LTC3200ES6-5 Linear Technology, LTC3200ES6-5 Datasheet

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LTC3200ES6-5

Manufacturer Part Number
LTC3200ES6-5
Description
Manufacturer
Linear Technology
Type
Step Upr
Datasheet

Specifications of LTC3200ES6-5

Output Voltage
5V
Output Current
100mA
Operating Supply Voltage (min)
2.7V
Operating Supply Voltage (max)
4.5V
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Package Type
TSOT-23
Pin Count
6
Mounting
Surface Mount
Lead Free Status / Rohs Status
Not Compliant

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0
FEATURES
APPLICATIO S
TYPICAL APPLICATIO
Low Noise Constant Frequency Operation
Output Current: 100mA
Available in 8-Pin MSOP (LTC3200) and Low
Profile (1mm) 6-Pin ThinSOT
Packages
2MHz Switching Frequency
Fixed 5V 4% Output (LTC3200-5) or ADJ
V
Automatic Soft-Start Reduces Inrush Current
No Inductors
I
White LED Backlighting
Li-Ion Battery Backup Supplies
Local 3V to 5V Conversion
Smart Card Readers
PCMCIA Local 5V Supplies
CC
IN
<1 A in Shutdown
Range: 2.7V to 4.5V
2.7V TO 4.5V
V
Regulated 5V Output from a 2.7V to 4.5V Input
IN
OFF
ALL CAPACITORS = MURATA GRM 39X5R105K6.3AJ
OR TAIYO YUDEN JMK107BJ105MA
1 F
ON
U
5
2
3
V
GND
SHDN
4
LTC3200-5
C
IN
1 F
V
OUT
C
+
6
TM
U
1
1 F
(LTC3200-5)
V
I
I
OUT
OUT
OUT
UP TO 40mA, V
UP TO 100mA, V
Charge Pump DC/DC Converters
= 5V 4%
IN
IN
3200-5 TA01
2.7V
3.1V
DESCRIPTIO
The LTC
quency switched capacitor voltage doublers. They pro-
duce a regulated output voltage from a 2.7V to 4.5V input
with up to 100mA of output current. Low external parts
count (one flying capacitor and two small bypass capaci-
tors at V
ideally suited for small, battery-powered applications.
A new charge-pump architecture maintains constant
switching frequency to zero load and reduces both output
and input ripple. The LTC3200/LTC3200-5 have thermal
shutdown capability and can survive a continuous short-
circuit from V
prevents excessive inrush current during start-up.
High switching frequency enables the use of small ceramic
capacitors. A low current shutdown feature disconnects
the load from V
The LTC3200 is available in an 8-pin MSOP package and
the LTC3200-5 is available in a 6-pin ThinSOT.
ThinSOT is a trademark of Linear Technology Corporation.
, LTC and LT are registered trademarks of Linear Technology Corporation.
®
3200/LTC3200-5 are low noise, constant fre-
IN
Low Noise, Regulated
and V
40
30
20
10
Output Ripple Voltage vs Load Current
0
0
OUT
IN
V
C
T
LTC3200/LTC3200-5
A
IN
FLY
and reduces quiescent current to <1 A.
= 25 C
= 3V
OUT
U
= 1 F
to GND. Built-in soft-start circuitry
25
OUTPUT CURRENT (mA)
) make the LTC3200/LTC3200-5
C
OUT
50
= 1 F
C
OUT
= 2.2 F
75
3200 TA02
100
1

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LTC3200ES6-5 Summary of contents

Page 1

... High switching frequency enables the use of small ceramic capacitors. A low current shutdown feature disconnects the load from V The LTC3200 is available in an 8-pin MSOP package and the LTC3200-5 is available in a 6-pin ThinSOT. , LTC and LT are registered trademarks of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation OUT ...

Page 2

... Note 3: The LTC3200E/LTC3200E-5 are guaranteed to meet performance specifications from Specifications over the – operating temperature range are assured by design, characterization and correlation with statistical process controls. Note ORDER PART NUMBER + 6 C LTC3200ES6 – PART MARKING = 230 C/W LTSH unless otherwise noted. ...

Page 3

W U TYPICAL PERFOR A CE CHARACTERISTICS Output Voltage vs Supply Voltage 5. OUT FLY I = 20mA OUT 5. 5. ...

Page 4

LTC3200/LTC3200 TYPICAL PERFOR A CE CHARACTERISTICS V Soft-Start Ramp OUT V SHDN 2V/DIV V OUT 1V/DIV V 200 s/DIV = 3V IN 32005 G08 PIN FUNCTIONS LTC3200/LTC3200 (Pins 1/6): Flying Capacitor Positive Terminal. ...

Page 5

W SI PLIFIED BLOCK DIAGRA S V OUT OUT LTC3200 SOFT-START SWITCH CONTROL 8 2MHz 7 OSCILLATOR – + CHARGE PUMP SGND PGND LTC3200-5 SOFT-START SWITCH CONTROL 1 2MHz OSCILLATOR ...

Page 6

LTC3200/LTC3200-5 U OPERATIO Operation (Refer to Simplified Block Diagrams) The LTC3200/LTC3200-5 use a switched capacitor charge pump to boost regulated output voltage. Regula- IN tion is achieved by sensing the output voltage through an internal resistor divider ...

Page 7

U OPERATIO Maximum Available Output Current For the adjustable LTC3200, the maximum available out- put current and voltage can be calculated from the effec- tive open-loop output resistance voltage IN(MIN – ...

Page 8

LTC3200/LTC3200-5 U OPERATIO LTC3200/LTC3200-5 will be relatively constant while the charge pump is on either the input charging phase or the output charging phase but will drop to zero during the clock nonoverlap times. Since the nonoverlap time is small ...

Page 9

U OPERATIO Power Efficiency The power efficiency ( ) of the LTC3200/LTC3200-5 is similar to that of a linear regulator with an effective input voltage of twice the actual input voltage. This occurs because the input current for a voltage ...

Page 10

LTC3200/LTC3200-5 U OPERATIO The power dissipated in the LTC3200/LTC3200-5 should always fall under the line shown for a given ambient temperature. The power dissipated in the LTC3200/ LTC3200-5 is given by the expression: P (2V – ...

Page 11

... SC-74A (EIAJ) FOR ORIGINAL JEDEL MO-193 FOR THIN Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. U ...

Page 12

... TA04 DRIVE LEDS 100 100 100 100 3200-5 TA03 1 V OUT 50mA 32005 TA05 = 80mA, Output Noise = 60 V OUT = 3.3V at 80mA; ADJ; MSOP Packages OUT = 50mA Q OUT ; RMS OUT IN 32005f LT/TP 0501 2K • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 2000 RMS ...

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