LTC1434CGN Linear Technology, LTC1434CGN Datasheet - Page 16

• Manufacturer Part Number: LTC1434CGN
• Description: IC DC/DC CONV STEP-DOWN 20-SSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC1434CGN

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 3.3V, 5V, Adj
• Current - Output: 450mA
• Frequency - Switching: 125kHz ~ 240kHz
• Voltage - Input: 3 ~ 13.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

LTC1433/LTC1434
16
TYPICAL APPLICATIONS
– 3V TO – 7V
D1: MOTOROLA MBRS130LT3
L1: COILCRAFT DO3316 SERIES
–1.25V
280mA
V
V
OUT
IN
+
V
IN
– 3
– 4
– 5
– 6
– 7
+
100 F*
16V
D1: MOTOROLA MBRM5819
L1: SUMIDA CD54 SERIES
L2: J.W. MILLER PM20-R33M
* AVX TPSD107M010R0100
(V)
100 F*
10V
I
OUT(MAX)
V
–9V
OUT
100pF
Ultralow Output Ripple 5V to – 1.25V MR Head Amplifier Supply
180
300
400
540
680
0.33 H
U
+
L2
(mA)
** AVX TPSE686M020R0150
* AVX TPSE107M016R0100
100 F*
16V
+
N
23.8k
1%
1.2k
1%
100 H
100 F*
10V
22 H
L1
L1
Negative Boost Converter
0.1 F
+
0.1 F
D1
D1
68 F**
20V
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
SSW
NC
BSW
NC
SGND
RUN/SS
LBO
LBI
SSW
NC
BSW
NC
SGND
RUN/SS
LBO
LBI
LTC1433
LTC1433
V
PWRV
OSENSE
V
0.1 F
V
PWRV
PGND
OSENSE
PROG
C
0.1 F
SV
V
POR
PGND
OSC
C
PROG
I
SV
POR
TH
OSC
IN
IN
I
TH
IN
IN
16
15
14
13
12
11
10
9
16
15
14
13
12
11
10
9
100 F*
10V
6800pF
100pF
100pF
10k
5.1k
V
5V
POWER-ON
RESET
IN
5.1k
680pF
6800pF
310k
1%
50k
1%
680pF
1433/34 TA05
1433/34 TA04
100pF