LTC1701ES5#TR Linear Technology, LTC1701ES5#TR Datasheet - Page 11

• Manufacturer Part Number: LTC1701ES5#TR
• Description: IC CONV DC/DC STEP DOWN TSOT23-5
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC1701ES5#TR

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.25 ~ 5 V
• Current - Output: 500mA
• Frequency - Switching: 1MHz
• Voltage - Input: 2.5 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: TSOT-23-5, TSOT-5, TSOP-5
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

TYPICAL APPLICATIO S
3.3V TO
2.5V TO
C1: AVX TAJA156M010R
C2: AVX TAJA226M006R
2.5V TO
5.5V
V
15 F
5.5V
IN
5.5V
V
15 F
C1
V
10 F
IN
IN
C1
C1
+
C1: AVX TAJA156M010R
C2: AVX TAJA226M006R
C4, C5: TAIYO YUDEN LMK212BJ105MG
+
C1, C2: TAIYO YUDEN JMK316BJ106ML
C4, C5: TAIYO YUDEN LMK212BJ105MG
OFF
C4
1 F
ON
C4
1 F
C4
1 F
5V to 3.3V Converter with Push-Button On/Off
5.1k
5.1k
1M
C4: TAIYO YUDEN LMK212BJ105MG
C5: TAIYO YUDEN JMK212BJ475MG
R4
R3
1M
R4
R3
5.1M
All Ceramic Capacitor 2.5V Converter
2mm Nominal Height 1.5V Converter
R5
1M
R4
C3
330pF
C3
180pF
5.1k
V
I
V
I
TH
R3
TH
IN
IN
/RUN
/RUN
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.
LTC1701
LTC1701
GND
GND
C3
330pF
V
I
U
TH
IN
/RUN
SW
V
V
LTC1701
SW
D1: MBRM120L
L1: MURATA LQH3C4R7M24
FB
FB
GND
L1: MURATA LQH3C4R7M24
D1: MBRM120L
121k
R1
SW
V
R1
100k
FB
D1
D1: MBRM120L
L1: MURATA LQH3C4R7M24
D1
4.7 H
4.7 H
20k
121k
33pF
L1
R2
L1
R2
C6
R1
20.5k
D1
4.7 H
L1
34k
R2
22 F
10 F
C2
C2
+
22 F
C2
+
1701 TA01a
C5
4.7 F
1701 TA02
C5
1 F
V
(1.5V/0.5A)
V
(2.5V/0.5A)
OUT
OUT
1701 TA03a
C5
1 F
V
(3.3V/
0.5A)
OUT
LTC1701/LTC1701B
20mV/DIV
50mA/DIV
V
100
OUT
90
85
80
75
70
65
60
55
50
95
90
85
80
75
70
I
L
1
1
LTC1701B Low Current Pulse Skip
V
V
V
IN
OUT
V
OUT
OUT
= 5V
= 2.5V
= 2.5V
V
= 1.5V
IN
= 2.5V
V
Efficiency Curve
Efficiency Curve
LOAD CURRENT (mA)
LOAD CURRENT (mA)
IN
10
10
= 3.3V
5 s/DIV
V
100
100
V
IN
IN
= 3.3V
= 5.0V
LTC1701
LTC1701B
LTC1701
LTC1701B
11
1701 TA02b
1701TA01b
1701 TA03b
1000
1000