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參數(shù)資料
| 型號： | MC33680FTB |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Single Output LDO, 400mA, Fixed(2.85V), Low Noise, Fast Transient Response 8-MSOP -40 to 85 |
| 中文描述： | 1.15 A DUAL SWITCHING CONTROLLER, 100 kHz SWITCHING FREQ-MAX, PQFP32 |
| 封裝： | PLASTIC, LQFP-32 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大小： | 340K |
| 代理商： | MC33680FTB |
Semiconductor Components Industries, LLC, 2000
May, 2000 – Rev. 3
1
Publication Order Number:
MC33680/D
The MC33680 is a dual DC–DC regulator designed for electronic
organizer
applications.
Pulse–Frequency–Modulation (PFM). The main step–up regulator
output can be externally adjusted from 2.7V to 5V. An internal
synchronous rectifier is used to ensure high efficiency (achieve 87%).
The auxiliary regulator with a built–in power transistor can be
configured to produce a wide range of positive voltage (can be used
for LCD contrast voltage). This voltage can be adjusted from +5V to
+25V by an external potentiometer.
The MC33680 has been designed for battery powered hand–held
products. With the low start–up voltage from 1V and the low quiescent
current (typical 35
μ
A); the MC33680 is best suited to operate from 1
to 2 AA/ AAA cell. Moreover, supervisory functions such as low
battery detection, CPU Power–Good signal, and back–up battery
control, for lithium battery or supercap are also included in the chip.
Both
regulators
apply
FEATURES:
Low Input Voltage, 1V up
Low Quiescent Current in Standby Mode: 35
μ
A typical
PFM and Synchronous Rectification to ensure high efficiency
(87% @60mA Load)
Adjustable Main Output: +2.7V to +5V
nominal 3.3V @ 100mA max, with 1.8V input
Auxiliary Output Voltage: +5V to +25V
+5V @ 25mA max, with 1.8V input
+25V @ 15mA max, with 1.8V input
Current Limit Protection
Power–Good Signal with Programmable Delay
Battery Low Detection
Lithium Battery or Supercap Back–up
32–Pin LQFP Package
APPLICATIONS:
Digital Organizer and Dictionary
Dual Output Power Supply (For MPU, Logic, Memory, LCD)
Handheld Battery Powered Device (1–2 AA/AAA cell)
32–LEAD LQFP
FTB SUFFIX
CASE 873A
http://onsemi.com
PIN CONNECTIONS &
DEVICE MARKING
(Top View)
Device
Package
Shipping
ORDERING INFORMATION
MC33680FTB
LQFP
1250 Tray / Drypack
1
32
LOWBATSEN
NC
DGND
LIBATCL
LIBATON
LOWBATB
PORB
DGND
N
V
V
V
V
N
V
V
FTB
V
V
V
V
P
V
A
I
VAUXSW
VAUXEMR
LIBATIN
LIBATOUT
NC
VMAINGND
VMAINSW
VMAIN
MC33680
AWLYYWW
MC33680FTBR2
LQFP
1800 / Tape & Reel
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| MC33680FTBR2 | 功能描述:IC REG BST SYNC ADJ 0.2A 32LQFP 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:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3.3V 輸入電壓:4.5 V ~ 24 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:125mA 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:SOT-23-6 包裝:Digi-Reel® 供應(yīng)商設(shè)備封裝:SOT-6 其它名稱:MAX1836EUT33#TG16DKR |
| MC33689DDWB | 功能描述:CAN 接口集成電路 SBCLIN RoHS:否 制造商:Texas Instruments 類型:Transceivers 工作電源電壓:5 V 電源電流: 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:SOIC-8 封裝:Tube |
| MC33689DDWBR2 | 功能描述:CAN 接口集成電路 SBCLIN RoHS:否 制造商:Texas Instruments 類型:Transceivers 工作電源電壓:5 V 電源電流: 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:SOIC-8 封裝:Tube |
| MC33689DPEW | 制造商:Freescale Semiconductor 功能描述:SYSTEM BASIS CHIP W/LIN 制造商:Freescale Semiconductor 功能描述:SYSTEM BASIS CHIP W/LIN - Bulk 制造商:Freescale Semiconductor 功能描述:IC SYSTEM BASIS W/LIN 32SOIC |
| MC33689DPEWR2 | 制造商:Freescale Semiconductor 功能描述:SYSTEM BASIS CHIP W/LIN 制造商:Freescale Semiconductor 功能描述:SYSTEM BASIS CHIP W/LIN - Tape and Reel 制造商:Freescale Semiconductor 功能描述:IC SYSTEM BASIS W/LIN 32SOIC |
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