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NCP6335 の電気的特性と機能

NCP6335のメーカーはON Semiconductorです、この部品の機能は「Configurable 4.0A Step Down Converter」です。


製品の詳細 ( Datasheet PDF )

部品番号 NCP6335
部品説明 Configurable 4.0A Step Down Converter
メーカ ON Semiconductor
ロゴ ON Semiconductor ロゴ 




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NCP6335 Datasheet, NCP6335 PDF,ピン配置, 機能
NCP6335
Configurable 4.0 A Step
Down Converter - Transient
Load Helper
The NCP6335 is a synchronous buck converter optimized to supply
the different sub systems of portable applications powered by one cell
Li−Ion or three cell Alkaline/NiCd/NiMH batteries. The device is able
to deliver up to 4.0 A, with programmable output voltage from 0.6 V
to 1.4 V. It can share the same output rail with another DC−to−DC
converter and works as a transient load helper. Operation at a 3 MHz
switching frequency allows the use of small components.
Synchronous rectification and automatic PWM/PFM transitions
improve overall solution efficiency. The NCP6335 is in a space
saving, low profile 2.0 x 1.6 mm CSP−20 package.
Features
Input Voltage Range from 2.3 V to 5.5 V: Battery and 5 V Rail
Powered Applications
Programmable Output Voltage: 0.6 V to 1.4 V in 6.25 mV Steps
Modular Output Stage Drive Strength for Increased Efficiency
Depending on the Output Current
3 MHz Switching Frequency with on Chip Oscillator
Uses 470 nH Inductor and 2 x 22 mF Capacitors for Optimized
Footprint and Solution Thickness
PFM/PWM Operation for Optimum Increased Efficiency
Low 35 mA Quiescent Current
I2C Control Interface with Interrupt and Dynamic Voltage Scaling
Support
Enable Pins, Power Good/Fail Signaling
Thermal protections and Temperature Management
Transient Load Helper: Share the Same Rail with Another DCDC
Small 2.0 x 1.6 mm / 0.4 mm pitch CSP Package
These are Pb−Free Devices
Typical Applications
Smartphones
Webtablets
AGND B4
Enable Control EN
Input
VSEL
A2
A1
Power Fail
Interrupt
Processor I@C
Control Interface
SDA
SCL
B3
B2
B1
A3
Core
Thermal
Protection
Operating
Output
Monitoring
I@C
DCDC
4.0 A
Modular
Driver
DCDC
3 MHz
Controller
Sense
D1 AVIN
D2 PVIN
E1
E2
4.7 uF
D3
D4
SW
E3
E4
470 nH
2x 22 uF
C1
C2 PGND
C3
C4
A4 FB
Supply Input
Processor
Core
Figure 1. Typical Application Circuit
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WLCSP20
CASE 568AG
MARKING DIAGRAM
6335x
AWLYWW
G
x = D1: Prototype
= F: 3.5 A
= D: 2.5 A (Stand−Alone)
A = Assembly Location
WL = Wafer Lot
Y = Year
WW = Work Week
G = Pb−Free Package
Pb−Free indicator, G or microdot (G),
may or may not be present
1
A VSEL
PIN OUT
23
EN SCL
4
FB
B SDA
PGND
INTB*
PGND
PG*
AGND
C PGND
PGND
PGND
PGND
D AVIN
PVIN
SW
SW
E PVIN
PVIN
SW
SW
(Top View)
*Optional
ORDERING INFORMATION
See detailed ordering and shipping information on page 29 of
this data sheet.
© Semiconductor Components Industries, LLC, 2014
April, 2014 − Rev. 5
1
Publication Order Number:
NCP6335/D

1 Page





NCP6335 pdf, ピン配列
1
A VSEL
NCP6335
23
EN SCL
4
FB
B SDA
PGND
INTB*
PGND
PG*
AGND
C PGND
PGND
PGND
PGND
D AVIN
PVIN
SW
SW
E PVIN
PVIN
SW
SW
Figure 3. Pin Out (Top View)
*Optional
PIN FUNCTION DESCRIPTION
Pin Name
Type
REFERENCE
D1
AVIN
Analog Input
B4
AGND
Analog Ground
CONTROL AND SERIAL INTERFACE
A2 EN Digital Input
A1
VSEL
Digital Input
A3 SCL
B1 SDA
B3 PGND
PG
B2 PGND
INTB
DCDC CONVERTER
D2, E1,
E2
PVIN
D3, D4,
E3, E4
C1, C2,
C3, C4
SW
PGND
Digital Input
Digital
Input/Output
Digital Output
Analog ground
Digital Output
Analog Ground
Power Input
Power Output
Power Ground
A4 FB Analog Input
Description
Analog Supply. This pin is the device analog and digital supply. Could be connected
directly to the VIN plane just next to the 4.7 mF PVIN capacitor or to a dedicated
1.0 mF ceramic capacitor.
Analog Ground. Analog and digital modules ground. Must be connected to the
system ground.
Enable Control. Active high will enable the part. There is an internal pull down
resistor on this pin.
Output voltage / Mode Selection. The level determines which of two programmable
configurations to utilize (operating mode / output voltage). There is an internal pull
down resistor on this pin; could be left open if not used.
I2C interface Clock line. There is an internal pull down resistor on this pin; could be
left open if not used
I2C interface Bi−directional Data line. There is an internal pull down resistor on this
pin; could be left open if not used
Power Good open drain output. If not used has to be connected to ground plane
Interrupt open drain output. If not used has to be connected to ground plane
Switch Supply. These pins must be decoupled to ground by a 4.7 mF ceramic
capacitor. It should be placed as close as possible to these pins. All pins must be
used with short heavy connections.
Switch Node. These pins supply drive power to the inductor. Typical application uses
0.470 mH inductor; refer to application section for more information.
All pins must be used with short heavy connections.
Switch Ground. This pin is the power ground and carries the high switching current.
High quality ground must be provided to prevent noise spikes. To avoid high−density
current flow in a limited PCB track, a local ground plane that connects all PGND pins
together is recommended. Analog and power grounds should only be connected
together in one location with a trace.
Feedback Voltage input. Must be connected to the output capacitor positive terminal
with a trace, not to a plane. This is the positive input to the error amplifier.
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3Pages


NCP6335 電子部品, 半導体
NCP6335
ELECTRICAL CHARACTERISTICS (Note 9)
Min and Max Limits apply for TA = −40°C to +85°C, AVIN = PVIN = 3.6 V and default configuration, unless otherwise specified.
Typical values are referenced to TA = + 25°C, AVIN = PVIN = 3.6 V and default configuration, unless otherwise specified.
Symbol
Parameter
Conditions
Min Typ Max
Unit
EN, VSEL
VIH
VIL
TFTR
High input voltage
Low input voltage
Digital input X Filter
EN, VSEL rising and falling
DBN_Time = 01 (Note 10)
1.05 − − V
− − 0.4 V
0.5 − 4.5 ms
IPD Digital input X Pull−Down
(input bias current)
0.05 1.00
mA
PG (Optional)
VPGL
Power Good Threshold
Falling edge as a percentage of
nominal output voltage
86 90 94 %
VPGHYS
TRT
Power Good Hysteresis
Power Good Reaction Time for
DCDC
Falling (Note 10)
Rising (Note 10)
0 3 5%
− 3.5 − ms
3.5 − 14
VPGL
Power Good low output voltage
PGLK
Power Good leakage current
VPGH
Power Good high output voltage
INTB (Optional)
IPG = 5 mA
3.6 V at PG pin when power good valid
Open drain
− 0.2 V
− 100 nA
− 5.5 V
VINTBL
VINTBH
INTBLK
I2C
INTB low output voltage
INTB high output voltage
INTB leakage current
IINT = 5 mA
Open drain
3.6 V at INTB pin when INTB valid
0 − 0.2 V
− − 5.5 V
− − 100 nA
VI2CINT
VI2CIL
VI2CIH
High level at SCL/SCA line
SCL, SDA low input voltage
SCL, SDA high input voltage
VI2COL
SDA low output voltage
FSCL
I2C clock frequency
TOTAL DEVICE
SCL, SDA pin (Note 8, 10)
SCL, SDA pin (Note 8, 10)
ISINK = 3 mA (Note 10)
(Note 10)
1.7
0.8 *
VI2CINT
5.0 V
0.5 V
−V
0.4 V
3.4 MHz
VUVLO
VUVLOH
Under Voltage Lockout
Under Voltage Lockout
Hysteresis
VIN falling
VIN rising
− − 2.3 V
60 − 200 mV
TSD Thermal Shut Down Protection
− 150 − °C
TWARNING
TPWTH
Warning Rising Edge
Pre − Warning Threshold
I2C default value
− 135 − °C
− 105 − °C
TSDH
Thermal Shut Down Hysteresis
− 30 − °C
TWARNINGH Thermal warning Hysteresis
− 15 − °C
TPWTH H Thermal pre−warning Hysteresis
− 6 − °C
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
8. Devices that use non−standard supply voltages which do not conform to the intent I2C bus system levels must relate their input levels
to the VDD voltage to which the pull−up resistors RP are connected.
9. Refer to the Application Information section of this data sheet for more details.
10. Guaranteed by design and characterized.
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