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NR302A Datasheet Preview

NR302A Datasheet

Linear Regulator

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IO = 1 A, VIN = 27 V Linear Regulator IC
NR301E, NR302A
Data Sheet
Description
NR301E and NR302A are linear regulator ICs whose
maximum output current is 1 A. Output voltage is
adjusted by external resistors. The IC uses the 8 pin
surface mount package with exposed thermal pad.
The IC has various functions including the Output
On/Off Function, the Overcurrent Protection and the
Thermal Shutdown, and achieves a linear regulator
circuit with few external components. In addition, stable
output voltage with ceramic capacitor reduces the
mounting area compared to using electrolytic capacitors.
Features
Reducing Mounting Area
Stable with a Ceramic Output Capacitor
Adjustable Output Voltage (VOUT = 1.1 V to 16 V)
Output On/Off Function
Protections:
Overcurrent Protection (OCP): Fold-back
Thermal Shutdown (TSD) with Hysteresis: Auto-
restart
Typical Application
NR301E
NR302A
VC
5
NC 4
6 NC
GND
3
VIN
7 NC
ADJ 2
8 VIN
VO 1
CIN
D1
VOUT
R1
COUT
R2
Packages
NR301E: eSOIC8
NR302A: HSOP8
Not to scale
Specifications
Recomended Input Voltage, VIN: 2.7 V to 27 V
Voltage Reference, VADJ: 1.0 V ± 1.5%
Output Current, IO: 1.0 A
Typical Dropout Voltage, VDIF: 0.6 V
Applications
Audio Visual Equipment
Office Automation Equipment
White Goods
NR301E, NR302A-DSE Rev.2.0
SANKEN ELECTRIC CO., LTD
1
Apr. 03, 2017
http://www.sanken-ele.co.jp/en
© SANKEN ELECTRIC CO., LTD. 2015




SANKEN

NR302A Datasheet Preview

NR302A Datasheet

Linear Regulator

No Preview Available !

NR301E, NR302A
Contents
Description ------------------------------------------------------------------------------------------------------ 1
Contents --------------------------------------------------------------------------------------------------------- 2
1. Absolute Maximum Ratings----------------------------------------------------------------------------- 3
2. Recommended Operating Range----------------------------------------------------------------------- 3
3. Electrical Characteristics -------------------------------------------------------------------------------- 4
4. Thermal Resistance Characteristics ------------------------------------------------------------------- 4
5. Performance Curves -------------------------------------------------------------------------------------- 5
6. Derating Curve -------------------------------------------------------------------------------------------- 6
7. Block Diagram --------------------------------------------------------------------------------------------- 7
8. Pin Configuration Definitions--------------------------------------------------------------------------- 7
9. Typical Application --------------------------------------------------------------------------------------- 8
10. Physical Dimensions -------------------------------------------------------------------------------------- 9
10.1. Land Pattern Example --------------------------------------------------------------------------- 10
11. Marking Diagram --------------------------------------------------------------------------------------- 10
12. Operational Description ------------------------------------------------------------------------------- 11
12.1. Constant Voltage Control------------------------------------------------------------------------ 11
12.2. Output Voltage Setting --------------------------------------------------------------------------- 11
12.3. Overcurrent Protection (OCP) ----------------------------------------------------------------- 11
12.4. TSD (Thermal Shutdown Protection) --------------------------------------------------------- 11
12.5. Output On/Off Function ------------------------------------------------------------------------- 12
13. Design Notes ---------------------------------------------------------------------------------------------- 12
13.1. Input and Output Capacitor -------------------------------------------------------------------- 12
13.2. Protection Diode for Reverse Biasing --------------------------------------------------------- 12
13.3. Considerations in Circuit Configuration ----------------------------------------------------- 13
14. Pattern Layout Example ------------------------------------------------------------------------------- 13
Important Notes---------------------------------------------------------------------------------------------- 14
NR301E, NR302A-DSE Rev.2.0
SANKEN ELECTRIC CO., LTD
2
Apr. 03, 2017
http://www.sanken-ele.co.jp/en
© SANKEN ELECTRIC CO., LTD. 2015


Part Number NR302A
Description Linear Regulator
Maker SANKEN
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