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33730 Datasheet(PDF) 2 Page - Freescale Semiconductor, Inc

Part # 33730
Description  SWITCHING POWER SUPPLY
PDF  27 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

33730 Datasheet(HTML) 2 Page - Freescale Semiconductor, Inc

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Analog Integrated Circuit Device Data
2
Freescale Semiconductor
33730
INTERNAL BLOCK DIAGRAM
INTERNAL BLOCK DIAGRAM
Figure 2. 33730 Simplified Internal Block Diagram
UVLO
/OVLO
VBAT
VBAT
KA_VBAT
VKAM
CP
PFD
REG ON
VIGN
IGN_ON
VREF1
VREF2
P1
P2
P3
RSTKAM
RSTH
RST3
RSTL
SW
SW
FREQ
BOOT
SR
INV
VCOMP
VDDH
VDD3_B
VDD3
VDDL_B
VDDL
HRT
GND
Oscillator
Feed
Forward
Ramp
Generator
HS Drive
Level
Shifter
VKAM
15 mA, ILIM,
TLIM
Protection
FET
Drive
Charge
Pump
5.0V
ILIM=150mA
26.5V,-1V,TLIM
Ref. Voltage
Programming
Block
5.0V
ILIM=150mA
26.5V,-1V,TLIM
Standby
Control
Buck
Control Logic
CP
+
–
+
–
+
–
Enable
VKAM
Reset Detect
VDDH
Reset Detect
VDD3
Reset Detect
VDDL
Reset Detect
HR Timer
VKAM, VDDL, VDD3,
VDD3_SBY
Reference Voltage
Bandgap
Preference
T-lim
VBG
VDD3
ILim, TLim
VDD3_SBY
ILim, TLim
VDDL
ILim
20K
5.0K
VBG



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