NN30332A Datasheet, PDF (1/43 Pages) Panasonic Semiconductor – 10 A Synchronous DC-DC Step down Regulator

Doc No. TA4-EA-06197
Revision. 3
Product Standards
NN30332A
http://www.semicon.panasonic.co.jp/en/
10 A Synchronous DC-DC Step down Regulator
with low quiescent power mode
(V_IN = 4.5 V to 24 V, V_OUT = 0.75 V to 3.6 V)
FEATURES
DESCRIPTION
 High-Speed Response DC-DC Step Down Regulator
Circuit that employs Hysteretic Control System
 Hi-side 20 m (Typ), Low-side 6 m (Typ) MOSFETs
for High efficiency at 10 A
 Low Power Mode (discontinuous) for Light Load Efficiency
 Maximum Output Current : 10 A
 Input Voltage Range : AV_IN = 4.5 V to 24 V,
PV_IN = 4.5 V to 24 V,
V₅ = 4.5 V to 5.5 V
 Output Voltage Range : 0.75 V to 3.6 V
 Selectable Switching Frequency 430 kHz / 630 kHz
 Built-in Feed Back Resistors for 1.2 V / 1.05 V Output
Voltage (Also configurable using External Resistors)
NN30332A is a synchronous DC-DC Step down
Regulator (1-ch) comprising of a Controller IC and two
power MOSFETs and employs the hysteretic control
system.
By this system, when load current changes suddenly,
it responds at high speed and minimizes the changes
of output voltage.
Since it is possible to use capacitors with small
capacitance and it is unnecessary to add external
parts for system phase compensation, this IC realizes
downsizing of set and reducing in the number of
external parts. Output voltage is adjustable by user.
Maximum current is 10 A.
APPLICATIONS
 Adjustable Soft Start
High Current Distributed Power Systems such as
 Selectable Low Operating and Standby Quiescent
Current to achieve light load efficiency
 Open Drain Power Good Indication for Output Over /
Under Voltage
 Built-in Under Voltage Lockout (UVLO),
Thermal Shut Down (TSD), Under Voltage Detection (UVD),
Over Voltage Detection (OVD), Short Circuit Protection (SCP)
Over Current Protection (OCP),
 24 pin Plastic Quad Flat Non-leaded Package Heat
Slug Down (QFN Type)
・PCs
・HDDs (Hard Disk Drives)
・SSDs (Solid State Drives)
・Game consoles
・Servers
・Security Cameras
・Network TVs
・Home Appliances
・OA Equipment etc.
(Size : 4 mm  4 mm  0.7 mm, 0.5 mm pitch)
SIMPLIFIED APPLICATION
V5
PVIN
AVIN
27 k
36 k
EN
PVIN
VOUT
AVIN
PGOOD
BST
NN30332A
VFB
V5
SS
3.3 nF
AGND
LX
PGND
100 k
0.1 µF
1 µH
V_OUT = 1.05 V
V5
22 µF  4
Note : The application circuit is an example. The operation of
the mass production set is not guaranteed. Sufficient
evaluation and verification is required in the design of
the mass production set. The Customer is fully
responsible for the incorporation of the above
illustrated application circuit in the design of the
equipment.
Established : 2013-07-29
Revised : 2014-02-18
Condition :
V_IN = 12 V, V_OUT Setting = 1.05 V,
Switching Frequency = 430 kHz, Low Power Mode / Normal Mode,
L_O = 1 µH, C_O = 88 µF (22 µF x 4) #Including V5 current
Page 1 of 42