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參數(shù)資料
| 型號： | TK65130MTL |
| 廠商： | ASAHI KASEI POWER DEVICES CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, 102 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封裝： | SOT-23L, SMT-6 |
| 文件頁數(shù)： | 1/20頁 |
| 文件大小： | 158K |
| 代理商： | TK65130MTL |
January 2001 TOKO, Inc.
Page 1
TK651xxM
VIN
GND
SW
LOI
VOUT
CONTROL
CIRCUIT
OSCILLATOR
Vref
UVLO
BLOCK DIAGRAM
ORDERING INFORMATION
TAPE/REEL CODE
TL: Tape Left
Tape/Reel Code
TK651xxM
VOLTAGE CODE
27 = 2.7 V
30 = 3.0 V
33 = 3.3 V
Voltage Code
The TK651xx low power step-up DC-DC converter is
designed for portable battery powered systems, capable of
operating from a single battery cell down to 0.9 V. The
TK651xx provides the power switch and the control circuit
for a boost converter. The converter takes a DC input and
boosts it up to a regulated 2.7, 3.0 or 3.3 V output .
The output voltage is laser-trimmed. A Low Output Indica-
tor detector (LOI) monitors the output voltage and provides
an active low microprocessor reset signal whenever the
output voltage falls below an internally preset limit. An
internal Undervoltage Lockout (UVLO) circuit is utilized to
prevent the inductor switch from remaining in the “on”
mode when the battery voltage is too low to permit normal
operation. Pulse Burst Modulation (PBM) is used to regu-
late the voltage at the V
OUT pin of the IC. PBM is the process
in which an oscillator signal is gated or not gated to the
switch drive each period. The decision is made just before
the start of each cycle and is based on comparing the
output voltage to an internally-generated bandgap refer-
ence. The decision is latched, so the duty ratio is not
modulated within a cycle. The average duty ratio is effec-
tively modulated by the “bursting” and skipping of pulses
which can be seen at the SW pin of the IC. Special care
should be taken to achieve reliability through the use of
Oxide, double Nitride passivation. The TK651xx is avail-
able in a miniature 6-pin SOT-23L-6 surface mount pack-
age.
Customized levels of accuracy in oscillator frequency and
output voltage are available.
TK651xxM
GND
VIN
VOUT
LOI
SW
GND
20P
!
! Guaranteed 0.9 V Operation
!
! Very Low Quiescent Current
!
! Internal Bandgap Reference
!
! High Efficiency MOS Switching
!
! Low Output Ripple
!
! Microprocessor Reset Output
!
! Laser-Trimmed Output Voltage
!
! Laser-Trimmed Oscillator
!
! Undervoltage Lockout
!
! Regulation by Pulse Burst Modulation (PBM)
!
! Battery Powered Systems
!
! Cellular Telephones
!
! Pagers
!
! Personal Communications Equipment
!
! Portable Instrumentation
!
! Portable Consumer Equipment
!
! Radio Control Systems
STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR
FEATURES
DESCRIPTION
APPLICATIONS
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| TK750003DMG | SWITCHING CONTROLLER, 115 kHz SWITCHING FREQ-MAX, PDIP8 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TK65130MTL/30M | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR |
| TK65133 | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR |
| TK65133M | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR |
| TK65133MTL | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR |
| TK65133MTL/33M | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR |
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