BD9139MUV Datasheet, PDF (1/17 Pages) Rohm – Output 2A or More High-efficiency Step-down Switching Regulators with Built-in Power MOSFET

Single-chip Type with Built-in FET Switching Regulator Series
Output 2A or More
High-efficiency Step-down
Switching Regulators
with Built-in Power MOSFET
BD9139MUV
No.09027EAT19
●Description
ROHM’s high efficiency step-down switching regulator BD9139MUV is a power supply designed to produce a low voltage
including 0.8 volts from 5.5/3.3 volts power supply line. Offers high efficiency with our original pulse skip control
technology and synchronous rectifier. Employs a current mode control system to provide faster transient response to
sudden change in load.
●Features
1) Offers fast transient response with current mode PWM control system.
2) Offers highly efficiency for all load range with synchronous rectifier (Nch/Nch FET) and SLLM (Simple Light Load Mode)
3) Incorporates soft-start function.
4) Incorporates thermal protection and ULVO functions.
5) Incorporates short-current protection circuit with time delay function.
6) Incorporates shutdown function Icc=0μA(Typ.)
7) Employs small surface mount package : VQFN016V3030
●Applications
Power supply for LSI including DSP, Micro computer and ASIC
●Absolute Maximum Rating (Ta=25℃)
Parameter
VCC Voltage
PVCC Voltage
Symbol
Limits
BD9139MUV
Unit
VCC
-0.3～+7 *¹
V
PVCC
-0.3～+7 *¹
V
BST Voltage
VBST
-0.3～+13
V
BST_SW Voltage
VBST-SW
-0.3～+7
V
EN Voltage
VEN
-0.3～+7
V
SW,ITH Voltage
Power Dissipation 1
Power Dissipation 2
Power Dissipation 3
Power Dissipation 4
VSW, VITH
-0.3～+7
V
Pd1
0.27 *²
W
Pd2
0.62 *³
W
Pd3
1.77 *⁴
W
Pd4
2.66 *⁵
W
Operating temperature range
Topr
-40～+105
℃
Storage temperature range
Tstg
-55～+150
℃
Maximum junction temperature
Tj
+150
℃
＊1 Pd should not be exceeded.
＊2 IC only
＊3 1-layer. mounted on a 74.2mm×74.2mm×1.6mm glass-epoxy board, occupied area by copper foil : 6.28mm²
＊4 4-layer. mounted on a 74.2mm×74.2mm×1.6mm glass-epoxy board, occupied area by copper foil : 6.28mm² , in each layers
＊5 4-layer. mounted on a 74.2mm×74.2mm×1.6mm glass-epoxy board, occupied area by copper foil : 5505mm², in each layers
●Operating Conditions (Ta=-40～+105℃)
Parameter
Symbol
BD9139MUV
Min.
Typ.
Max.
Unit
Power Supply Voltage
VCC
2.7
3.3
5.5
V
PVCC
2.7
3.3
5.5
V
EN Voltage
VEN
0
-
5.5
V
Output voltage Setting Range
VOUT
0.8
-
3.3*⁶
V
SW average output current
ISW
-
-
3.0*⁷
A
＊6 In case set output voltage 1.6V or more, VccMin = Vout+1.3V.
＊7 Pd should not be exceeded.
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2009.05 - Rev.A