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33730 数据表(PDF) 21 Page - Freescale Semiconductor, Inc

部件名 33730
功能描述  SWITCHING POWER SUPPLY
PDF  27 Pages
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制造商  FREESCALE [Freescale Semiconductor, Inc]
网页  http://www.freescale.com
标志 FREESCALE - Freescale Semiconductor, Inc

33730 数据表(HTML) 21 Page - Freescale Semiconductor, Inc

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Analog Integrated Circuit Device Data
Freescale Semiconductor
21
33730
TYPICAL APPLICATIONS
OPERATIONAL MODES
TYPICAL APPLICATIONS
Figure 8. 33730 Typical Application Circuit
Programming Output Voltage (BOLD denotes selected combinations)
P1
P2
P3
VDD3
VDDL
VKAM
High
High
High
3.3V
2.6V
2.6V
High
High
Low
3.3V
3.3V
3.3V
High
Low
High
3.3V
1.5V
1.0V
High
Low
Low
3.3V
3.3V
1.0V
Low
High
High
3.3V Standby
3.3V
1.0V
Low
High
Low
2.0
3.15V
5.0V
Low
Low
High
2.6V Standby
3.3V
1.0V
Low
Low
Low
2.6V Standby
3.3V
1.5V
Standby
Control
VKAM
15 mA,ILim,
TLim
Feed
Forward
Ramp
Generator
Buck
Control Logic
Osc illator
HS Drive,
Level
Shifter
BOOT
SW
VBG
SR
INV
VCOMP
VDDH
VREF1
HRT
KA_VBAT
VBAT
VKAM
RSTH
RSTKAM
GND
Band-Gap
Reference
VBG
HR Timer
VDDL
ILim
VREF2
FREQ
VDDL_B
VDDH
Reset Detect
VDD3_B
VDD3
VBAT
SW
5.0 V,
ILim=150 mA
26.5V,-1V,TLim
T-lim
Ref. Voltage
Programming
Block
Protection
FET
Drive
PFD
UVLO
/OVLO
VDDH =5.0V
@ 2000mA total
Battery
P1
P2
VKAM,VDDL,VDD3,
VDD3_SBY
Ref. Voltage
Charge
Pump
5.0 V,
ILim=150 mA
26.5V,-1V,TLim
VDD3
ILim,TLim
CP
CP
RSTL
VDDL
P3
Optional
Protection FET
VDD3
Reset Detect
RST3
VKAM
Reset Detect
VDDL
Reset Detect
VIGN
REGON
IGN_ON
Enable
22uH
SS26
100uF
20k
5.0k
430R
1.5nF
56pF
20k
2.2nF
10nF
100nF
1.0uF
4.7uF
4.7uF
10uF
5.1k
4x
3.3uH
100uF
1.0uF
1.0uF
10nF
5.1k
10nF
10nF
Feedback Compens ation Network
10nF
CP
Q1
Q2
VDD3_SBY
ILim,TLim
10nF
1.5 V
3.3 V
5.0 V
5.0 V
1.0 V
1.5R
1.0uF
1.5R
RHRT
RFreq
Notes
11.
The VDDH total current includes the sum of all output currents of the IC.
Recommended Q1, Q2:
BCP68T1 (SOT-223)
NJD2873T4 (DPAK)
MJB44H11 (D2PAK)



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