NCV6357 Down Converter Datasheet

NCV6357 Datasheet, PDF, Equivalent


Part Number

NCV6357

Description

Step Down Converter

Manufacture

ON Semiconductor

Total Page 30 Pages
Datasheet
Download NCV6357 Datasheet


NCV6357
NCV6357
Step Down Converter - AOT,
Configurable
5.0 A
The NCV6357 is a synchronous AOT (Adaptive On−time) buck
converter optimized to supply the different sub systems of automotive
applications post regulation system up to 5 V input. The device is able
to deliver up to 5.0 A, with programmable output voltage from 0.6 V
to 3.3 V. Operation at up to 2.4 MHz switching frequency allows the
use of small components. Synchronous rectification and automatic
PFM Pseudo−PWM (PPWM) transitions improve overall solution
efficiency. The NCV6357 is in low profile 3.0 × 4.0 mm DFN−14
package.
Features
Input Voltage Range from 2.5 V to 5.5 V: Battery, 3.3 V and 5.0 V
Rail Powered Applications
Power Capability: 3.0 A TA = 105°C − 5.0 A TA = 85°C
Programmable Output Voltage: 0.6 V to 3.3 V in 12.5 mV Steps
Up to 2.4 MHz Switching Frequency with On Chip Oscillator
Uses 330 nH Inductor and at Least 22 mF Capacitors for Optimized
Footprint and Solution Thickness
PFM/PPWM Operation for Optimum Efficiency
Low 60 mA Quiescent Current
I2C Control Interface with Interrupt and Dynamic Voltage Scaling
Support
Enable / VSEL Pins, Power Good / Interrupt Signaling
Thermal Protections and Temperature Management
Transient Load Helper: Share the Same Rail with another Rail
3.0 × 4.0 mm / 0.5 mm Pitch DFN 14 Package
AEC−Q100 Qualified and PPAP Capable
Typical Applications
Snap Dragon
Automotive POL
Instrumentation, Clusters
Infotainment
ADAS System (Vision, Radar)
Supply Input
4.7 mF
AVIN
AGND
Enable Control EN
Input
Voltage VSEL
Selection
Power Good PG
GND
Processor I2C SDA
Control Interface GND
SCL
NCV6357
Core
Thermal
Protection
Operating
Mode
Control
DCDC
5A
Modular
Driver
Output
Monitoring
I2C
DCDC
2.4 MHz
Controller
Sense
PVIN
10 mF
SW
330 nH
2 × 22 mF
PGND
FB
Supply Input
Processor
Core
Figure 1. Typical Application Circuit
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MARKING
DIAGRAM
1
WDFNW14 4x3, 0.5P
CASE 511CM
6357
XX
AYWW
G
XX = A: 1.80 V /1.10 V
= B: 0.90 V / 1.00 V
= C: 1.80 V /1.10 V
= D: 1.25 V / 1.25 V
= F: 1.00 V / 1.10 V
A = Assembly Location
Y = Year
WW = Work Week
G = Pb−Free Package
(Note: Microdot may be in either location)
PIN CONNECTIONS
(Top View)
14− Pin 0.50 mm pitch
DFN
ORDERING INFORMATION
See detailed ordering and shipping information on page 32 of
this data sheet.
© Semiconductor Components Industries, LLC, 2018
October, 2019 − Rev. 4
1
Publication Order Number:
NCV6357/D

NCV6357
NCV6357
SUPPLY INPUT AVIN
ANALOG GROUND AGND
ENABLE CONTROL INPUT EN
VOLTAGE SELECTION VS EL
PROCESSOR I2C
CONTROL INTERFACE
PG
SCL
SDA
Core
Thermal
Protection
Output Voltage
Monitoring
Operating
Mode Control
Logic Control
Power Good
I2C
5.0 A
DC−DC
Up to 2.4 MHz
DC−DC converter
Controller
Sense
Figure 2. Simplified Block Diagram
PVIN
PVIN
POWER INPUT
SW
SW
SWITCH NODE
SW
PGND
PGND POWER GROUND
VOUT FEEDBACK
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2


Features NCV6357 Step Down Converter - AOT, Conf igurable 5.0 A The NCV6357 is a synch ronous AOT (Adaptive On−time) buck co nverter optimized to supply the differe nt sub systems of automotive applicatio ns post regulation system up to 5 V inp ut. The device is able to deliver up to 5.0 A, with programmable output voltag e from 0.6 V to 3.3 V. Operation at up to 2.4 MHz switching frequency allows t he use of small components. Synchronous rectification and automatic PFM Pseudo −PWM (PPWM) transitions improve overa ll solution efficiency. The NCV6357 is in low profile 3.0 × 4.0 mm DFN−14 p ackage. Features • Input Voltage Rang e from 2.5 V to 5.5 V: Battery, 3.3 V a nd 5.0 V Rail Powered Applications • Power Capability: 3.0 A TA = 105°C − 5.0 A TA = 85°C • Programmable Outp ut Voltage: 0.6 V to 3.3 V in 12.5 mV S teps • Up to 2.4 MHz Switching Freque ncy with On Chip Oscillator • Uses 33 0 nH Inductor and at Least 22 mF Capaci tors for Optimized Footprint and Solution Thickness • PFM/PPWM Operation for Optimum.
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