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NCP1596 PDF даташит

Спецификация NCP1596 изготовлена ​​​​«ON Semiconductor» и имеет функцию, называемую «1.5 MHz Current Mode PWM Buck Down Converter».

Детали детали

Номер произв NCP1596
Описание 1.5 MHz Current Mode PWM Buck Down Converter
Производители ON Semiconductor
логотип ON Semiconductor логотип 

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NCP1596 Даташит, Описание, Даташиты
NCP1596, NCP1596A
Product Preview
1.5 A, 1.5 MHz Current
Mode PWM Buck Down
Converter
The NCP1596/NCP1596A is a current mode PWM buck converter
with integrated power switch. It can provide up to 1.5 A output current
with high conversion efficiency. High frequency PWM control
scheme can provide a low output ripple noise. Thus, it allows the
usage of small size passive components to reduce the board space. In a
low load condition, the controller will automatically change to PFM
mode which provides a higher efficiency at low load. Additionally, the
device includes softstart, thermal shutdown with hysteresis,
cyclebycycle current limit, and short circuit protection. This device
is available in a compact 3x3 DFN package.
Features
High Efficiency up to 90%, 1 A @ 3.3 V, 75% @ 1.2 V
Fully Internal Compensation
Low Output Voltage Ripple, 20 mV Typical
±1.5% Reference Voltage
High PWM Switching Frequency, 1.5 MHz
Automatic PWM / PFM Switchover at Light Load
Builtin 1 ms Digital Soft Start
Cyclebycycle Current Limit
Thermal Shutdown with Hysteresis
Internal UVLO Protection
Ext. Adjustable Output Voltage
Low Profile and Minimum External Components
Designed for use with Ceramic Capacitor
Compact 3x3 DFN Package
These are PbFree Devices
Typical Applications
Hard Disk Drives
USB Power Device
Wireless and DSL Modems
http://onsemi.com
1
6 PIN DFN 3x3
MN SUFFIX
CASE 506AH
MARKING DIAGRAMS
1 N1596
ALYW
G
1 1596A
ALYW
G
N1596/1596A = Specific Device Code
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = PbFree Package
PIN CONNECTIONS
FB
GND
LX
1596
NC
VCC
VCCP
FB
GND
LX
(Top View)
EN
VCC
VCCP
1596A
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
This document contains information on a product under development. ON Semiconductor
reserves the right to change or discontinue this product without notice.
© Semiconductor Components Industries, LLC, 2009
March, 2009 Rev. P3
1
Publication Order Number:
NCP1596/D









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NCP1596 Даташит, Описание, Даташиты
NCP1596, NCP1596A
VIN = 4.0 V to 5.5 V
C1
VCCP
NCP1596
VCC
NC/EN GND
LX
FB
L1 VOUT = 0.8 V to 0.9 x VIN
D1 R1
R2
C2
Figure 1. Typical Operating Circuit
ABSOLUTE MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Power Supply (Pins 4, 5)
VIN 6.0
0.3 (DC)
1.0 (100 ns)
V
Input / Output Pins
Pins 1, 3, 6
VIO 6.0
0.3 (DC)
1.0 (100 ns)
V
Thermal Characteristics
3x3 DFN Plastic Package
Maximum Power Dissipation @ TA = 25°C
Thermal Resistance JunctiontoAir
Operating Junction Temperature Range (Note 4)
Operating Ambient Temperature Range
Storage Temperature Range
Lead Temperature Soldering (10 sec)
PD
RqJA
TJ
TA
Tstg
1450
68.5
40 to +150
40 to +85
55 to +150
230
mW
°C/W
°C
°C
°C
°C
Moisture Sensitivity Level (Note 3)
1.0
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
NOTE: ESD data available upon request.
1. This device series contains ESD protection and exceeds the following tests:
Human Body Model (HBM) 2.0 kV per JEDEC standard: JESD22A114.
Machine Model (MM) 200 V per JEDEC standard: JESD22A115.
2. Latchup Current Maximum Rating: 150 mA per JEDEC standard: JESD78.
3. Moisture Sensitivity Level (MSL): 1 per IPC/JEDEC standard: JSTD020A.
4. The maximum package power dissipation limit must not be exceeded.
PD
+
TJ(max) *
RqJA
TA
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NCP1596 Даташит, Описание, Даташиты
NCP1596, NCP1596A
ELECTRICAL CHARACTERISTICS
(VIN = 5.0 V, VOUT = 1.2 V, TA = 25°C for typical value, 40°C TA 85°C for min/max values unless otherwise noted)
Characteristic
Symbol
Min
Typ
Max
Operating Voltage
Under Voltage Lockout Threshold
Under Voltage Lockout hysteresis
PFET Leakage Current (Pins 5, 4)
TA = 25°C
TA = 40°C to 85°C
FEEDBACK VOLTAGE
VIN
VUVLO
VUVLO_HYS
ILEAKP
4.0
3.2
3.5
180
1.0
5.5
3.8
10
15
FB Input Threshold (TA = 40°C to 85°C)
FB Input Current
THERMAL SHUTDOWN
VFB
0.788
0.800
0.812
IFB 10 100
Thermal Shutdown Threshold (Note 5)
Hysteresis
PWM SMPS MODE
TSHDN
TSDHYS
160
30
Switching Frequency (TA = 40°C to 85°C)
FOSC 1.27 1.5 1.725
Internal PFET ONResitance (ILX = 100 mA, VIN = 5.0 V, TA = 25°C) (Note 5) RDS(on)_P
0.2
0.3
Minimum Duty Cycle
DMIN
0
Maximum Duty Cycle
DMAX
100
SoftStart Time (VIN = 5.0 V, Vo = 1.2 V, ILOAD = 0 mA, TA = 25°C)
TSS 0.8 1.0 1.2
Main PFET Switch Current Limit (Note 5)
ILIM 2.0 2.5
ENABLE NCP1596A
Enable Threshold High (NCP1596A Only)
Enable Threshold Low
Enable bias current (EN = 0 V)
EFFICIENCY
VEN_H
1.8
VEN_L
0.4
IEN 500 TBD
Output Load Current 10 mA @ 1.2 V (Note 5)
h
50
Output Load Current 100 mA to 1.2 A @ 1.2 V (Note 5)
h
70
TOTAL DEVICE
Quiescent Current Into VCCP (VIN = 5 V, VFB = 1.0 V, TA = 25°C)
Quiescent Current Into VCC (VIN = 5 V, VFB = 1.0 V, TA = 25°C)
Shutdown Quiescent Current into VCC and VCCP (NCP1596A Only)
(EN = 0, VIN = 5 V, VFB = 1.0 V, TA = 25°C)
5. Values are design guaranteed.
ICCP 10
ICC
500
ICC_SD
1.0
3.0
Unit
V
V
mV
mA
V
nA
°C
°C
MHz
Ohm
%
%
ms
A
V
V
nA
%
%
mA
mA
mA
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