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BD37201NUX 数据表(PDF) 1 Page - Rohm

部件名 BD37201NUX
功能描述  Ultra Low Noise Low Dropout Regulator for Audio System
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制造商  ROHM [Rohm]
网页  http://www.rohm.com
标志 ROHM - Rohm

BD37201NUX 数据表(HTML) 1 Page - Rohm

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Datasheet
〇Product structure : Silicon monolithic integrated circuit 〇This product has no designed protection against radioactive rays
1/18
TSZ02201-0V3V0A600100-1-2
© 2016 ROHM Co., Ltd. All rights reserved.
18.Apr.2016 Rev.001
www.rohm.com
TSZ22111・14・001
Low Noise Power Supply LSI Series for Audio System
Ultra Low Noise Low Dropout Regulator for
Audio System
BD37201NUX
General Description
BD37201NUX is a low saturation series regulator of
low noise (4.72µVrms) which is most suitable to high
quality audio system. It operates at 2.7V to 5.5V and
capable of supplying a maximum load of 500mA.
BD37201NUX has a high PSRR and good input
transient fluctuation characteristic which makes it
suitable for the stabilization of DC/DC converter output,
and an ideal power supply to high precision analog
circuits such as D/A converter (DAC) or Clock
generator.
Furthermore, when BD37201NUX is placed in standby
mode, the supply current can be as small as 0µA(Typ)
which can greatly reduce power consumption.
Features
Ultra Low Noise, High PSRR
Stable at 1µF ceramic input and output capacitors
Standby Mode that is controlled by Enable pin
Dropout Voltage: 200mV (at 500mA load)
Under Voltage Lockout Protection, Current Limit
and Short Circuit Protection, Thermal Shutdown
Protection
Applications
High quality audio equipment
Power supply for D/A converter and Clock
generator
The other application which require low noise
Key Specifications
Input Voltage Range:
2.7V to 5.5V
Output Voltage Range:
1.0V to 4.5V
Output Current:
0.5A(Max)
Output Voltage Noise: 4.72µVrms(10 to 100kHz)
PSRR:
74dB(100Hz), ≥50dB(1MHz)
Input Transient Response:
≤5mV(1.0V/µs)
Standby Current:
0µA(Typ)
Operating Temperature Range:
-40°C to +85°C
Package
W(Typ) x D(Typ) x H(Max)
VSON008X2030
2.00mm x 3.00mm x 0.60mm
Typical Application Circuit
VIN
EN
BAS
BAO
GND
BC
VO
CIN
1µF
CBC
1µF
COUT
1µF
VOUT=3.35V
R1
120kΩ
R2
51kΩ
VS
Switching
Regulator
Clock
Generator
DAC
VIN=5.0V
Figure 1. Basic Application Circuit Diagram (VOUT=3.35V)
VSON008X2030


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