OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

BD3506F-E2

P1-P3P4-P6P7-P9P10-P12P13-P15
1/14
www.rohm.com
2010.05 - Rev.
A
© 2010 ROHM Co., Ltd. All rights reserved.
High Performance Regulators for PCs
Nch FET Ultra LDO
for PC Chipsets
BD3506F,BD3506EFV
Description
The BD3506F/EFV is an ultra-low dropout linear regulator for chipset that can achieve ultra-low voltage input to ultra-low
voltage output. By using N-MOS FET for built-in power transistor, the regulator can be used at ultra-low I/O voltage
difference up to voltage difference generated by ON resistor (Ron = 120 m/100 m). Because by reducing the I/O voltage
difference, large current (Iomax = 2.5A) output is achieved and conversion loss can be reduced, switching power supply can
be replaced. BD3506F/EFV does not need any choke coil, diode for rectification and power transistors which are required
for switching power supply, total cost of the set can be reduced and compact size can be achieved for the set. Using
external resistors, optional output from 0.65V to 2.5V can be set. In addition, since voltage output start-up time can be
adjusted by using the NRCS terminal, it is possible to meet the power supply sequence of the set.
Features
1) Built-in high-accuracy reference voltage circuit (0.65V±1%)
2) Built-in VCC low input maloperation prevention circuit (Vcc = 4.15V)
3) Reduced rush current by NRCS
4) Built-in ultra-low on-resistor (120/100 m typ) Nch Power MOSFET (BD3506F/BD3506EFV)
5) Built-in current limiting circuit (2.5A min)
6) Built-in thermal shutdown circuit
7) Output variable type (0.65-2.5V)
8) Adoption of SOP8 package (BD3506F): 5.0 x 6.2 x 1.5 (mm)
9) Adoption of high power HTSSOP-B20 package (BD3506EFV): 5.0 x 6.4 x 1.0 (mm)
Applications
Mobile PC, desktop PC, LCD-TV, DVD, digital home appliances
●Line up
Parameter BD3506F BD3506EFV
Ron 120m 100m
Output Current 2.5A 2.5A
Package SOP8 HTSSOP-B20
●Absolute Maximum Ratings(Ta=25℃)
Parameter Symbol
Ratings
Unit
BD3506F BD3506EFV
Input Voltage1 VCC 7 *
1
7 *
1
V
Input Voltage2 VIN 7 *
1
7 *
1
V
Enable Input Voltage Ven 7 7 V
Power Dissipation1 Pd1 560 *
2
- mW
Power Dissipation2 Pd2 690 *
3
1000 *
4
mW
Operating Temperature Range Topr -10～+100 -10～+100 ℃
Storage Temperature Range Tstg -55～+125 -55～+125 ℃
Maximum Junction Temperature Tjmax +150 +150 ℃
*1 However, not exceeding Pd.
*2 In the case of Ta25°C (no heat radiation board), derated at 4.48 mW/°C.
*3 In the case of Ta25°C (when mounting to 70mmx70mmx1.6mm glass epoxy substrate), derated at 5.52 mW/°C.
*4 In the case of Ta25°C (when mounting to 70mmx70mmx1.6mm glass epoxy substrate), derated at 8.00 mW/°C.
No.10030EAT30
Technical Note
2/14
www.rohm.com
2010.05 - Rev.
A
© 2010 ROHM Co., Ltd. All rights reserved.
BD3506F,BD3506EFV
●Recommended Operating Conditions(Ta=25℃)
Parameter Symbol
Ratings
Unit
MIN MAX
Input Voltage1 VCC 4.3 5.5 V
Input Voltage2 VIN 1.2 VCC-1 *
5
V
Output Voltage Vo VFB 2.5 V
Enable Input Voltage Ven -0.3 5.5 V
Capacitor in NRCS pin CNRCS 0.001 1 µF
*5 However, irrespective of charging order of VCC and VIN.
* No radiation-resistant design is adopted for the present product.
●Electrical Characteristics (unless otherwise noted, Ta=25 VCC=5V Ven=3V VIN=1.8V R1=3.9KΩ R2=3.3KΩ)
Parameter Symbol
Limits
Unit Condition
MIN TYP MAX
Bias Current I
CC
- 0.7 1.4 mA
Bias current I
ST
- 0 10 µA Ven=0V
Shut-Down Mode Current V
OUT
- 1.200 - V Io=50mA
Output Voltage Io 2.5 - - A
Maximum Output Current Iost - 2.0 - A Vo=0V
Maximum Short Current Tcvo - 0.01 - %/℃
Temperature coefficient of Output Voltage V
FB1
0.643 0.650 0.657 V Io=50mA
Feed Back Voltage 1 V
FB2
0.630 0.650 0.670 V Io=0 to 2A, Ta=-10 to 100℃*
5
Feed Back Voltage 2 Reg.l1 - 0.1 0.5 %/V VCC=4.3V to 5.5V
Line Regulation 1 Reg.l2 - 0.1 0.5 %/V VIN=1.2V to 3.3V
Line Regulation 2 Reg.L - 0.5 10 mV Io=0 to 2A
Dropout Voltage (BD3506F) dVo - 120 200 mV Io=1A,VIN=1.2V, Ta=-10 to 100℃*
5
Dropout Voltage (BD3506EFV) dVo - 100 160 mV Io=1A,VIN=1.2V, Ta=-10 to 100℃*
5
Standby Discharge Current Iden 150 - - mA Ven=0V, Vo=1V
[Enable]
High level Enable Input Voltage Enhi 2 - 5.5 V
Low level Enable Input Voltage Enlow -0.3 - 0.8 V
Enable pin Input Current Ien - 7 10 µA Ven=3V
[Voltage Feed Back]
Feed Back terminal Bias Current I
FB
-100 0 100 nA
[NRCS]
NRCS Charge Current Inrcs 14 20 26 µA Vnrcs=0.5V
NRCS Standby Voltage V
STB
- 0 50 mV Ven=0V
[UVLO]
VCC UVLO V
CCUVLO
4.00 4.15 4.30 V Vcc:Sweep-up
VCC UVLO Hysteresis Vcchys 100 160 220 mV Vcc:Sweep-down
*5 Design Guarantee
Technical Note
3/14
www.rohm.com
2010.05 - Rev.
A
© 2010 ROHM Co., Ltd. All rights reserved.
BD3506F,BD3506EFV
●Reference Data
Fig.1 Transient Response
Fig.2 Input Voltage
SequenceFinal Input Voltage
EN
Fig.4 Input Voltage
SequenceFinal Input Voltage
VIN
Fig.5 Ta-Vfb
Fig.6 Input Voltage
SequenceFinal Input Voltage
VCC
Fig.7 Transient Response (rise)
Cout=100uF
Fig.8 Transient Response (fall)
Cout=100uF
Fig.9 VEN-IEN
Fig.10 Transient Response (rise)
Cout=220uF
Fig.11 Start up Wave Form Fig.12 Shut down Wave Form
0
2
4
6
8
10
02468
VIN(V)
IIN(uA)
646
647
648
649
650
651
652
653
654
655
656
-101030507090
Ta(
℃
)
Vfb(mV
)
0
2
4
6
8
10
12
14
16
18
012345
VEN(V)
IEN(uA)
EN
2V/DIV
NRCS
0.5V/DIV
Vo
0.5V/DIV
⊿Vout
(50mV/div)
Iout
(1A/div)
Vo
Vcc
EN
Vin
Vo
Vcc
EN
Vin
Vo
Vcc
EN
Vin
Io
1A/DIV
Vo
20mV/DIV
Io
1A/DIV
Vo
20mV/DIV
Io
1A/DIV
Vo
20mV/DIV
Fig.3 VIN-IIN(Ta=25℃)
EN
2V/DIV
NRCS
0.5V/DIV
Vo
0.5V/DIV
P1-P3P4-P6P7-P9P10-P12P13-P15

BD3506F-E2

Mfr. #:
Buy BD3506F-E2
Manufacturer:
Description:
LDO Voltage Controllers LDO REG CONTROLLER WITH INTEGRATED FET
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet