NSR330, NSR331, NSR332 series
40-V, 300-mA, Low Quiescent Current,
Automotive Low-Dropout Regulator
Datasheet (EN) 1.0
Copyright © 2023, NOVOSENSE
Page 1
Product Overview
NSR330, NSR331 and NSR332 series are 300 mA low-
dropout linear regulator designed for battery-direct-
connection automotive applications. Wide supply voltage
range from 3 V to 40 V makes the series a good fit for severe
operating conditions including load dump, cold cranking
and start-stop.
With 5 μA quiescent current at light loads, NSR330, NSR331
and NSR332 series are quite suitable for always-on
automotive applications where standby power
consumption is strictly restricted.
With integrated compensation implementation, NSR330,
NSR331 and NSR332 series can be stable with low-ESR (1
mΩ to 3 Ω) ceramic output capacitor, ranging from 1 μF to
200 μF.
The device features integrated short-circuit-to-GND and
thermal shutdown protections. This device operates in
ambient temperatures from –40 °C to 125 °C.
Key Features
AEC-Q100 Qualified (Grade 1) for Automotive Applications
3 V to 40 V Wide Supply Voltage Range
Output Current Range: Up to 300 mA
Low Quiescent Current:
200 nA (Typ.) Shutdown Current when EN low
5 μA (Typ.) at No Loads
Low Dropout Voltage: 320 mV at 300 mA Load / 5 V Vout
Low ESR Ceramic Output Stability Capacitor (1 μF – 200 μF)
Integrated Power-On-Reset with Adjustable Delay Time
(NSR331 series Only)
Integrated Fault Protection:
Short-Circuit-to-GND protection
Thermal Shutdown
RoHs & REACH compliance
Applications
Infotainment
Power Train
Cluster
Body Control Module
Battery Connected Always-On System
Device Information
Part Number
Version Info
Package
NSR33001-Q1 Adjustable output HMSOP8
NSR330XX-Q1
XX: 25/33/50
– 2.5 V / 3.3 V / 5 V fixed
HMSOP8
NSR33101-Q1 PG/DLY, Adjustable output HMSOP8
NSR331XX-Q1
PG/DLY, XX: 25/33/50
– 2.5 V / 3.3 V / 5 V fixed
HMSOP8
NSR33201-Q1 PG, Adjustable output HSOP8
NSR332XX-Q1
PG, XX: 33/50
- 3.3 V / 5 V fixed
HSOP8
Typical Application
IN
EN
GND
FB/ N C
OUT
C
IN
C
OUT
R
1
R
2
V
BAT
V
REG
VIN
EN
GND
FB/ N C
OUT
C
IN
C
OUT
R
1
R
2
V
BAT
V
REG
C
DLY
DLY
PG
R
3
NSR330, NSR331, NSR332 series
Copyright © 2023, NOVOSENSE Page 2
Index
1. PIN CONFIGURATION AND FUNCTIONS .............................................................................................................. 3
2. ABSOLUTE MAXIMUM RATINGS ......................................................................................................................... 5
3. ESD RATINGS .................................................................................................................................................. 5
4. RECOMMENDED OPERATING CONDITIONS ......................................................................................................... 5
5. THERMAL INFORMATION.................................................................................................................................. 6
6. SPECIFICATIONS ............................................................................................................................................. 6
6.1.
ELECTRICAL CHARACTERISTICS .....................................................................................................................................................6
6.2.
TYPICAL PERFORMANCE CHARACTERISTICS.....................................................................................................................................8
7. DETAILED DESCRIPTION ................................................................................................................................ 11
7.1.
OVERVIEW ..............................................................................................................................................................................11
7.2.
BLOCK DIAGRAM ......................................................................................................................................................................11
7.3.
FEATURE DESCRIPTION .............................................................................................................................................................11
7.3.1. Input ...................................................................................................................................................................................... 12
7.3.2. Input Under-voltage Lockout (UVLO) ................................................................................................................................... 12
7.3.3. Enable (EN) ............................................................................................................................................................................ 12
7.3.4. Output and Feedback (FB) ................................................................................................................................................... 12
7.3.5. Power Good (PG) and Reset Delay Timer (DLY) ................................................................................................................... 12
7.3.6. Output Current Limit ............................................................................................................................................................ 13
7.3.7. Thermal Shutdown (TSD) ..................................................................................................................................................... 13
7.4.
TYPICAL APPLICATION ...............................................................................................................................................................13
7.4.1. Application Circuit ................................................................................................................................................................ 13
7.4.2. Input and Output Capacitor ................................................................................................................................................. 13
7.4.3. Power Dissipation and Thermal Calculations .................................................................................................................... 13
8. LAYOUT........................................................................................................................................................ 14
8.1.
LAYOUT GUIDELINES ................................................................................................................................................................14
8.2.
LAYOUT EXAMPLE ....................................................................................................................................................................14
9. PACKAGE INFORMATION ................................................................................................................................ 16
9.1.
HMSOP8 ..............................................................................................................................................................................16
9.1.1. Tape and Reel........................................................................................................................................................................ 16
9.1.2. Mechanical Data ................................................................................................................................................................... 17
9.1.3. Recommended Land Pattern ............................................................................................................................................... 18
9.2.
HSOP8 .................................................................................................................................................................................19
9.2.1. Tape and Reel........................................................................................................................................................................ 19
9.2.2. Mechanical Data ................................................................................................................................................................... 20
9.2.3. Recommended Land Pattern ............................................................................................................................................... 21
10. ORDER INFORMATION .................................................................................................................................. 22
11. REVISION HISTORY ...................................................................................................................................... 23