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参数资料
| 型号： | XC9128B45CAR-G |
| 厂商： | Torex Semiconductor Ltd |
| 文件页数： | 1/26页 |
| 文件大小： | 0K |
| 描述： | IC REG BST SYNC ADJ 1.2A MSOP10 |
| 标准包装： | 1,000 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.8 V ~ 5.3 V |
| 输入电压： | 0.8 V ~ 6 V |
| 频率 - 开关： | 1.2MHz |
| 电流 - 输出： | 1.2A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 10-MSOP |
| 其它名称： | XC9128B45CAR XC9128B45CAR-ND |
XC9128/XC9129 Series
ETR0411-011
1A Driver Transistor Built-In, Step-Up DC/DC Converters
☆ GreenOperation Compatible
■ GENERAL DESCRIPTION
T he XC9128/XC9129 series are synchronous step-up DC/DC converters with a 0.2 Ω (TYP.) N-channel driver transistor and a
synchronous 0.2 Ω (TYP.) P-channel switching transistor built-in. A highly efficient and stable current can be supplied up to
1.0A by reducing ON resistance of the built-in transistors. With a high switching frequency of 1.2MHz, a small inductor is
selectable making the series ideally suited for applications requiring low profile or space saving solutions. With the MODE
pin, the series provides mode selection of PWM control or PFM/PWM automatic switching control. In the PWM/PFM
automatic switching mode, the series switches from PWM to PFM to reduce switching loss when load current is small.
When load current is large, the series switches automatically to the PWM mode so that high efficiency is achievable over a
wide range of load conditions. The series also provides small output ripple from light to large loads by using the built-in
circuit which enables the smooth transition between PWM and PFM. With a adaptor enable function of the XC9128 series,
when a voltage higher than the input voltage is applied to the output, the input and the output become isolated making it
possible for the IC to work in parallel with the likes of an AC adaptor.
■ APPLICATIONS
● Digital audio equipment
■ FEATURES
High Efficiency, Large Current Step-Up Converter
Output Current : 150mA ＠ V OUT =3.3V, V IN =0.9V
● Digital still cameras / Camcorders
● Computer Mouses
● Multi-function power supplies
Input Voltage Range
Output Voltage Setting
Range
Oscillation Frequency
Input Current
Maximum Current Limit
Control
High Speed
Transient Response
Protection Circuits
Soft-Start Time
500mA ＠ V OUT =3.3V, V IN =1.8V
: 0.8V~6.0V
: 1.8V~5.3V (Externally set)
Set up freely with a reference voltage
supply of 0.45V ( ± 0.010V) & external
components
: 1.2MHz (Fixed oscillation frequency
accuracy ±15%)
: 1.0A
: 1.2A (MIN.), 2.0A (MAX.)
: PWM, PWM/PFM control
externally selectable
:100mV @ V OUT =3.3V,
V IN =1.8V, I OUT =10mA → 100mA
: Thermal shutdown
Integral latch method (Over current
limit)
: 5ms (TYP.) internally set
Ceramic Capacitor Compatible
Adaptor Enable Function (XC9128 series)
Flag Output (XC9128 series)
: Open-drain output
Operating Ambient Temperature : - 40 ℃～ +85 ℃
Packages
Environmentally Friendly
: MSOP-10, USP-10B
: EU RoHS Compliant, Pb Free
■ TYPICAL APPLICATION CIRCUIT
■ TYPICAL PERFORMANCE
CHARACTERISTICS
● Efficiency vs. Output Current
XC9128B45CD
V IN
C IN
L
EN
FO
1
2
3
4
5
PGND
Lx
BAT
EN
FO
VOUT
MODE
FB
AGND
AEN/
10
9
8
7
6
MODE
C FB
R FB1
R FB2
V OUT
C L
(ceramic)
100
90
80
70
60
L=4.7μH(LTF5022-LC),C L =30μF(LMK212BJ106KG ×3)
V O UT =3.3V,V EN =6V,V FO =OPEN,V AEN/ =0V
R FB1 =270k Ω,R FB2 =43k Ω,C FB =12pF,C IN =10μF
1.8V 3.0V
50
40
30
20
10
0
PWM/PFM (V MO DE =0V)
PWM (V MODE =V O UT )
0.1
1
10
100
1000
Output Current: I OUT (mA)
1/26
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相关代理商/技术参数 |
参数描述 |
|---|---|
| XC9128B45CDR | 制造商:Torex Semiconductor LTD 功能描述: |
| XC9128B45CDR-G | 制造商:Torex Semiconductor LTD 功能描述: |
| XC9128B45CSRN | 制造商:Torex Semiconductor LTD 功能描述: |
| XC9128D45CAR | 制造商:Torex Semiconductor LTD 功能描述:DCDC SYNCH BOOST 0.8V~ 1.2MHZ MSOP10 |
| XC9128D45CAR-G | 功能描述:IC REG BOOST SYNC ADJ 1A MSOP10 RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 类型:升压（升压） 输出类型:两者兼有 输出数:1 输出电压:5V，2 V ~ 16.5 V 输入电压:2 V ~ 16.5 V PWM 型:- 频率 - 开关:45kHz 电流 - 输出:50mA 同步整流器:无 工作温度:0°C ~ 70°C 安装类型:通孔 封装/外壳:8-DIP（0.300"，7.62mm） 包装:管件 供应商设备封装:8-PDIP |
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