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參數(shù)資料
| 型號： | UCC1837 |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | DC/DC變換器 |
| 英文描述： | RSO-S_D(Z) Series - Econoline Regulated DC-DC Converters; Input Voltage (Vdc): 12V; Output Voltage (Vdc): 05V; Power: 1W; 2:1 and 4:1 Wide Input Voltage Ranges; 1kVDC, 2kVD & 3kVDC Isolation; UL94V-0 Package Material; Continuous Short Circuit Protectionwith Current Foldback; Low Noise; No External Capacitor needed; Efficiency to 83% |
| 中文描述： | 8引腳? - FET的線性穩(wěn)壓器控制器 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 87K |
| 代理商： | UCC1837 |
UCC1837
UCC2837
UCC3837
SLUS228A - AUGUST 1999
FEATURES
On Board Charge Pump to Drive
External N-MOSFET
Input Voltage as Low as 3V
Duty Ratio Mode Over Current
Protection
Extremely Low Dropout Voltage
Low External Parts Count
Output Voltages as Low as 1.5V
8-Pin N-FET Linear Regulator Controller
1
5
2
8
6
3
4
7
CHARGE
PUMP
CAP
LEVEL
SHIFT
1.5V REF
UVLO
TIMER
CURRENT SENSE
COMPARATOR
COMP
CT
CS
VDD
CURRENT SENSE
AMPLIFIER
+
+
VOUT
FB
GND
100mV
140mV
ERROR AMPLIFIER
BLOCK DIAGRAM
UDG-99145
DESCRIPTION
The UCC3837 Linear Regulator Controller includes all the features re-
quired for an extremely low dropout linear regulator that uses an external
N-channel MOSFET as the pass transistor. The device can operate from
input voltages as low as 3V and can provide high current levels, thus pro-
viding an efficient linear solution for custom processor voltages, bus ter-
mination voltages, and other logic level voltages below 3V. The on board
charge pump creates a gate drive voltage capable of driving an external
N-MOSFET which is optimal for low dropout voltage and high efficiency.
The wide versatility of this IC allows the user to optimize the setting of
both current limit and output voltage for applications beyond or between
standard 3-terminal linear regulator ranges.
This 8-pin controller IC features a duty ratio current limiting technique that
provides peak transient loading capability while limiting the average
power dissipation of the pass transistor during fault conditions. See the
Application Section for detailed information.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UCC1839 | RSO-S_D(Z) Series - Econoline Regulated DC-DC Converters; Input Voltage (Vdc): 12V; Output Voltage (Vdc): 05V; Power: 1W; 2:1 and 4:1 Wide Input Voltage Ranges; 1kVDC, 2kVD & 3kVDC Isolation; UL94V-0 Package Material; Continuous Short Circuit Protectionwith Current Foldback; Low Noise; No External Capacitor needed; Efficiency to 83% |
| UCC18500 | BiCMOS PFC/PWM Combination Controller |
| UCC18502 | BiCMOS PFC/PWM Combination Controller |
| UCC18503 | BiCMOS PFC/PWM Combination Controller |
| UCC28502 | BiCMOS PFC/PWM Combination Controller |
相關(guān)代理商/技術(shù)參數(shù) |
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| UCC1839 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Secondary Side Average Current Mode Controller |
| UCC1839J | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Current/Voltage-Mode SMPS Controller |
| UCC18500 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:BiCMOS PFC/PWM Combination Controller |
| UCC18501 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:BiCMOS PFC/PWM Combination Controller |
| UCC18502 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:BiCMOS PFC/PWM Combination Controller |
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