KIT33701DWBEVB Freescale Semiconductor, KIT33701DWBEVB Datasheet - Page 34

• Manufacturer Part Number: KIT33701DWBEVB
• Description: KIT FOR 33701 POWER SUPPLY
• Manufacturer: Freescale Semiconductor
• Type: LDO Controllers & Regulatorsr

Specifications of KIT33701DWBEVB

• Main Purpose: DC/DC, Step Down with LDO
• Outputs And Type: 2, Non-Isolated
• Voltage - Input: 2.8 ~ 6V
• Regulator Topology: Buck
• Frequency - Switching: 300kHz
• Board Type: Fully Populated
• Utilized Ic / Part: MC34701
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Voltage - Output: -
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: 34701

34
34701
TYPICAL APPLICATIONS
+3.3V
Supply
Voltage
to MCU
RST
100k
100k
5.1k
5.1k
+3.3V
or
VLDO
Rt
Rt
10k
10k
R
R
pd
pd
10uF
10uF
10uF
10uF
C
C
C
C
10uH
10uH
L
L
IN
IN
BST
BST
BST
BST
Ct
Ct
RST
RESET
RESET
ADDR
ADDR
VBST
VBST
100nF
100nF
SDA
SDA
SCL
SCL
VIN1
VIN1
VBD
VBD
EN2
EN2
RT
RT
EN1
EN1
Q6
7.75V
Q5
8.0V
8.0V
CLKSEL
CLKSEL
Interface
Interface
Control
Control
I
I
I
I
2
2
2
2
C
C
Control
Control
Control
Control
Control
C
C
Reset
Reset
Timer
Timer
Boost
Boost
Boost
POR
POR
Figure 33. Simplified Block Diagram and Basic Application
VIN
VIN
CLKSYN
CLKSYN
Oscillator
Oscillator
Switcher
Switcher
300kHz
300kHz
INV
INV
LFB
LFB
Vref
Vref
Vref
Vref
SysCon
SysCon
Thermal
Thermal
Vref
Vref
Limit
Limit
Reset
Reset
+
+
+
-
-
-
(Optional)
(Optional)
FREQ
FREQ
R
R
F
F
Reference
Reference
VBST
VBST
Bandgap
Bandgap
Voltage
Voltage
VDDI
VDDI
Enable
Enable
Power
Power
Voltage Margining
Voltage Margining
Ramp
Ramp
Ramp
Gen.
Gen.
Gen.
W-dog Timer
W-dog Timer
Control
Control
Sequencing
Sequencing
SoftSt
SoftSt
I
I
SysCon
SysCon
2
2
Power
Power
C
C
VDDI
VDDI
Comp.
Comp.
Internal
Internal
PWM
PWM
Supply
Supply
VDDI
VDDI
(4)
(4)
GND
GND
Control
Control
Control
VDDI
VDDI
Logic
Logic
Logic
+
+
+
Buck
Buck
Buck
-
-
-
VLDO
VLDO
Current
Current
VOUT
VOUT
Power
Power
Down
Down
Vref
Vref
VDDI
VDDI
Limit
Limit
VDDI
VDDI
Amp.
Amp.
Error
Error
Pow. Seq.
Pow. Seq.
Regulator
Regulator
Regulator
Control
Control
Control
Linear
Linear
Linear
UVLO
UVLO
VBST
VBST
Pow.
Pow.
+
+
+
Seq.
Seq.
-
-
-
I-lim
I-lim
I-lim
VBST
VBST
Driver
Driver
Driver
Buck
Buck
Buck
HS
HS
HS
LS
LS
LS
0.8V
0.8V
&
&
&
VOUT
VOUT
To Reset
To Reset
Control
Control
VBST
VBST
Q4
Q4
Q1
Q1
Q3
Q3
Q2
Q2
100pF
100pF
LCMP
LCMP
VDDI
VDDI
BOOT
BOOT
(2)
(2)
(2)
(2)
LDO
LDO
CS
CS
LFB
LFB
2 x 22 uF
2 x 22 uF
LDRV
LDRV
(2)
(2)
VIN2
VIN2
VOUT
VOUT
PGND
PGND
INV
INV
SW
SW
C
C
1.5k
1.5k
IN
IN
1.0 uF
1.0 uF
Analog Integrated Circuit Device Data
4.7k
4.7k
27k
27k
1.5k
1.5k
6.8nF
6.8nF
C
C
B
B
R
R
0.022 R
0.022 R
S
S
Q
Q
R
R
LDO
LDO
b
b
0.1uF
0.1uF
300k
300k
D
D
B
B
C
C
5 x 2.2 uF
5 x 2.2 uF
+3.3V
Supply
Voltage
LDO
LDO
300
300
VLDO=3.3V
Freescale Semiconductor
4.7 uH
4.7 uH
39k
39k
VBST
VBST
L1
L1
470pF
470pF
@1.0A
VOUT=1.8V
+
+ +
100 uF
100 uF
C
C
O
O