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參數(shù)資料
| 型號： | RT9263CCX5 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | HIGH EFFICIENCY LOW SUPPLY CURRENT STEP UP DC/DC CONVERTER |
| 中文描述： | 高效率低電源電流升壓型DC / DC變換器 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 196K |
| 代理商： | RT9263CCX5 |
Preliminary
RT9263
DS9263-00 November 2001
www.richtek-ic.com.tw
1
High Efficiency, Low Supply Current,
Step-up DC/DC Converter
General Description
The RT9263 is a compact, high efficient, step-up
DC/DC converter with an adaptive current mode
PWM control loop, providing a stable and high
efficient operation over a wide range of load
currents. It operates in both continuous and
discontinuous current modes in stable waveforms
without external compensation.
The low start-up input voltage below 1V makes
RT9263 suitable for 1 to 4 battery cell applications
providing up to 400mA output current. The 550KHz
high switching rate minimized the size of external
components. Besides, the 17
μ
A low quiescent
current together with high efficiency maintains long
Ordering Information
RT9263
Typical Application Circuit
Features
z
1.0V Low Start-up Input Voltage
z
High Supply Capability to Deliver 3.3V 100mA
with 1V Input Voltage
z
17
μ
A Quiescent (Switch-off) Supply Current
z
90% Efficiency
z
550KHz Fixed Switching Rate
z
Providing Flexibility for Using Internal and
External Power Switches
z
SOT89-5 Package
Applications
z
PDA
z
Portable Instrument
z
DSC
Pin Configurations
Part Number
Pin Configurations
RT9263CCX5
(Plastic SOT89-5)
TOP VIEW
1. CE
2. VDD
3. FB
4. LX
5. GND
RT9263ECX5
(Plastic SOT89-5)
TOP VIEW
1. EXT
2. VDD
3. FB
4. LX
5. GND
Fig. 1 RT9263CCX5 Typical Application for Portable Instruments below 400mA
Operating temperature range
C: Commercial standard
Package type
X5 : SOT89-5
C : Chip enable control
E : Driver for external power devices
5
4
3
2
1
5
4
3
2
1
C1
100
μ
F
VDD
CE
LX
RT9263CCX5
GND FB
3.3V
V
OUT1
C2
1
μ
F
D1
1N5819
L1
4.7
μ
H
R1
1.6M
R2
980K
V
IN
100pF
100
μ
F
+
+
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| RT9263CGX5 | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:High Efficiency, Low Supply Current, Step-Up DC/DC Converter |
| RT9263CPX5 | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:High Efficiency, Low Supply Current, Step-Up DC/DC Converter |
| RT9263ECX5 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:HIGH EFFICIENCY LOW SUPPLY CURRENT STEP UP DC/DC CONVERTER |
| RT9263EGX5 | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:High Efficiency, Low Supply Current, Step-Up DC/DC Converter |
| RT9263EPX5 | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:High Efficiency, Low Supply Current, Step-Up DC/DC Converter |
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