method to realize
ultra high transient response against load change. SLLMTM (Simple Light Load Mode) technology is also integrated to
improve efficiency in light load mode, providing high efficiency over a wide load range. For the soft start/stop function,
variable frequency function, short circuit protection function with timer latch, and tracking function are all built in. This 2ch
switching regulator is specially designed for Chipset and Front Side Bus.
●Features
1) 2ch H3REGTM Switching Regulator Controller
2) Light Load Mode and Continuous Mode Changeable
3) Thermal Shut Down (TSD), Under Voltage LockOut (UVLO),
Over Current (detect the peak current) Protection (OCP), Over Voltage Protection (OVP),
Short circuit protection with built-in timer-latch
4) Soft start function to minimize rush current during startup
5) Switching Frequency Variable (f=200KHz～600kHz)
6) VQFN032V5050 package
7) Built-in Power good circuit
8) Adjustable to chip set spec by tracking function
●Applications
Laptop PC, Desktop PC, LCD-TV, Digital Components
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
1/21
2010.07 - Rev.B
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BD9535MUV
●Block Diagram
VIN
VCC
VREG SS1
Technical Note
EN1
REF1
EN2
REF2
Reference
Block
VREF
VIN
SLLM1
UVLO
2.5VReg
2.5V
BEN
SS
Soft Start/Stop Block
EN1
REF × 0.7
SS× 0.7
Is -1
Delay SCP
FS H3Reg
Controller
Block
SS
IS -1
Thermal TSD
+
+
-
UVLO
ILIM
EN2
R Q SLLM
S
SLLM1
Current Limit
ILIM
+
-
Driver
Circuit
OVP1
Protection
SCP
TSD
VCC
Reference
Block
VREF
VIN
UVLO
Is -1
POWER OVP1
Is-2 GOOD
OVP2
SLLM2
VIN
REF × 0.7
SS × 0.7
Is -2
SCP
Delay
H3Reg
Controller
Block
SS
IS-2
+
+
-
UVLO
ILIM
SCP
TSD
SS
BEN
Soft Start/StopBlock
R Q SLLM
S
ILIM
SLLM2
Current Limit
+
-
Driver
Circuit
VDD
OVP2
GND
FS
ILIM2
IS+2 IS-2
BOOT1
HG1
SW1
V DD
LG1
PGND1
CE1
Is -
Is+1
ILIM1
PGOOD1
PGOOD2
SS2
BOOT2
HG2
SW2
LG2
PGND2
CE2
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
5/21
2010.07 - Rev.B
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for BD9535MUV electronic component. |
| Information | Total 24 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ BD9535MUV.PDF Datasheet ] | |
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