This presentation provides a detailed overview of various IC's for power management and battery management applications. Compare models to each other and the competition!

1. Analog Power
DCDC, nano-Power IC’s
June 2012
Seite 1 © ZMD AG 2010 - Company Confidential – not to be copied or reproduced without ZMD AG’s consent

2. Part # Description Features Application
Wifi access point,
1MHZ switching DCDC converter. Vin 6V – 24V, Vout
battery operated
0.9V to 5.5V, line regulation +/- 2mV, Vout regulation
ZSPM4011 DCDC Converter, 1A devices, Digital TV,
2%, load regulation +/- 0.5%, quiescent current 5uA,
Video Conferencing,
only 4 external components (3 caps, 1 inductor)
Portable applications
Wifi access point,
1MHZ switching DCDC converter. Vin 6V – 24V, Vout
battery operated
0.9V to 5.5V, line regulation +/- 2mV, Vout regulation
ZSPM4012 DCDC Converter, 2A devices, Digital TV,
2%, load regulation +/- 0.5%, quiescent current 5uA,
Video Conferencing,
only 4 external components (3 caps, 1 inductor)
Portable applications
Wifi access point,
1MHZ switching DCDC converter. Vin 6V – 20V, Vout battery operated
0.9V to 5.5V, line regulation +/- 2mV, Vout regulation devices, Digital TV,
ZSPM4013 DCDC Converter 3A
2%, load regulation +/- 0.5%, quiescent current 5uA,
Video Conferencing,
only 4 external components (3 caps, 1 inductor) Portable applications
Related Ultra-Low Power ICs
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3. Part # Description Features Application
Battery Management
VTHRESHOLD 1.2V - 4.2V (100mV steps factory Portable battery-
ZSPM4121 Under Voltage Load
programmed), 70nA standby (100pA disabled) operated electronics
Switch
Vin = 2.5V to 5.5V,
Ultra-Low-Power Linear Portable battery-
ZSPM4141 VOUT 1.2V - 4.2V (100mV steps factory programmed)
Regulator operated electronics
@ 200mA, 20nA standby (100pA disabled)
VIN = VIN = VBATT + 0.3 (3.5V) to 7.2V
Li-ion Charger for Portable battery-
ZSPM4551 IICC-STBY, IBAT-LEAK, TJ see ZSPM4521
conventional sources operated electronics
1.5A of continuous output current
VIN = 4.0V to 7.2V
IICC-STBY (EN=0):15uA (typ) Portable battery-
Li-ion Charger for PV operated electronics,
ZSPM4521 IBAT-LEAK (EN=0, 4.1V):10uA (max)
(Solar) sources Solar-powered
1.5A of continuous output current chargers
TJ = -40C to 125C
VIN = 3.2V to 7.2V Portable battery-
NiMH Charger for PV operated electronics,
ZSPM4522 IICC-STBY, IBAT-LEAK, TJ see ZSPM4521 Solar-powered
(Solar) sources
1.5A of continuous output current chargers
VIN = 3.2V to 7.2V Portable battery-
Super Cap Charger for PV operated electronics,
ZSPM4523 IICC-STBY, IBAT-LEAK, TJ see ZSPM4521 Solar-powered
(Solar) sources
1.5A of continuous output current chargers
Ultra-Low Power Battery Management
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4. ZSPM401x
DCDC Converters
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5. Three Families – 18 Products
• ZSPM4011 (1A): 1.5V, 1.8V, 2.5V,
3.3V, 5.0V, variable Preliminary Data Sheet
Rev. 0.3 / November 2011
ZSPM4011
High Efficiency 1A Synchronous Buck Converter
Preliminary Data Sheet
Rev. 0.3 / November 2011
ZSPM4012
• ZSPM4012 (2A): 1.5V, 1.8V, 2.5V, High Efficiency 2A Synchronous Buck Converter
3.3V, 5.0V, variable Preliminary Data Sheet
Rev. 0.2 / October 2011
ZSPM4013
High Efficiency 3A Synchronous Buck Converter
• ZSPM4013 (3A): 1.5V, 1.8V, 2.5V,
3.3V, 5.0V, variable
ZSPM401X – Line of Products
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6. ZSPM401X – 1MHz, 1/2/3A Current Mode Synch Buck
DC/DC Converter
Key Features Customer Benefits
• Wide Vin 6V to 24V (20V for 3A) • High-level of integrated protection
• Fixed Vout 1.5V, 1.8V, 2.5V, 3.3V, reduces BOM (3 caps, 1 inductor)
5V, adjustable (+/- 2% tolerance) • Wide Vin-range = Highest flexibility
• Adjustable version Vout 0.9V to • Low standby current = low power
5.4V (+/- 1.5% reference) budget
• 5uA (typ) in standby mode
• Optimized for light-load conditions
(PWM, PFM)
Z4011
Applications
• On-card switching regulators
• Set-top box DVD, LCD, LED supply
• Hand-held Devices
ZSPM401X Key Features and Applications
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7. High Level of Integration
RTOP, RBOT Resistor
divider only required
for variable Vout
setting.
Fully integrated DCDC-Converter
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8. ZSPM401x: High Efficiency in a Small Package + 4 ext. Components
• 16-QFN (3x3) = package footprint 9mm2
• 90% (5V in, 1.8V out) 3 x3 mm
• 93% (6V in, 3.3V out) Package
LM3151: High Efficiency in a large Package + 10 ext. Components
• 14-TSSOP (5x6.4) = package footprint 30.2mm2
• 95% (6V in 3.3V out)
5 x 6.4 mm Package
LMR105xx: Medium Efficiency in a Small Package + 9 ext. components
• SOT23 (3x3) = package footprint 9mm2
• 83% (5V in, 1.8V out)
• 91% (5V in, 3.3V out) 3 x 3 mm
package
Apples to Apples – Package Footprint, Efficiency
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9. ZSPM401x and The Competition
Parameter ZSPM401x TPS54325 LM20333
Output
Current 1A,
2A,
3A
Regulator 3A
Regulator 3A
Regulator
Topology Synchronous Synchronous Synchronous
Efficiency
@
1A 93%
(6V
-­‐
3.3V)
91%
(12V
-­‐
3.3V)
93%
(5V
to
3.3V)
90%
(6V
-­‐
1.8V)
87%
(12V
-­‐
1.8V) 89%
(12V
-­‐
3.3V)
85%
(12V
-­‐
1.8V)
Input
Vrange 6V
-­‐
24V
(3A:
6V-­‐20V)
4.5V-­‐18V 4.5V
to
36V
Output
Voltage
0.9V
-­‐
5.0V 0.76V-­‐18V 0.8V-­‐5V
Output
V
accuracy +/-­‐
2% N/A 0.015
Line
Regulation +/-­‐
2mV 20mV 0.05%(From
Graph)
Load
Regulation
+/-­‐
0.5% 100mV Data
sheet
claims
l ess
than
1%
Switching
Frequ. 1MHz Fixed
700
kHz 200
kHz.
Quiescent
A
(typ) 2mA TYP:
0.85ma
MAX:1.3mA 3mA
Quiescent
A
(stby) 5uA 10uA 180uA
Light
Load
Feature Yes Yes No
Fault
Protection
Current
l imit,
thermal
shutdown,
OVP,
OVP,
UVP,
UVLO
and
thermal
shutdown OVP,
UVLO,
THERMAL
Features UVLO
Power
Good
Yes Yes Yes
Soft
Start Yes Yes Yes
Temp
Range -­‐40C
to
125C
(150
Junction) -­‐40C
to
150C
junction ?40°C
to
+
125°C
Package 16L
PQFN
(3x3) PWP
(14
PIN) 20-­‐Lead
e TSSOP
External
Fixed
V out:
3
caps,
1
i nductor
c
apacitors,
2
resistors,
1
i nductor
5
5
capacitors,
2
resistors,
1
i nductor
components Variable
V out:
above,
plus
2
resistors
Competitive Comparison
Seite 9 © ZMD AG 2010 - Company Confidential – not to be copied or reproduced without ZMD AG’s consent

10. ZSPM401x and The Competition
Parameter NCP5252 LM3151 TPS40055
Output
Current 2A
Regulator Controller Controller
Topology Synchronous Synchronous Synchronous
Efficiency
@
1A 90%
(5V
-­‐
3.3)
Defined
by
e xternal
FETS
and
Inductor
Defined
by
e xternal
FETS
and
Inductor
Max
i s
93% and
Caps and
Caps
Input
Vrange 4.5V
to
13.2
Output
Voltage 0.6V
to
5.0V 3.3V
FIXED
Output
V
accuracy +/-­‐
1% N/A
N/A
Line
Regulation 0.1%
/V N/A
N/A
Load
Regulation
Not
specified
(graphs:
about
0.5%) N/A
N/A
Switching
Frequ. Programmable
from
333kHz
to
1.0MHz Fixed
@
250
kHz/500
kHz/750
kHz Programmable
Up
to
1-­‐MHz
Quiescent
A
(norm) 1.0mA
typ;
2.5mA
max 3.6mA 1.5mA
Quiescent
A
(stby) 10uA
max 39uA
@
18Vin
@25C N/A
Light
Load
Feature "Skip
mode"
for
l ight
l oad Not
Specified
(but
l ikely) Yes
Fault
Protection
UVLO,
OVP,
OCP,
Thermal
Shutdown Termal
shutdown,
UVLO,
OVP,
short-­‐ Termal
shutdown,
UVLO,
OVP,
short-­‐
Features circuit,
current
l imit circuit,
current
l imit
Power
Good
Yes No Yes
Soft
Start Yes Yes Yes
Temp
Range ?40°C
to
+
85°C ?40°C
to
+
125°C ?40°C
to
+
125°C
Package QFN16
3x3
mm 14-­‐Lead
e TSSOP
16-­‐Pin
PowerPAD™
External
1
Inductor,
4
resistors,
6
i nput/output
2
External
Fets
,
1
i nductor,
8
Caps. Depends
on
Topology
components caps,
bootstrap
cap,
freq
select
cap
Competitive Comparison
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11. ZSPM4121
Ultra-Low-Power Under-Voltage
Load Switch
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12. Key Functions
1. Provides switching function
• Connects / disconnects battery to
protect from destructive discharge
2. Provides charge to the battery while in
OFF Mode standby (Iqq-off100pA)
• Provided Schottky diode (body diode) in
design
3. Open-drain pull-down for power-good
indication (drive an LED (RED/GREEN)
4. Control load (connect / disconnect) in
energy scavenging (trickle charge)
applications (e.g. indoor solar applications)
ZSPM4121 – Ultra-Low Power Under-Voltage Load Switch
Seite 12 © ZMD AG 2010 - Company Confidential – not to be copied or reproduced without ZMD AG’s consent

13. Typical Application
Typical Application Circuit for
Disconnecting the Battery Direct
Charger Load charge /
disconnect
ZSPM4121
VOUT
battery
VCC
NPG
GND
Typical Application Circuit for
Disconnecting the Load
ZSPM4121
Trickle Load
VOUT
charging Charger VCC
function NPG
GND
ZSPM4121 – Ultra-Low Power Under-Voltage Load Switch
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14. Key Features Customer Benefits
• Vin = 1.2V to 5.5V • Maximum battery life
• VTHRESH = 1.2V to 4.2V (100mV factory • Fully integrated, low component
programmed steps) count
• ON Mode Standby: Iqq (VCC = 5V, no load) • Ultra compact package: 8L DFN 2x2
= 70nA
• OFF Mode Standby: Iqq-disable (VCC <
VTHRESH, no load) = 100pA
• Low Rds(on):
• 175mΩ (typical) @ 5V
• 350mΩ (typical) @ 1.8V
• Operating Temp (Tj): -20C to 85C
• Over-current Shutdown: 3A
Applications
• Hand-held, battery opperated apps
• RFID, energy harvesting
• Consumer Medical and industrial remote
sensor networks
ZSPM4121 – Ultra-Low Power Under-Voltage Load Switch
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15. ZSPM4141
Ultra-Low-Power Line Regulator
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16. Key Features Customer Benefits
• Vin = 2.5V to 5.5V • Maximum battery life
• Vout = 1.2V to 4.2V (100mV steps) • Best-in-class Iqq-disable current:
• Drive loads up to 200mA 100pA (typical)
• Iqq: 20nA (load=0 and Vcc = 4.2V) • Ultra compact package: 8L DFN 2x2
• Iqq-disable: 100pA (EN=0, Iout=0)
• Accurate output regulation: 1%
Vline, 2% Vload
• Over-current protection integrated:
250mA
• Operating Temp (Tj): -20C to 85C
Applications
• Hand-held battery opp. Applications
• RFID, energy harvesting
• Smart Card
ZSPM4141 – Ultra-Low Power Line Regulator
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17. Simple Application Circuit
ZSPM4141
VCC = 2.5V to 5.5V VOUT = 1.2V to 4.2V
VCC VOUT Load
CBYP COUT
0.1µF 2.2µF
(typical) (typical)
EN FB
GND
ZSPM4141 – Ultra-Low Power Line Regulator
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18. Application Example: Standalone Solar Application
Current solar charging technology is not efficient enough for many portable and
standalone applications.
• Solar energy is 1000x lower indoors (10mW/cm2 vs. 10µW/cm2)
• Legacy control circuitry has high active and standby power dissipation
• ZSPM4121 can supply more energy to the application or storage element than
competing solutions
Metrics
Legacy Solution
ZSPM4121
Solar energy available (indoors)
10µW/cm2
10µW/cm2
1” x 2” solar panel
125µW
125µW
Solar harvesting efficiency
75%
85%
Power harvested from panel
93µW
106µW
Loss due to harvesting electronics
-26µW
-420nW
Power available for application
67µW
106µW
Power required by application
100µW
100µW
ZSPM4121 – Ultra-Low Power Under-Voltage Load Switch
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19. Top Reasons to buy ZSPM4121
• Lowest standby power in the industry (Iqq: 70nA; Iqq-disabled: 100pA)
• Compared to existing solutions, 60x reduction (nA vs. µA) in
application standby current
• Quiescent current of ZSPM4121 below battery self-discharge current
• ZSPM4121 is optimized for portable, battery operated apps
• ZSPM4121 enables novel applications (e.g. remote sensing networks)
• Wide VTHRESHOLD range (1.2V to 4.2V) offers great flexibility
• Integrated over-current protection (3A) eliminates external components
• Enables novel applications (e.g. remote sensor systems)
ZSPM4121 – Ultra-Low Power Under-Voltage Load Switch
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20. Top Reasons to buy ZSPM4141
• Lowest standby power in the industry (Iqq: 20nA; Iqq-disabled: 100pA)
• Compared to existing solutions, 100x reduction (nA vs. µA) in application
standby current
• Quiescent current of ZSPM4141 is below battery self-discharge current
• ZSPM4141 is optimized for portable, battery operated apps
• Drives loads up to 200mA over full Vcc range
• Vcc range from (2.5V – 5.5V) offers flexibility
• Integrated over-current shut-down (250mA) reduces external components
• Wide Vout range 1.2V to 4.2V (100mA factory programmed increments)
• Enables novel applications (e.g. remote sensor systems)
ZSPM4141 – Ultra-Low Power Line Regulator
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21. Thank You!
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