〇Product structure : Silicon integrated circuit 〇This product has no designed protection against radioactive rays.
.
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© 2022 ROHM Co., Ltd. All rights reserved.
www.rohm.com
TSZ22111 • 14 • 001
TSZ02201-0BDB0A400100-1-2
12.May.2022 Rev.001
For Automotive 45 V 150 mA
Fixed/Adjustable Output
Nano Cap
TM
LDO Regulators
BD9xxN1-C Series
General Description
The BD9xxN1-C series are linear regulators using the
Nano Cap
TM
topology
(Note 1)
designed as low current
consumption products for power supplies in various
automotive applications requiring a direct connection to the
battery.
These products are designed for up to 45 V as an absolute
maximum voltage and to operate until 150 mA for the
output current with low current consumption 28 μA (Typ).
These can regulate the output with a very high accuracy
±2.0 %.
The output capacitor 100 nF (Typ) or more can be used for
this product series, and it can realize a brilliant transient
characteristic even with small capacitance.
The output voltage line-up are 3.3 V, 5.0 V and Adjustable
type by an external resistive divider. The output voltage
can be adjusted between 1.0 V and 18 V by an external
resistive divider connected to the ADJ pin.
Enable feature is integrated in the devices. A logical “HIGH”
at the EN pin turns on the device, and the devices are
controlled to disable by a logical “LOW” input to the EN pin
(Note 2)
.
The devices feature the integrated Over Current Protection
to protect the device from a damage caused by a short-
circuiting or an overload. These products also integrate
Thermal Shutdown Protection to avoid the damage by
overheating and Under Voltage Lock Out to avoid false
operation at low input voltage.
Furthermore, low ESR ceramic capacitors are sufficiently
applicable for the phase compensation.
(Note 1) Nano Cap™ is a combination of technologies which allow stable
operation even if output capacitance is connected with the range of nF unit.
(Note 2) Applicable for product with Enable Function
Key Specifications
◼ Wide Temperature Range (Tj): -40 °C to +150 °C
◼ Wide Operating Input Range: 3 V to 42 V
◼ Output Voltage: 3.3 V / 5.0 V / Adjustable
◼ Low Current Consumption
(Note 3)
: 28 μA (Typ)
◼ Output Current Capability: 150 mA
◼ High Output Voltage Accuracy
(Note 4)
: ±2.0 %
(Note 3) It does not contain the current of external feedback resistance.
(Note 4) The effect of external feedback resistor is not included.
Features
◼ Nano Cap
TM
Topology
(Note 1)
◼ QuiCur
TM
Topology
(Note 5)
◼ AEC-Q100
(Note 6)
◼ Automotive grade
◼ Over Current Protection (OCP)
◼ Thermal Shutdown Protection (TSD)
◼ Under Voltage Lock Out (UVLO)
(Note 5) QuiCur
TM
is a combination of technologies that provides
high-speed load response.
(Note 6) Grade 1
Applications
◼ Automotive (Power Train, Body ECU)
◼ Car Infotainment system, etc.
Packages W (Typ) x D (Typ) x H (Max)
◼ SSOP5 2.90 mm x 2.80 mm x 1.25 mm
◼ HTSOP-J8 4.9 mm x 6.0 mm x 1.0 mm
SSOP5 HTSOP-J8
Nano Cap
TM
and QuiCur
TM
are a trademark or a registered trademark of ROHM Co., Ltd.
Datashee
t
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© 2022 ROHM Co., Ltd. All rights reserved.
www.rohm.com
TSZ22111 • 15 • 001
TSZ02201-0BDB0A400100-1-2
BD9xxN1-C Series
12.May.2022 Rev.001
Typical Application Circuits1 (Output voltage fixed type)
Components Externally Connected
Capacitor: 0.047 μF ≤ C
IN
(Min), 0.05 μF ≤ C
OUT
(Min)
(Note 1)
(Note 1) Electrolytic capacitor, tantalum capacitor and ceramic capacitors can be used.
In case of using electrolytic capacitor or ceramic capacitor with large ESR (> 500 mΩ), note that ceramic capacitor with 0.05 μF and more
must be connected near VOUT pin in parallel.
Applicable for product with Enable Function Applicable for product without Enable Function
Typical Application Circuits2 (Output voltage adjustable type)
Components Externally Connected
Capacitor: 0.047 μF ≤ C
IN
(Min), 0.05 μF ≤ C
OUT
(Min)
(Note 2)
Resistor: 5 kΩ ≤ R
1
≤ 200 kΩ
(Note 3)
V
ADJ
(Typ): 0.65 V
(Note 2) Electrolytic capacitor, tantalum capacitor and ceramic capacitors can be used.
In case of using electrolytic capacitor or ceramic capacitor with large ESR (> 500 mΩ), note that ceramic capacitor with 0.05 μF and more
must be connected near VOUT pin in parallel.
(Note 3) The value of a feedback resistor R
1
must be within this range.
R
2
value is defined by following the formula using the limitation of R
1
.
Error occurs due to the resistance value used and the ADJ terminal input current.
Applicable for product with Enable Function Applicable for product without Enable Function
VIN
VOUT
GND
C
OUT
C
IN
Output
Voltage
Input
Voltage
EN
Enable
Voltage
VIN
VOUT
GND
C
OUT
C
IN
Output
Voltage
Input
Voltage
EN
Enable
Voltage
VIN
VOUT
GND
C
OUT
C
IN
Output
Voltage
Input
Voltage
EN
Enable
Voltage
ADJ
R
2
R
1
VIN
VOUT
GND
C
OUT
C
IN
Output
Voltage
Input
Voltage
ADJ
R
2
R
1
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