Electronic Components Datasheet Search
  English  ▼

X  

Preview PDF HTML

LT1610CS8 Datasheet(PDF) 10 Page - Linear Technology

Part # LT1610CS8
Description  1.7MHz, Single Cell Micropower DC/DC Converter
PDF  16 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1610CS8 Datasheet(HTML) 10 Page - Linear Technology

Back Button LT1610CS8 Datasheet HTML 6Page - Linear Technology LT1610CS8 Datasheet HTML 7Page - Linear Technology LT1610CS8 Datasheet HTML 8Page - Linear Technology LT1610CS8 Datasheet HTML 9Page - Linear Technology LT1610CS8 Datasheet HTML 10Page - Linear Technology LT1610CS8 Datasheet HTML 11Page - Linear Technology LT1610CS8 Datasheet HTML 12Page - Linear Technology LT1610CS8 Datasheet HTML 13Page - Linear Technology LT1610CS8 Datasheet HTML 14Page - Linear Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 10 / 16 page
background image
10
LT1610
APPLICATIONS INFORMATION
output capacitor because it introduces a zero in the
regulator’s loop gain. This zero may not be effective
because the ceramic capacitor’s ESR is very low. Most
current mode switching regulators (including the LT1610)
can easily be compensated without this zero. Any design
should be tested for stability at the extremes of operating
temperatures; this is particularly so of circuits that use
ceramic output capacitors.
Figure 9 details a 2.5V to 5V boost converter. Transient
response to a 5mA to 105mA load step is pictured in Figure
10. The “double trace” of VOUT at 105mA load is due to the
ESR of C2. This ESR aids stability. In Figure 11, C2 is
replaced by a 10
µF ceramic capacitor. Note the low phase
margin; at higher input voltage, the converter may oscil-
late. After replacing the internal compensation network
with an external 220pF/220k series RC, the transient
response is shown in Figure 12. This is acceptable tran-
sient response.
Table 1
FIGURE
C2
COMPENSATION
10
AVX TAJA226M006 Tantalum
Internal
11
Taiyo Yuden JMK316BJ106
Internal
12
Taiyo Yuden JMK316BJ106
220pF/220k
C2
22
µF
R2
324k
C1
22
µF
L1
10
µH
D1
VOUT
5V
100mA
VIN
2.5V
1610 F09
+
+
1M
RC
CC
C1: AVX TAJA226M006
C2: SEE TABLE
D1: MOTOROLA MBR0520
L1: MURATA LQH30100
65
2
7
4
8
1
3
VIN
SW
PGND
FB
SHDN
GND
VC
LT1610
COMP
Figure 9. 2.5V to 5V Boost Converter Can Operate with a
Ceramic Output Capacitor as Long as Proper RC and CC
are Used. Disconnect COMP Pin if External Compensation
Components Are Used
VOUT
100mV/DIV
105mA
5mA
LOAD
CURRENT
500
µs/DIV
1610 F10
Figure 10. Tantalum Output Capacitor
and Internal RC Compensation
VOUT
100mV/DIV
105mA
5mA
LOAD
CURRENT
500
µs/DIV
1610 F11
Figure 11. 10
µF X5R-Type Ceramic Output Capacitor
and Internal RC Compensation has Low Phase Margin
VOUT
100mV/DIV
105mA
5mA
LOAD
CURRENT
500
µs/DIV
1610 F12
Figure 12. Ceramic Output Capacitor with 220pF/220k
External Compensation has Adequate Phase Margin



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com