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PDF NCP6335G Data sheet ( Hoja de datos )
| Número de pieza | NCP6335G | |
| Descripción | Configurable 5.0A Step Down Converter | |
| Fabricantes | ON Semiconductor | |
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NCP6335G
Configurable 5.0 A Step
Down Converter - Transient
Load Helper
The NCP6335G 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 5.0 A pulse current, 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
NCP6335G 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
5.0 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
6335G
AWLYWW
G
G = 5.0 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
PINOUT DIAGRAM
123
4
A VSEL
EN
SCL
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 28 of
this data sheet.
© Semiconductor Components Industries, LLC, 2014
April, 2014 − Rev. 0
1
Publication Order Number:
NCP6335G/D
1 page  
NCP6335G
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
SUPPLY CURRENT: PINS AVIN – PVINx
IQ PWM
Operating quiescent current
PWM
DCDC active in Forced PWM
no load
− 10 20 mA
IQ PFM
Operating quiescent current
PFM
DCDC active in Auto mode
no load − minimal switching
− 35 70 mA
ISLEEP
Product sleep mode current
IOFF
Product in off mode
DCDC CONVERTER
EN high, DCDC off or
EN low and (VSEL high or
Sleep_Mode high)
VIN = 2.5 V to 5.5 V
EN, VSEL and Sleep_Mode low
VIN = 2.5 V to 5.5 V
− 7 15 mA
− 0.8 5 mA
PVIN
IOUTMAX
Input Voltage Range
Maximum Output Current
Ipeak[1..0] = 00 (Note 10)
Ipeak[1..0] = 01 (Note 10)
Ipeak[1..0] = 10 (Note 10)
2.3 − 5.5 V
3.1 − −
3.7 − −
A
4.3 − −
Ipeak[1..0] = 11 (Note 10)
5.0 − −
DVOUT
Output Voltage DC Error
Forced PWM mode, Vin range,
IOUT from 0 mA and 300 mA
−1 − 1
FSW
RONHS
RONLS
IPK
Switching Frequency
P−Channel MOSFET On
Resistance
N−Channel MOSFET On
Resistance
Peak Inductor Current
Forced PWM mode, Vin range,
IOUT up to IOUTMAX (Note 10)
Auto mode, Vin range,
IOUT up to IOUTMAX (Note 10)
From PVIN to SW
VIN = 5.0 V
From SW to PGND
VIN = 5.0 V
Open loop – Ipeak[1..0] = 00 (Note 10)
Open loop – Ipeak[1..0] = 01 (Note 10)
Open loop – Ipeak[1..0] = 10 (Note 10)
−1 − 1 %
−1 − 2
2.85 3 3.15 MHz
− 45 80 mW
− 22 40 mW
4.3
5.0
A
5.5
Open loop – Ipeak[1..0] = 11
5.8 6.4 7.0
DCLOAD
DCLINE
ACLOAD
D
Load Regulation
Line Regulation
Transient Load Response
Maximum Duty Cycle
IOUT from 300 mA to IOUTMAX
IOUT = 300 mA, 2.3 V ≤ VIN ≤ 5.5 V
tr = ts = 100ns, Load step 1.2 A (Note 10)
−
−
−
−
−0.2 − %/A
0 −%
±40 − mV
100 −
%
tSTART
Turn on time
Time from EN transitions from Low to
High to 90% of Output Voltage
(DELAY[2..0] = 000b)
Time from EN transitions from Low to
High to VOUT = 1.127 V (Note 10)
− 80 100
ms
150
RDISDCDC DCDC Active Output Discharge VOUT = 1.15 V
− 25 35 W
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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5
5 Page 
NCP6335G
TYPICAL OPERATING CHARACTERISTICS
AVIN = PVIN = 3.6 V, TJ = +25°C, DCDC = 1.15 V (Unless otherwise noted). L = 0.47 mH PIFE20161B – COUT = 2 x 22 mF 0603,
CIN = 4.7 mF 0603
Figure 28. Transient Load 0.1 – 1.6 A Auto Mode
Figure 29. Transient Load 0.1 – 1.6 A Forced PWM Mode
Figure 30. Transient Load 1.0 – 2.5 A Auto Mode
Figure 31. Transient Load 1.0 – 2.5 A Forced PWM Mode
Figure 32. Transient Load 2.0 – 3.5 A Auto Mode
Figure 33. Transient Load 2.0 – 3.5 A Forced PWM Mode
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| Páginas | Total 29 Páginas | |
| PDF Descargar | [ Datasheet NCP6335G.PDF ] | |
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