参数资料
型号: LTC1983ES6-5#TRPBF
厂商: Linear Technology
文件页数: 1/12页
文件大小: 0K
描述: IC REG SWITCHD CAP INV -5V SOT23
标准包装: 2,500
类型: 切换式电容器(充电泵),反相
输出类型: 固定
输出数: 1
输出电压: -5V
输入电压: 2.3 V ~ 5.5 V
PWM 型: Burst Mode?
频率 - 开关: 900kHz
电流 - 输出: 100mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: SOT-23-6 细型,TSOT-23-6
包装: 带卷 (TR)
供应商设备封装: TSOT-23-6
LTC1983-3/LTC1983-5
100mA Regulated
Charge-Pump Inverters
in ThinSOT
FEATURES
DESCRIPTIO
Fixed Output Voltages: –3V, –5V or Low Noise V IN
to –V IN Inverted Output
± 4% Output Voltage Accuracy
Low Quiesient Current: 25 μ A
100mA Output Current Capability
2.3V to 5.5V Operating Voltage Range
Internal 900kHz Oscillator
“Zero Current” Shutdown
Short-Circuit and Over-Temperature Protected
Low Profile (1mm) ThinSOT TM Package
The LTC ? 1983-3 and LTC1983-5 are inverting charge
pump DC/DC converters that produce negative regulated
outputs. The parts require only three tiny external capaci-
tors and can provide up to 100mA of output current. The
devices can operate in open loop mode (creating a –V IN
supply) or regulated output mode depending on the input
supply voltage and the output current.
The LTC1983-3/LTC1983-5 have many useful features for
portable applications including very low quiescent current
(25 μ A typical) and a zero current shutdown mode pro-
APPLICATIO S
■ –3V Generation in Single-Supply Systems
■ Portable Equipment
■ LCD Bias Supplies
■ GaAs FET Bias Supplies
grammed through the SHDN pin.
The LTC1983-3/LTC1983-5 are over-temperature and
short-circuit protected. The parts are available in a 6-pin
low profile (1mm) ThinSOT package.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
TYPICAL APPLICATIO
–3V at 100mA DC/DC Converter
V OUT vs I OUT
V IN
3V TO 5.5V
V IN
V OUT
V OUT = –3V
I OUT = UP TO 100mA
–3.3
C IN
10 μ F
LTC1983-3
C OUT
10 μ F
–3.2
OFF ON
SHDN
GND
–3.1
C +
C FLY
1 μ F
C –
1983-3 TA01
–3.0
–2.9
–2.8
V IN = 5V
V IN = 3.3 V
C FLY : TAIYO YUDEN LMK212BJ105
C IN , C OUT : TAIYO YUDEN JMK316BJ106ML
–2.7
0
20
40 60
80
100
I OUT (mA)
1983 TA02
1983fa
1
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