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NCP1550SN19T1 Datasheet

  • NCP1550SN19T1

  • 600 kHz PWM/PFM Step-Down DC-DC Controller

  • 18頁

  • ONSEMI

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NCP1550
600 kHz PWM/PFM
Step鈭扗own DC鈭扗C
Controller
The NCP1550 is a monolithic micropower high frequency
voltage mode step鈭抎own controller IC, specially designed for battery
operated hand鈭抙eld electronic products. With appropriate external
P鈭抰ype MOSFET, the device can provide up to 2.0 A loading
current with high conversion efficiency. The device operates in
Constant鈭扚requency PWM mode at normal operation, that ensures
low output ripple noise, and which will automatically switch to PFM
mode at low output loads for higher efficiency. Additionally,
value鈭抋dded features of Chip Enable to reduce IC Off鈭扴tate current
and integrated feedback resistor network, make it the best choice for
portable applications. The device is designed to operate for voltage
regulation with minimum external components and board space. This
device is available in a TSOP鈭? package with six standard output
voltage options.
Features
http://onsemi.com
MARKING
DIAGRAM
TSOP鈭?
SN SUFFIX
CASE 483
1
5
xxxYW
xxx = Device Code
Y
= Year
W = Work Week
鈥?/div>
Pb鈭扚ree Packages are Available
鈥?/div>
High Efficiency 92%, Typical
鈥?/div>
Low Quiescent Bias Current of 50
mA
(Typical at PFM Mode with
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
No Load)
Output Voltage Options from 1.8 V to 3.3 V with High Accuracy
$2.0%
Low Output Voltage Ripple, 50 mV, Typical
PWM Switching Frequency at 600 kHz
Automatic PWM/PFM Switchover at Light Load Condition
Very Low Dropout Operation, 100% Max. Duty Cycle
Chip Enable Pin with On鈭扖hip 150 nA Pullup Current Source
Low Shutdown Current, 0.3
mA,
Typical
Input Voltage Range from 2.45 V to 5.5 V
Built鈭抜n Soft鈭扴tart
Internal Undervoltage Lockout (UVLO) Protection
Low Profile and Minimum External Components
Micro Miniature TSOP鈭? Package
PIN CONNECTIONS
CE
GND
V
OUT
1
2
3
(Top View)
4
EXT
5
V
IN
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 16 of this data sheet.
Typical Applications
Personal Digital Assistant (PDA)
Camcorders and Digital Still Camera
Hand鈭扝eld Instrument
Distributed Power System
Computer Peripheral
Conversion from Four NiMH or NiCd or One Lithium鈭抜on Cells to
3.3 V/1.8 V
漏
Semiconductor Components Industries, LLC, 2004
1
September, 2004 鈭?Rev. 6
Publication Order Number:
NCP1550/D

NCP1550SN19T1 產(chǎn)品屬性

  • 3,000

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - DC DC 切換控制器

  • -

  • 電壓模式

  • 1

  • 690kHz

  • 100%

  • 2.45 V ~ 5.5 V

  • 是

  • 無

  • 無

  • 無

  • 無

  • 無

  • 無

  • 無

  • -40°C ~ 85°C

  • 6-TSOP（0.059"，1.50mm 寬）5 引線

  • 帶卷 (TR)

  • NCP1550SN19T1OSTR

NCP1550SN19T1相關(guān)型號PDF文件下載

  • 型號
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    廠商
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  • 英文版
    Sub 1.0 V Precision Adjustable Shunt Regulator
    ONSEMI
  • 英文版
    Sub 1.0 V Precision Adjustable Shunt Regulator
    ONSEMI [ON...
  • 英文版
    Self-Supplied Monolithic Switcher for Low Standby-Power Offl...
    ON SEMICONDUCTOR
  • 英文版
    Integrated Off-Line Switching Regulator
    ONSEMI
  • 英文版
    Integrated Off-Line Switching Regulator
    ONSEMI [ON...
  • 英文版
    Integrated Off-Line Switching Regulator
    ONSEMI
  • 英文版
    Integrated Off-Line Switching Regulator
    ONSEMI [ON...
  • 英文版
    Integrated Off-Line Switching Regulator
    ONSEMI
  • 英文版
    Integrated Off-Line Switching Regulator
    ONSEMI [ON...
  • 英文版
    Self-Supplied Monolithic Switcher for Low Standby- Power Off...
    ONSEMI
  • 英文版
    Self-Supplied Monolithic Switcher for Low Standby- Power Off...
    ONSEMI [ON...
  • 英文版
    Self-Supplied Monolithic Switcher for Low Standby- Power Off...
    ONSEMI
  • 英文版
    Self-Supplied Monolithic Switcher for Low Standby- Power Off...
    ONSEMI [ON...
  • 英文版
    Self-Supplied Monolithic Switcher for Low Standby- Power Off...
    ONSEMI
  • 英文版
    Self-Supplied Monolithic Switcher for Low Standby- Power Off...
    ONSEMI [ON...
  • 英文版
    Self-Supplied Monolithic Switcher for Low Standby- Power Off...
    ONSEMI
  • 英文版
    Self-Supplied Monolithic Switcher for Low Standby- Power Off...
    ONSEMI [ON...
  • 英文版
    Self-Supplied Monolithic Switcher for Low Standby- Power Off...
    ONSEMI
  • 英文版
    Self-Supplied Monolithic Switcher for Low Standby- Power Off...
    ONSEMI [ON...
  • 英文版
    Self-Supplied Monolithic Switcher for Low Standby- Power Off...
    ONSEMI [ON Semi...

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