参数资料
型号: NCP1530DM27R2
厂商: ON Semiconductor
文件页数: 1/16页
文件大小: 0K
描述: IC REG BUCK 2.7V 0.6A MICRO8
产品变化通告: LTB Notification 03/Jan/2008
标准包装: 4,000
类型: 降压(降压)
输出类型: 固定
输出数: 1
输出电压: 2.7V
输入电压: 3.7 V ~ 5.5 V
PWM 型: 电流模式
频率 - 开关: 600kHz
电流 - 输出: 600mA
同步整流器:
工作温度: 0°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
包装: 带卷 (TR)
供应商设备封装: Micro8?
NCP1530
600 mA PWM/PFM
Step?Down Converter with
External Synchronization Pin
The NCP1530 is a PWM/PFM non?synchronous step?down
(Buck) DC?DC converter for usage in systems supplied from 1?cell
Li?ion, or 2 or more cells Alkaline/NiCd/NiMH batteries. It can
operate in Constant?Frequency PWM mode or PWM/PFM mode in
which the controller will automatically switch to PFM mode
operation at low output loads to maintain high efficiency. The
switching frequency can also be synchronized to external clock
http://onsemi.com
MARKING
DIAGRAM
between 600 kHz and 1.2 MHz. The maximum output current is up
to 600 mA. Applying an external synchronizing signal to SYN pin
can supersede the PFM operation.
The NCP1530 consumes only 47 m A (typ) of supply current
8
1
Micro8 ]
DM SUFFIX
CASE 846A
xxxx
ALYW
(V OUT = 3.0 V, no switching) and can be forced to shutdown mode by
bringing the enable input (EN) low. In shutdown mode, the regulator
is disabled and the shutdown supply current is reduced to
0.5 m A (typ). Other features include built?in undervoltage lockout,
internal thermal shutdown, an externally programmable soft?start
time and output current limit protection. The NCP1530 operates
from a maximum input voltage of 5.0 V and is available in a space
saving, low profile Micro8 ? package.
xxxx
A
L
Y
W
= Specific Device Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
Features
? Pb?Free Package is Available
? High Conversion Efficiency, up to 92% at V IN = 4.3 V,
V IN
SYN
PIN CONNECTIONS
1 8
2 7
LX
V REF
?
?
?
V OUT = 3.3 V, I OUT = 300 mA
Current?Mode PWM Control
Automatic PWM/PFM Mode for Current Saving at Low Output Loads
Internal Switching Transistor Support 600 mA Output Current
SS
GND
3
4
(Top View)
6
5
V OUT
EN
?
(V IN = 5.0 V, V OUT = 3.3 V)
High Switching Frequency (600 kHz), Support Small Size Inductor
?
?
?
?
?
?
?
?
and Capacitor, Ceramic Capacitors Can be Used
Synchronize to External Clock Signal up to 1.2 MHz
100% Duty Cycle for Maximum Utilization of the Supply Source
Programmable Soft?Start Time through External Chip Capacitor
Externally Accessible Voltage Reference
Built?In Input Undervoltage Lockout
Built?In Output Overvoltage Protection
Power Saving Shutdown Mode
Space Saving, Low Profile Micro8 Package
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 14 of this data sheet.
Typical Applications
? PDAs
? Digital Still Camera
? Cellular Phone and Radios
? Portable Test Equipment
? Portable Scanners
? Portable Audio Systems
? Semiconductor Components Industries, LLC, 2005
January, 2005 ? Rev. 4
1
Publication Order Number:
NCP1530/D
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NCP1530DM27R2G 功能描述:直流/直流开关转换器 600mA PWM/PFM Buck RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT
NCP1530DM30R2 功能描述:直流/直流开关转换器 600mA PWM/PFM Buck RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT
NCP1530DM30R2G 功能描述:直流/直流开关转换器 600mA PWM/PFM Buck RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT
NCP1530DM33R2 功能描述:直流/直流开关转换器 600mA PWM/PFM Buck RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT
NCP1530DM33R2G 功能描述:直流/直流开关转换器 600mA PWM/PFM Buck RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT