參數(shù)資料
型號: LTC1261CS8-4
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: Switched Capacitor Regulated Voltage Inverter
中文描述: SWITCHED CAPACITOR REGULATOR, 550 kHz SWITCHING FREQ-MAX, PDSO8
封裝: PLASTIC, SO-8
文件頁數(shù): 11/16頁
文件大?。?/td> 310K
代理商: LTC1261CS8-4
11
LTC1261
able. The output voltage can be trimmed, if desired, by
connecting external resistance from the COMP pin to OUT
or ground to alter the divider ratio. As in the adjustable
parts, the absolute value of the internal resistors may vary
significantly from unit to unit. As a result, the further the
trim shifts the output voltage the less accurate the output
voltage will be. If a precise output voltage other than one
of the available fixed voltages is required, it is better to use
an adjustable LTC1261 and use precision external resis-
tors. The internal reference is trimmed at the factory to
within 3.5% of 1.24V; with 1% external resistors the
output will be within 5.5% of the nominal value, even
under worst case conditions.
The LTC1261 can be internally configured with nonstand-
ard fixed output voltages. Contact the Linear Technology
Marketing Department for details.
Table 2. Output Voltages Using the Internal Resistor Divider
PIN CONNECTIONS
ADJ to R
ADJ
ADJ to R
ADJ
, R0 to GND
ADJ to R
ADJ
, R1 to R0
ADJ to R
ADJ
, R1 to GND
ADJ to R1
ADJ to R0
ADJ to GND
OUTPUT VOLTAGE
–5V
–4.5V
–4V
–3.5V
–1.77V
–1.38V
–1.24V
There are some oddball output voltages available by
connecting ADJ to R0 or R1 and shorting out some of the
internal resistors. If one of these combinations gives you
the output voltage you want, by all means use it!
The internal resistor values are the same for the fixed
output versions of the LTC1261 as they are for the adjust-
APPLICATIO
S I
FOR
ATIO
U
W
U
U
TYPICAL APPLICATIO
S
N
U
3.3V Input, –4.5V Output GaAs FET Bias Generator
2
3
4
5
8
13
12
11
10
9
SHDN
REG
OUT
ADJ
R
ADJ
GND
C1
+
C1
C2
+
C2
R1
0.1
μ
F
100pF
1
μ
F
NC
LTC1261 TA03
3.3
μ
F
–4.5V BIAS
10k
7
6
14
0.1
μ
F
SHUTDOWN
3.3V
V
BAT
LTC1261
V
CC
R0
GaAs
TRANSMITTER
P-CHANNEL
POWER SWITCH
+
相關(guān)PDF資料
PDF描述
LTC1261CS8-4.5 Switched Capacitor Regulated Voltage Inverter
LTC1261CS8 Switched Capacitor Regulated Voltage Inverter
LTC1266-33 Synchronous Regulator Controller for N- or P-Channel MOSFETs
LTC1266 Phase-Locked Loop Systems 14-TSSOP -20 to 75
LTC1266-5 Synchronous Regulator Controller for N- or P-Channel MOSFETs
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC1261CS8-4#PBF 功能描述:IC REG SWITCHD CAP INV -4V 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:250 系列:- 類型:降壓(降壓) 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開關(guān):2MHz 電流 - 輸出:500mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:6-SON(1.45x1) 產(chǎn)品目錄頁面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2
LTC1261CS8-4#PBF 制造商:LINEAR 功能描述:CAPACITOR VOLTAGE INV, -4V, 12mA, SOIC-8
LTC1261CS8-4#TR 功能描述:IC REG SWITCHD CAP INV -4V 8SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:升壓(升壓) 輸出類型:可調(diào)式 輸出數(shù):1 輸出電壓:1.24 V ~ 30 V 輸入電壓:1.5 V ~ 12 V PWM 型:電流模式,混合 頻率 - 開關(guān):600kHz 電流 - 輸出:500mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC(0.154",3.90mm 寬) 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:8-SOIC
LTC1261CS8-4#TRPBF 功能描述:IC REG SWITCHD CAP INV -4V 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:升壓(升壓) 輸出類型:可調(diào)式 輸出數(shù):1 輸出電壓:1.24 V ~ 30 V 輸入電壓:1.5 V ~ 12 V PWM 型:電流模式,混合 頻率 - 開關(guān):600kHz 電流 - 輸出:500mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC(0.154",3.90mm 寬) 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:8-SOIC
LTC1261CS8-4.5 功能描述:IC REG SWITCHED CAP INV 8SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:升壓(升壓) 輸出類型:可調(diào)式 輸出數(shù):1 輸出電壓:1.24 V ~ 30 V 輸入電壓:1.5 V ~ 12 V PWM 型:電流模式,混合 頻率 - 開關(guān):600kHz 電流 - 輸出:500mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC(0.154",3.90mm 寬) 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:8-SOIC